31st week of 2022 patent applcation highlights part 76 |
Patent application number | Title | Published |
20220247940 | COMPOSITE VIDEO WITH LIVE ANNOTATION - Methods, systems, and apparatus, including computer programs encoded on computer storage media provide for composite video with live annotations within a video communications platform. First, the system receives video content depicting imagery of a first user, with the video content having multiple video frames. The system then determines a boundary about the first user in the video frames, with the boundary having an interior portion and an exterior portion. The system provides a media background for the exterior portion, then generates a composite video for display on client devices, with the composite video depicting the media background in a first layer and the first user in a second layer. The system then receives one or more annotation inputs corresponding to the composite video. The annotation inputs can include media-based and/or messaging-based annotations. Finally, the system updates the composite video to additionally depict the annotation inputs within a third layer. | 2022-08-04 |
20220247941 | METHODS AND SYSTEMS FOR PROVIDING SUBTITLES - Systems and methods are described for providing subtitles for a media content item. Subtitles are obtained, using control circuitry, for the media content item. Control circuitry determines whether a character component of the subtitles should be replaced by an image component. In response to determining that the character component of the subtitles should be replaced by an image component, control circuitry selects, from memory, an image component corresponding to the character component. Control circuitry replaces the character component of the subtitles by the image component to generate modified subtitles. | 2022-08-04 |
20220247942 | RADIATION IMAGING APPARATUS AND RADIATION IMAGING SYSTEM - A radiation imaging apparatus comprising an imaging region where conversion elements used for an imaging operation of obtaining a radiation image corresponding to incident radiation are arranged, detecting portions in each of which a detecting element used to detect a radiation dose entering the imaging region is arranged, and a controller is provided. The controller is configured to perform, before the imaging operation, an offset readout operation of reading out offset signals of the detecting elements from the detecting portions, detect, in the imaging operation, the radiation dose entering the imaging region by using signals output from the detecting elements during irradiation with radiation and the offset signals, and be capable of changing, during a period of the offset readout operation, an order of reading out the offset signals from the detecting portions. | 2022-08-04 |
20220247943 | IMAGE SENSOR WITH IN-PIXEL BACKGROUND SUBTRACTION AND MOTION DETECTION - An imaging system includes a pixel array configured to generate image charge voltage signals in response to incident light received from an external scene. An infrared illumination source is deactivated during the capture of a first image of the external scene and activated during the capture of a second image of the external scene. An array of sample and hold circuits is coupled to the pixel array. Each sample and hold circuit is coupled to a respective pixel of the pixel array and includes first and second capacitors to store first and second image charge voltage signals of the captured first and second images, respectively. A column voltage domain differential amplifier is coupled to the first and second capacitors to determine a difference between the first and second image charge voltage signals to identify an object in a foreground of the external scene. | 2022-08-04 |
20220247944 | PHOTOELECTRIC CONVERSION DEVICE AND PHOTOELECTRIC CONVERSION SYSTEM - A photoelectric conversion device according to one embodiment includes: a first substrate including a pixel that includes a photoelectric conversion element; and a second substrate including a first control unit that includes a first signal processing unit configured to process a signal from the pixel, the second substrate being stacked together with the first substrate. The signal from the pixel is output to a second signal processing unit disposed at a position different from a position of the first signal processing unit, a path through which the signal from the pixel is output to the first signal processing unit is different from a path through which the signal from the pixel is output to the second signal processing unit, and the first control unit is configured to control the pixel on the basis of the signal processed by the first signal processing unit. | 2022-08-04 |
20220247945 | IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND STORAGE MEDIUM - An image processing device includes an imaging element. The imaging element includes a pixel unit including a photoelectric conversion unit configured to convert light to electric charge and a charge accumulating unit configured to accumulate the electric charge and a column AMP configured to amplify a signal output from the pixel unit with different gains, and outputs a plurality of image signals with different gains applied thereto through one exposure. The image processing device further includes an image synthesizing unit configured to generate a synthetic image signal by synthesizing the plurality of image signals. An image synthesis control unit configured to control the image synthesizing unit determines synthesis proportions of the plurality of image signals in the synthetic image signal according to a common capacity of the charge accumulating unit when the capacity of the charge accumulating unit is shared by the plurality of image signals. | 2022-08-04 |
20220247946 | IMAGE SENSORS - An electronic device includes a first array of image pixels having inputs coupled to first selection tracks and outputs coupled to first output tracks, a second array of test pixels having inputs coupled to second selection tracks and outputs coupled to the first output tracks, and a third array of test pixels having inputs coupled to the first selection tracks and outputs coupled to second output tracks. A processor is coupled to receive output signals on the first and second output tracks. The output signals from the test pixels of the second and third arrays are fixed at one or the other of only two values in the absence of a defect. The output signals received by the processor over the first and second output tracks are processed to determine presence or absence of a defect. | 2022-08-04 |
20220247947 | APPARATUS, SYSTEM, AND MOVABLE BODY - Since a failure related to an output from a sensor is not detected from an image signal and a failure of the sensor is not detected from an output from the sensor in a system including the sensor for abnormality detection, it is not possible to perform the abnormality detection and to indicate the abnormality to the outside of the system. | 2022-08-04 |
20220247948 | PHOTOELECTRIC CONVERSION APPARATUS, PHOTOELECTRIC CONVERSION SYSTEM, AND MOBILE BODY - A photoelectric conversion apparatus includes a second substrate including a signal processing circuit configured to perform signal processing using machine learning on a signal output from the first substrate. The second substrate is disposed on the first substrate in a multilayer structure. The signal processing circuit is so disposed to overlap with a pixel array but not overlap with a light-shielded pixel area as seen in a plan view. | 2022-08-04 |
20220247949 | IMAGE SENSOR AND ELECTRONIC DEVICE INCLUDING THE SAME - An electronic device includes an image sensor that generates image data, and an image processor that processes the image data. The image sensor includes a pixel array including pixels repeatedly disposed along a row direction and a column direction. Each of pixels belonging to a first row of rows of the pixel array includes sub-pixels each connected to one of a first transmission metal line, a second transmission metal line, and a third transmission metal line. In response to signals respectively applied to the first to third transmission metal lines, at least a part of charges integrated at the sub-pixels of the pixels belonging to the first row from among the pixels is diffused to corresponding floating diffusion areas. | 2022-08-04 |
20220247950 | IMAGE CAPTURE ELEMENT AND IMAGE CAPTURE APPARATUS - An image capture element includes: an imaging region having a plurality of first pixels that include a first photoelectric conversion unit and a first circuit unit that is connected to the first photoelectric conversion unit; and a first control line that is connected to the plurality of first pixels, and to which a signal that controls the plurality of first pixels is outputted; and a plurality of light-shielding pixel regions having: a plurality of second pixels that include a second photoelectric conversion unit that is shielded from light and a second circuit unit, wherein the light-shielding pixel region includes therein all of the first pixels in the imaging region that are connected to the first control line of the imaging region, and is arranged outside of a closed region specified such that an outer edge thereof is a minimum length. | 2022-08-04 |
20220247951 | READOUT CIRCUIT AND METHOD FOR TIME-OF-FLIGHT IMAGE SENSOR - A time-of-flight device comprises a pixel array including an array of pixel circuits, wherein a column of the array includes: a first pixel circuit including a first photodiode, a first capacitor and a second capacitor coupled to the first photodiode, and a second pixel circuit including a second photodiode, a third capacitor and a fourth capacitor coupled to the second photodiode, a first signal line coupled to the first capacitor, a second signal line coupled to the second capacitor, a third signal line coupled to the third capacitor, a fourth signal line coupled to the fourth capacitor, a first switch circuitry, a second switch circuitry, a first comparator coupled to the first signal line and the third signal line through the first switch circuitry, and a second comparator coupled to the second signal line and the fourth signal line through the second switch circuitry. | 2022-08-04 |
20220247952 | IMAGING DEVICES WITH GATED TIME-OF-FLIGHT PIXELS WITH FAST CHARGE TRANSFER - A pixel array includes a plurality of pixels. Each pixel includes a photoelectric conversion region that converts incident light into electric charge, and a charge transfer section coupled to the photoelectric conversion region and having line symmetry along a first axis in a plan view. The charge transfer section includes a first transfer transistor coupled to a first floating diffusion and the photoelectric conversion region and located at a first side of the photoelectric conversion region, and a second transfer transistor coupled to a second floating diffusion and the photoelectric conversion region and located at the first side of the photoelectric conversion region. | 2022-08-04 |
20220247953 | IMAGE SENSOR CHIP AND SENSING METHOD THEREOF - An image sensor chip and a sensing method thereof are provided. The image sensor chip includes a pixel array. The pixel array includes a plurality of pixel units, and each of the pixel units includes a light sensing circuit, a reset switch and an output circuit. The reset switch is coupled to a first terminal of the light sensing circuit. The reset switch resets the light sensing circuit during reset period. The output circuit is coupled to the first terminal of the light sensing circuit. The output circuit of the pixel unit outputs difference information corresponding to the difference between the first sensing result of the light sensing circuit in a first frame period and the second sensing result of the light sensing circuit in a second frame period after the first frame period to a corresponding one of a plurality of readout lines of the pixel array. | 2022-08-04 |
20220247954 | IMAGE SENSOR AND OPERATION METHOD OF IMAGE SENSOR - An image sensor includes a pixel suitable for supplying a pixel signal corresponding to sensed light to an output node; a current source suitable for sinking a current from the output node and increasing the amount of sinking current in a first boosting section within a section in which the pixel signal is output from the pixel; and an analog-to-digital conversion circuit suitable for digitally converting a voltage of the output node. | 2022-08-04 |
20220247955 | IMAGE SENSOR - An image sensor comprises a row driver, a first row line which is connected to the row driver, first to fourth pixels connected to the first row line, first to fourth column lines connected to the first to fourth pixels and configured to receive respective first to fourth output signals from the first to fourth pixels, a boosting circuit connected to the first to fourth column lines, a second row line connected to the boosting circuit, first and second boosting drivers connected, respectively, to first and second terminals of the second row line. The boosting circuit may adjust voltage of the first and second output signals based on a first boosting enable signal received from the first boosting driver and may adjust a voltage of the third and fourth output signals based on a second boosting enable signal received from the second boosting driver. | 2022-08-04 |
20220247956 | PHOTOELECTRIC CONVERSION DEVICE - Provided is a photoelectric conversion device including: a pixel array including a plurality of pixels arranged to form a plurality of columns; and a column circuit arranged corresponding to each of the plurality of columns of the pixel array. The column circuit includes a sample and hold unit and a plurality of lines including a line configured to supply a potential to the sample and hold unit. The plurality of lines is commonly connected or separated in the photoelectric conversion device. | 2022-08-04 |
20220247957 | PHOTOELECTRIC CONVERSION APPARATUS, A/D CONVERTER, AND EQUIPMENT - A photoelectric conversion apparatus includes a light receiving circuit configured to convert light into an electrical signal, a readout circuit configured to read out an analog signal corresponding to the electrical signal, a ΔΣ A/D converter configured to convert the analog signal into a digital signal, and a control circuit configured to change a gain of the photoelectric conversion apparatus in accordance with a change of a driving mode of the photoelectric conversion apparatus. The analog signal read out by the readout circuit is an analog current signal. The readout circuit includes a variable resistor on a signal path for supplying the analog current signal to the ΔΣ A/D converter. The control circuit changes the gain of the photoelectric conversion apparatus by changing a resistance value of the variable resistor. | 2022-08-04 |
20220247958 | PHOTOELECTRIC CONVERTER, PHOTOELECTRIC CONVERSION SYSTEM, AND MOVING BODY - A photoelectric converter includes a structure in which a first substrate and a second substrate are stacked, wherein a pixel array including a plurality of pixels is arranged on the first substrate, and at least part of a sample-and-hold circuit configured to sample and hold a signal output from the pixel array is arranged on the first substrate, and wherein at least part of a delta-sigma AD converter configured to convert an analog signal output from the sample-and-hold circuit into a digital signal is arranged on the second substrate. | 2022-08-04 |
20220247959 | PHOTOELECTRIC CONVERTER, PHOTOELECTRIC CONVERSION SYSTEM, MOVING BODY, AND SEMICONDUCTOR SUBSTRATE - A photoelectric converter includes a pixel array including a plurality of pixels, a capacitive coupling amplifier configured to amplify a signal output from the pixel array, and a delta-sigma AD converter configured to convert, into a digital signal, an analog signal output from the amplifier. The amplifier is formed by a plurality of first elements including an active element and a capacitive element. The delta-sigma AD converter is formed by a plurality of second elements including an active element and a capacitive element. A breakdown voltage of at least one of the plurality of second elements forming the delta-sigma AD converter is lower than a breakdown voltage of the plurality of first elements forming the amplifier. | 2022-08-04 |
20220247960 | IMAGE SENSOR AND IMAGE CAPTURING APPARATUS - An image sensor, comprising a pixel region in which a plurality of pixel units are arranged, each pixel unit having first and second photoelectric conversion portions, a first output portion that outputs, outside of the image sensor, a first signal based on a signal from the first photoelectric conversion portion of the pixel units, and a second output portion that outputs a second signal based on a signal from the first photoelectric conversion portion and a signal from the second photoelectric conversion portion of the pixel units, wherein output of the first signal from the first output portion and output of the second signal from the second output portion are performed in parallel. | 2022-08-04 |
20220247961 | PHOTOELECTRIC CONVERSION DEVICE - The photoelectric conversion device includes pixels arranged in a plurality of columns, a plurality of output lines from which signals are output from the pixels, and a plurality of column circuits provided corresponding to the plurality of output lines. The column circuit includes first and second sample-and-hold circuits for holding first and second signals. The sample-and-hold circuits include first switches provided between the output line and each unit capacitor, and second switches provided between first electrodes of adjacent unit capacitors. The second electrodes of the unit capacitor of the first sample-and-hold circuit are connected to each other by a first interconnection, and the second electrodes of the unit capacitor of the second sample-and-hold circuit are connected to each other by a second interconnection. The second switches are arranged along a first direction parallel to the plurality of columns, and the first and second interconnections extend along the first direction. | 2022-08-04 |
20220247962 | OPTICAL MEASUREMENT DEVICE AND OPTICAL MEASUREMENT SYSTEM - To enable multicolor analysis while suppressing upsizing. An optical measurement device according to an embodiment includes: a spectral optical system ( | 2022-08-04 |
20220247963 | PHOTOELECTRIC CONVERSION DEVICE, PHOTOELECTRIC CONVERSION SYSTEM, AND MOVING BODY - A photoelectric conversion device includes a photoelectric converter, a first node configured to be supplied with charges from the photoelectric converter, an amplification transistor configured to output a signal corresponding to a voltage of the first node, a first transistor configured to open/close a path between the first node and a second node not included in a path from the photoelectric converter to the first node, and a second transistor configured to open/close a path between the second node and a third node. A second capacitance which is added to the second node when the second transistor is set in a conductive state is larger than a first capacitance which is added to the first node when the first transistor is set in a conductive state. | 2022-08-04 |
20220247964 | PHOTOELECTRIC CONVERSION DEVICE, ELECTRONIC DEVICE, AND SUBSTRATE - A photoelectric conversion device comprising a pixel portion in which pixels each including a photoelectric converter are arranged, a sample/hold unit configured to sample a signal generated in the photoelectric converter via a vertical signal line and hold the signal, and a converter configured to perform an analog/digital conversion is provided. In the sample/hold unit, a first sample/hold circuit that samples a signal for when the photoelectric converter is reset and a second sample/hold circuit that samples a signal for when a photoelectric conversion operation is performed are connected to one vertical signal line. The pixel portion is arranged on a first substrate, a part of a group configured by the sample/hold unit and the converter is arranged on a second substrate, and another part of the group is arranged on a third substrate. | 2022-08-04 |
20220247965 | PHOTOELECTRIC CONVERSION DEVICE AND ELECTRONIC DEVICE - A photoelectric converter comprising a pixel unit and a processor configured to process a pixel signal output from the pixel unit is provided. The processor comprises a ΔΣ AD converter configured to convert the pixel signal into a digital signal. The ΔΣ AD converter comprises a subtracter to which the pixel signal and a subtraction signal are input, an integrator configured to receive an output from the subtracter, a comparator configured to compare an output from the integrator with a predetermined voltage, a decimation filter configured to generate the digital signal based on an output from the comparator, a delay unit configured to delay an output from the comparator, a buffer configured to buffer an output from the delay unit, and a DA converter configured to convert an output from the buffer into an analog signal to generate the subtraction signal. | 2022-08-04 |
20220247966 | PHOTOELECTRIC CONVERSION APPARATUS, PHOTOELECTRIC CONVERSION SYSTEM, MOVING BODY - A photoelectric conversion apparatus includes a first substrate including a pixel array including a plurality of pixels, a second substrate layered on the first substrate and including an AD conversion portion including a plurality of AD conversion circuits configured to convert a signal output from the first substrate into a digital signal, wherein the second substrate further includes a plurality of signal processing units including a first signal processing unit and a second signal processing unit both configured to perform machine learning processing, wherein each of a plurality of sets includes a plurality of AD conversion circuits that differ between the plurality of sets, wherein the first signal processing unit is arranged to correspond to one of the plurality of sets, and wherein the second signal processing unit is arranged to correspond to another one of the plurality of sets. | 2022-08-04 |
20220247967 | IMAGE SENSOR - An image sensor that operates at high speed and high accuracy with low power consumption. A CMOS image sensor includes: a pixel unit including a plurality of pixels two-dimensionally arranged in a row direction and a column direction, each of the plurality of pixels including a sensor element configured to detect a physical amount existing in nature and to convert the physical amount into an electric signal; a resistance type digital-to-analog converter including a plurality of unit circuits connected in parallel to one another and configured to generate a ramp wave, each of the plurality of unit circuits including a resistor connected to an output end of a CMOS inverter; and an analog-to-digital conversion unit including a plurality of integral type analog-to-digital converters and configured to convert signals from the pixels into digital signals by comparing the signals from the pixels with the ramp wave. | 2022-08-04 |
20220247968 | DISPLAY DEVICE AND CONTROL METHOD THEREFOR - A method for controlling a display device, according to one embodiment of the present invention, comprises: displaying, on a main screen of a display device, content including at least one object; receiving an input for selecting a specific object from the at least one object displayed on the main screen; specifying the specific object by corresponding to the received selection input, expanding a specific area including the specific object; displaying a window including the content displayed on the main screen; displaying the expanded specific area on the main screen; and displaying, within the displayed window, an indicator for displaying the expended specific area, wherein the specific area changes according to a position of the specific object, and the content corresponds to a video. | 2022-08-04 |
20220247969 | RECORDING DEVICE, RECORDING METHOD, AND PROGRAM - A recording device includes an acquisition unit configured to acquire predetermined information including at least an image of an area around a vehicle, a recording unit configured to record the predetermined information acquired by the acquisition unit as a file, a playback unit configured to play back a designated file among a plurality of files recorded in the recording unit, and a file management unit configured to extract a file recorded in a period substantially continuous in time series with a file being played back from the plurality of files and protect writing of the extracted file. Thus, it is possible to provide a recording device capable of preventing writing of a file related to a file being played back. | 2022-08-04 |
20220247970 | Offloading Visual Frames to a Gateway Device - Implementations offload visual frames from a client device to a gateway or edge device for processing. The client device can receive streaming visual frames and a request to process the visual frames using a data service. The client device can offload visual frames to a gateway or edge device preloaded with a resource that corresponds to the requested data service. After the gateway or edge device processes the visual frames using the resource, the processed visual frames can be returned to the client device. In implementations, the offload device and client device are situated in a network such that a latency for the offload communications supports real-time video display. A gateway device manager can locate a gateway connected to the client device, and resources can be deployed (or the gateway can be prepopulated) so that the device can perform gateway services and edge processing services for the client device. | 2022-08-04 |
20220247971 | Virtual Digital Twin Videoconferencing Environments - A telepresence communication system for group meeting rooms and personal home and office systems provides improved human factor experience through substantially life size images with eye level camera placement. The system provides switched presence interfaces so that conferees can select when to transmit their images during a conference and optionally provides individual microphones for each of conferee. Switched presence between presets of conferees are viewed on multipoint windows overlaying life-size images upon eye contact camera regions and eliminate seeing camera image movement during pan, tilt and zoom operations. An ambient light rejecting filter system enables an eye level camera to be hidden behind a projection screen and provides bright, high contrast images under normal meeting room and office environments. A telepresence organizational enablement system brings all the features of a corporate office complex and its social and organizational benefits, into a virtual community eliminating the need to centralize employees. | 2022-08-04 |
20220247972 | Video Call Queues - A method includes receiving a request for an interaction with an agent of a contact center. The method includes establishing a private web session when the agent is unavailable. The method includes determining an estimated wait time for the interaction. The method includes selecting visual content based on matching the estimated wait time with one or more visual content items. The method includes outputting the visual content to the private web session. | 2022-08-04 |
20220247973 | METHOD FOR ENABLING SYNTHETIC AUTOPILOT VIDEO FUNCTIONS AND FOR PUBLISHING A SYNTHETIC VIDEO FEED AS A VIRTUAL CAMERA DURING A VIDEO CALL - A method for publishing a synthetic video feed during a video call including, during an operating period: tracking a computational load of a first device; and receiving a sequence of frames in a video feed from a camera facing a first user. The method also includes, responsive to the computational load of the first device falling below a first computational load threshold: detecting the first user's face in the sequence of frames; generating facial landmark containers representing facial actions of the first user; inserting the facial landmark containers and a look model, into a synthetic face generator to generate a first synthetic video feed; and publishing the first synthetic video feed for access by a second device. The method further includes, responsive to the computational load of the first device exceeding the first computational load threshold, offloading generation of a second synthetic video feed to the second device. | 2022-08-04 |
20220247974 | MULTIPLE HOST MANAGEMENT OF VIDEOCONFERENCING SUB-MEETINGS - One example system for multiple host management of videoconferencing sub-meetings includes a processor and at least one memory device. The processor establishes a main videoconferencing meeting and establishes a host of the main videoconferencing meeting. The host participates using a first host client device. The processor can receive a selection of a participant to be a co-host. The co-host participates in the main videoconferencing meeting from a second host client device. The processor receives a first sub-meeting control input from the second host client device, wherein the first sub-meeting control input identifies an action to perform with respect to a sub-meeting. The system generates a second sub-meeting control input based on the first sub-meeting control input, executes the second sub-meeting control input, and discards the first sub-meeting control input so that the sub-meeting command is associated with the main host. | 2022-08-04 |
20220247975 | VISUAL INDICATORS FOR PROVIDING USER AWARENESS OF INDEPENDENT ACTIVITY OF PARTICIPANTS OF A COMMUNICATION SESSION - The present disclosure provides systems that display visual indicators that provide user awareness of independent activity of participants in a communication session. The visual indicators are displayed within a Together Mode user interface that gives participants of a communication session a feeling that they are in the same room. The visual indicators further the technical benefits of the Together Mode user interface by providing additional context to particular non-verbal social cues. A system can generate a visual indicator that notifies meeting participants that a particular user is engaged with a computing device. The visual indicator can be generated in response to detecting that the user is interacting with an input device, such as a keyboard or touchscreen. The visual indicator mitigates confusion of non-verbal social cues, e.g., when a person appears to be looking at another participant of a meeting but is actually looking at, and interacting with, a computer. | 2022-08-04 |
20220247976 | CONNECTED CAMERA SYSTEM FOR VEHICLES - Methods and systems for sharing image data between vehicles. The system includes an image sensor of a first vehicle configured to detect image data of an environment around the first vehicle as it traverses a road. The system also includes a transceiver of the first vehicle configured to communicate the detected image data. The system also includes a transceiver of a second vehicle configured to receive the detected image data. The system also includes a display screen of the second vehicle configured to display a view of the environment around the road based on the detected image data. | 2022-08-04 |
20220247977 | VIDEO DOORBELL AND POWER SUPPLY METHOD THEREOF - A power supply method for a video doorbell is provided. The video doorbell is electrically connected with an external power supply unit. The video doorbell includes a camera unit, a power storage unit and an actuation unit. The power supply method includes the following steps. If the actuation unit is triggered, the power storage unit provides electric power to the camera unit. If the actuation unit has been triggered for a time duration longer than a predetermined length of time, the power supply unit provides electric power to the camera unit. | 2022-08-04 |
20220247978 | Systems and Methods of Detecting and Responding to a Visitor to a Smart Home Environment - A method of presenting appropriate actions for responding to a visitor to a smart home environment via an electronic greeting system of the smart home environment, including detecting a visitor of the smart home environment; obtaining context information from the smart home environment regarding the visitor; based on the context information, identifying a plurality of appropriate actions available to a user of a client device for interacting with the visitor via the electronic greeting system; and causing the identified actions to be presented to the user of the client device. | 2022-08-04 |
20220247979 | PHOTOELECTRIC CONVERSION APPARATUS - A photoelectric conversion apparatus has a first filter arranged so as to correspond to a first photoelectric conversion unit and a second filter arranged so as to correspond to a second photoelectric conversion unit. The photoelectric conversion apparatus has a first processing unit configured to process an output signal from the first photoelectric conversion unit and having a first learned model, and a second processing unit configured to process an output signal from the second photoelectric conversion unit and having a second learned model different from the first learned model. | 2022-08-04 |
20220247980 | APPARATUS AND METHOD FOR ACQUIRING IMAGE - An apparatus for acquiring an image includes an image sensor, a light compensator, and a light filter assembly. The image sensor is on a light output side of the light filter assembly, and is configured to generate and output a first image signal and a second image signal by a plurality of exposures. The first image signal is generated according to a first preset exposure and the second image signal is generated according to a second preset exposure, and they are two of the plurality of exposures. The light compensator includes a first light compensation apparatus, the first light compensation apparatus is configured to perform near-infrared light compensation, and the near-infrared light compensation is performed in at least part of an exposure period of the first preset exposure but is not performed in an exposure period of the second preset exposure. | 2022-08-04 |
20220247981 | SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, IMAGE CAPTURE DEVICE, AND MEDICAL IMAGE CAPTURE DEVICE - To enable tunable wavelength extraction and detection of a narrow band, while maintaining resolution. | 2022-08-04 |
20220247982 | DISPLAY APPARATUS WITH A REDUCED POWER CONSUMPTION - The invention relates to a display apparatus which comprises an illumination device for emitting light, a spatial light modulation device for modulating incident light, an optical system and a control device. The optical system is provided for generating at least one image of the spatial light modulation device as a segment, where the optical system further comprises a deflection device for directing the image of the spatial light modulation device to a defined position in the field of view of a user. The control device is coupled to the illumination device and the deflection device and embodied to switch the illumination device on the basis of a control of the deflection device. | 2022-08-04 |
20220247983 | PROJECTION APPARATUS AND KEYSTONE CORRECTION METHOD - A projection apparatus and a keystone correction method thereof are provided. The projection apparatus includes a display processing circuit including an image processing circuit, a first keystone correction circuit, a rotation circuit, a second keystone correction circuit, and a video output circuit. The first keystone correction circuit performs first keystone correction processing on a processed image frame based on horizontal scaling processing to obtain a first corrected image frame. The rotation circuit performs rotation processing on the first corrected image frame to write a rotated image frame into a memory. The second keystone correction circuit reads the rotated image frame from the memory and performs second keystone correction processing on the rotated image frame based on the horizontal scaling processing to obtain a second corrected image frame. The video output circuit transmits the second corrected image frame to a projection module through a data transmission interface. | 2022-08-04 |
20220247984 | SYSTEM AND METHOD FOR INTERACTIVE PROJECTION - An interactive projection system and method comprising a camera/projector unit having a computer processor connected via a network to a content server and content database. The system projects interactive trigger areas on a three-dimensional object. Specific content stored on the content server or locally in the memory of the computer processor is associated with each trigger area. A user interacts with the trigger areas and the system projects informational or entertainment content about the object on the surface of the object. | 2022-08-04 |
20220247985 | SETTING METHOD AND A NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM STORING A PROGRAM - A setting method includes acquiring arrangement information including first information representing a positional relationship between a projector and a projection surface and second information representing a size of a first image projected onto the projection surface from the projector, acquiring, based on the arrangement information, one or a plurality of pieces of setting information, each of which including a plurality of setting values used for the projector to project the first image onto the projection surface, and outputting one piece of setting information of the one or plurality of pieces of setting information to the projector. | 2022-08-04 |
20220247986 | IMAGE PROJECTING APPARATUS AND CONTROLLING METHOD THEREOF - An image projecting apparatus including an optical output unit for projecting and image, a camera, a plurality of sensors, and a processor is disclosed. The processor is configured to identify, based on sensing data received through the plurality of sensors, a distance between each of the plurality of sensors and a projection surface, provide, based on a difference between the identified distances being greater than or equal to a pre-set threshold value, a user interface configured to guide a direction adjustment of the image projecting apparatus, and identify, based on a difference between the identified distances being less than the pre-set threshold value, a shape of a projected image by photographing an image projected to the projection surface through the camera, and control the optical output unit to project an image corrected based on the identified shape. | 2022-08-04 |
20220247987 | IMAGE DEMOSAICING TAKING ACCOUNT OF CHROMATIC ABBERATION - A method of chromatically-corrected image demosaicing for a sensor with a colour filter array (CFA) such as a Bayer filter array. The demosaicing makes use of local chromatic aberration correction data to determine chromatically-corrected pixel positions for spatial interpolation. In implementations a chromatically-corrected quadratic adjustment is also applied. | 2022-08-04 |
20220247988 | ELECTRONIC DEVICE AND METHOD FOR CONTROLLING THE SAME - An electronic device includes a transparent first display panel, a second display panel and a processor electrically connected to the two panels. The first display panel is movable with respect to the second display panel. The processor is configured to switch between a plurality of display modes based on relative positioning of the two panels and to provide video signals to the two panels based on a current display mode. When the first display panel is parallel to the second display panel and faces a display area of the second display panel, the processor executes a stereoscopic display mode. When an angle between the two panels is between 0 and 180 degrees, exclusive, the processor executes an augmented reality display mode. When the display areas of the two panels are oriented away from each other, the processor executes a dual display mode. | 2022-08-04 |
20220247989 | Method and device for processing multi-view video data - A method and a device for processing multi-view video data. The multi-view video data includes at least one part of a decoded image of at least one view of the multi-view video, from an encoded data stream representative of the multi-view video. At least one item of data, referred to as synthesis data, is obtained from at least the one part of the decoded image, and at least one image of an intermediate view of the multi-view video not encoded in the encoded data stream is synthesized from at least the one part of the decoded image and from the synthesis data obtained. | 2022-08-04 |
20220247990 | Method, An Apparatus And A Computer Program Product For Virtual Reality - A method includes generating a bitstream defining a presentation, the presentation comprising an omnidirectional visual media content and a first visual media component and a second visual media component; indicating in the bitstream a first presentation timeline and a second presentation timeline; and indicating in the bitstream a switching mode with respect to the first presentation timeline associated with the first visual media component, or with respect to the second presentation timeline associated with the second visual media component, the switching mode being indicated dependent on a viewpoint of a user; wherein the switching mode provides an indication of switching to the first visual media component or to the second visual media component, the first visual media component corresponding to content captured from a first omnidirectional camera in a first location, and the second visual media component corresponding to content captured from a second omnidirectional camera in a second location. | 2022-08-04 |
20220247991 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, REPRODUCTION PROCESSING DEVICE, AND REPRODUCTION PROCESSING METHOD - An atlas processing unit generates atlas identification information associating a texture image that forms a reference two-dimensional image corresponding to each projection direction formed by projecting three-dimensional data from a predetermined viewpoint position in a plurality of projection directions and a complementary image for generating, from the reference two-dimensional image, a moved two-dimensional image based on a viewpoint position moved within a limited range from the predetermined viewpoint position, with a depth image corresponding to the texture image, and each piece of post decoding information for rendering each reference two-dimensional image and each moved two-dimensional image, the post decoding information including first post decoding information indicating that the first post decoding information is information of a “3DoF+” region in which the complementary image in the texture image is stored. An encoding unit encodes the texture image and the depth image to generate a texture layer and a depth layer. | 2022-08-04 |
20220247992 | TECHNIQUES FOR MEASURING DEPTH AND POLARIZATION FROM A SINGLE SENSOR - In some embodiments, an image sensor is provided. The image sensor comprises a plurality of photodiodes arranged as a photodiode array. The photodiodes of the photodiode array are arranged into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant. A first polarization filter and a first telecentric lens are aligned with the first quadrant. A second polarization filter and a second telecentric lens are aligned with the second quadrant. A third polarization filter and a third telecentric lens are aligned with the third quadrant. A fourth telecentric lens is aligned with the fourth quadrant. | 2022-08-04 |
20220247993 | METHOD FOR OBTAINING A THREE-DIMENSIONAL MODEL OF AN INSPECTION SITE - A method for obtaining a three-dimensional model of an inspection site, using a perception module, is disclosed. The perception module comprises a detection unit, e.g. comprising one or more cameras and/or a three-dimensional laser scanner, configured to obtain a three-dimensional image. At least one three-dimensional image is obtained by means of the detection unit. A three-dimensional model of surroundings of the perception module is created, based on the obtained three-dimensional image. The created three-dimensional model and a plan of the inspection site are compared and features of the created three-dimensional model and features of the plan of the inspection site are matched. A site-specific three-dimensional model of the inspection site is formed, based on the created three-dimensional model and the plan of the inspection site, and based on the comparison. | 2022-08-04 |
20220247994 | METHOD FOR CALIBRATING 3D CAMERA BY EMPLOYING CALIBRATED 2D CAMERA - A method for calibrating a 3D camera includes arranging a 3D object and a background with contrast color on surfaces, and capturing the 3D object to get an image by a 2D camera and capturing a point cloud by the 3D camera in a one-pass operation. The raw colors of the 3D object and the background of the point cloud are separated and recorded. The point cloud of the 3D object and the background are transformed into the position of the corresponding pixel in the image to get transformed colors. The missing score is computed based on color changes of the point cloud. The transform parameter transforming the coordinate systems of the cameras is optimized to reduce the missing score, so as to quickly calibrate the 3D camera. | 2022-08-04 |
20220247995 | IMAGING SYSTEM CONFIGURED TO USE TIME-OF-FLIGHT IMAGING AND STEREO IMAGING - An imaging system is configured to use an array of time-of-flight (ToF) pixels to determine depth information using the ToF imaging method and/or the stereo imaging method. A light emitting component emits light to illuminate a scene and a light detecting component detects reflected light via the array of ToF pixels. A ToF pixel is configured to determine phase shift data based on a phase shift between the emitted light and the reflected light, as well as intensity data based on an amplitude of the reflected light. Multiple ToF pixels are shared by a single micro-lens. This enables multiple offset images to be generated using the intensity data measured by each ToF pixel. Accordingly, via a configuration in which multiple ToF pixels share a single micro-lens, depth information can be determined using both the ToF imaging method and the stereo imaging method. | 2022-08-04 |
20220247996 | VR IMAGE PROCESSING METHOD AND APPARATUS, VR GLASSES AND READABLE STORAGE MEDIUM - Provided are VR image processing method and apparatus. The method includes: rendering left-eye and right-eye viewpoint regions based on left-eye and right-eye view angles respectively, to obtain left-eye and right-eye viewpoint images; determining a candidate region based on positions of the left-eye and right-eye view angles, and selecting a point in the candidate region as a peripheral image view angle; rendering left-eye and right-eye viewpoint peripheral regions based on the peripheral image view angle, to obtain a same viewpoint peripheral image; splicing the viewpoint peripheral image with the left-eye viewpoint image and with the right-eye viewpoint image to obtain a left-eye complete image and a right-eye complete image; and reducing, when a displacement of a left-eye viewpoint or a right-eye viewpoint within a preset time period is less than a preset displacement, an area of a corresponding viewpoint region and increasing an area of a corresponding viewpoint peripheral region. | 2022-08-04 |
20220247997 | ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD - An encoder includes circuitry and memory coupled to the circuitry. In operation, the circuitry: determines whether an image format of a video is a format including a chroma component; when it is determined that the image format is a format including a chroma component, signals a flag indicating whether application of JCCR is allowed or not in a header of a stream, and (i) encodes the video with application of the JCCR allowed, or (ii) encodes the video with application of the JCCR not allowed; and when it is determined that the image format is a format including no chroma component, signals no flag indicating whether application of the JCCR is allowed or not in the header of the stream, and encodes the video with application of the JCCR not allowed. | 2022-08-04 |
20220247998 | Video encoding method and related video encoder - A method for a video encoder includes steps of: receiving a series of input frames; performing at least one of intra-prediction and inter-prediction on the series of input frames for generating at least one of an intra frame (I-frame), a predictive frame (P-frame), and a key predictive frame (key P-frame); generating an encoded bitstream with respect to a first input frame determined as the I-frame among the series of input frames; and performing inter-prediction on a second input frame determined as a key P-frame among the series of input frames according to a first reference frame which is derived from the encoded bitstream with respect to the first input frame. | 2022-08-04 |
20220247999 | Method and Apparatus of Harmonizing Weighted Prediction with Non-Rectangular Merge Modes - An inter prediction method includes determining whether a non-rectangular inter prediction mode is allowed for a group of blocks; obtaining one or more inter prediction mode parameters and weighted prediction parameters for the group of blocks; and obtaining prediction value of a current block based on the one or more inter prediction mode parameters and weighted prediction parameters, wherein one of the inter prediction mode parameters indicates reference picture information for the current block, and wherein the group of blocks comprises the current block. | 2022-08-04 |
20220248000 | COLOUR COMPONENT PREDICTION METHOD, ENCODER, DECODER AND STORAGE MEDIUM - Disclosed are a colour component prediction method, an encoder, a decoder, and a storage medium. The method includes: determining adjacent reference pixels of a current block in a picture; constructing a subset of adjacent reference pixels according to the adjacent reference pixels, wherein the subset of adjacent reference pixels contains a part of the adjacent reference pixels; and calculating model parameters of a prediction model according to the subset of adjacent reference pixels, wherein the prediction model includes N prediction sub-models, the N prediction sub-models correspond to N groups of model parameters, and the prediction sub-models are used to perform, through corresponding model parameters, cross-component prediction of colour components to be predicted, and N is a positive integer greater than or equal to 2. | 2022-08-04 |
20220248001 | IMAGE COMPONENT PREDICTION METHOD AND DEVICE, AND COMPUTER STORAGE MEDIUM - Colour component prediction method is provided, which includes that: first reference sample set corresponding to colour component to be predicted of coding block in video image is acquired; when available sample number in first reference sample set is less than preset number, preset component value is taken as predicted value corresponding to the colour component to be predicted; when available sample number in first reference sample set is not less than preset number, first reference sample set is screened to obtain second reference sample set; when available sample number in second reference sample set is equal to preset number, model parameter is determined through second reference sample set, and prediction model corresponding to colour component to be predicted is obtained based on model parameter, prediction model is used for prediction processing of colour component to be predicted to obtain predicted value corresponding to colour component to be predicted. | 2022-08-04 |
20220248002 | IMAGE ENCODING/DECODING IMAGE METHOD AND DEVICE, AND RECORDING MEDIUM STORING BIT STREAM - An image encoding/decoding method and apparatus are provided. An image encoding method performed by an image encoding apparatus may comprise determining an intra-prediction mode of a current block, configuring a reference sample of intra prediction by using at least one of a neighbor pixel of the current block in a current picture and a pixel of a reference picture, and performing intra prediction for the current block based on the intra-prediction mode and the reference sample. | 2022-08-04 |
20220248003 | UNEQUAL WEIGHT PLANAR MOTION VECTOR DERIVATION - A system and method of planar motion vector derivation which, in some embodiments can employ an unequal weighted combination of adjacent motion vectors. In some embodiments, motion vector information associated with a bottom right pixel or block adjacent to a current coding unit can be derived from motion information associated with a top row or top neighboring row of a current coding unit and motion information associated with a left column or left neighboring column of a current coding unit. Weighted or non-weighted combinations of such values can be combined in a planar mode prediction model to derive associated motion information for bottom and/or right adjacent pixels or blocks. | 2022-08-04 |
20220248004 | ENCODING METHOD AND DECODING METHOD, AND DEVICE USING SAME - The present invention relates to an encoding method and decoding method, and a device using the same. The encoding method according to the present invention comprises the steps of: specifying an intra prediction mode for a current block; and scanning a residual signal by intra prediction of the current block, wherein the step of scanning the residual signal can determine a scanning type for a luminance signal and a chroma signal of the current block according to an intra prediction mode for a luminance sample of the current block. | 2022-08-04 |
20220248005 | METHOD AND APPARATUS FOR PROCESSING VIDEO - Systems and methods are described for processing video content. Content may be encoded/transcoded for delivery to a computing device that requested the content. The content may be encoded as temporally interlaced blocks, which interlaces frames over time. Because the frames are temporally interlaced, the computing device may be able to decode and play back a full-length or complete video at a reduced quality even if every temporally interlaced block was not received by the computing device, such as when network bandwidth is low or the network connection is disrupted. Receiving only a portion of the temporally interlaced blocks may be still be sufficient to display a full-length video at a reduced quality (e.g., at a reduced bit rate). | 2022-08-04 |
20220248006 | ADAPTIVE IN-LOOP FILTERING METHOD AND APPARATUS - Disclosed herein is a video decoding method including acquiring adaptation parameter sets including an adaptive in-loop filter (ALF) set including a plurality of ALFs, determining an adaptation parameter set applied to a current picture or slice and including an ALF set applied to the current picture or slice, from among the adaptive parameter sets, determining an adaptation parameter set applied to a current coding tree block (CTB) and including an ALF set applied to the current CTB included in the current picture or slice, from the adaptation parameter set applied to the current picture or slice, and filtering the current CTB based on the ALF set of the determined adaptation parameter set applied to the current CTB, wherein the acquired adaptation parameter sets include chroma ALF number information, and wherein the ALF set includes chroma ALFs, the number of which is indicated by the chroma ALF number information. | 2022-08-04 |
20220248007 | SYSTEMS AND METHODS FOR REDUCING A RECONSTRUCTION ERROR IN VIDEO CODING BASED ON A CROSS-COMPONENT CORRELATION - A method of filtering reconstructed video data is disclosed. The method comprising: inputting reconstructed luma component sample values; deriving a filtered sample value by using cross component filter coefficients and the reconstructed luma component sample values prior to an adaptive loop filtering process; deriving a refinement value for chroma components by using the filtered sample value; and deriving a refined chroma sample value by using a sum of a sample value of chroma components and the refinement value for chroma components. | 2022-08-04 |
20220248008 | METHOD AND APPARATUS FOR ENCODING/DECODING AN IMAGE BASED ON IN-LOOP FILTER - An image encoding/decoding method and apparatus of the present invention may divide one picture into a plurality of division units, determine whether to perform filtering on a boundary of a current division unit based on a predetermined flag, and perform filtering on the boundary of the current division unit in response to the determination. | 2022-08-04 |
20220248009 | SIZE RESTRICTION BASED FOR CHROMA INTRA MODE - A method of video processing is described. The method includes performing a conversion between a chroma block of a video region of a video picture of a video and a coded representation of the video according to a rule; wherein the rule specifies that, due to the chroma block having a size M×N, the chroma block is disallowed to be represented in the coded representation using an intra coding mode, wherein M and N are integers that indicate a width and a height of the chroma block respectively, and wherein the intra coding mode includes coding the chroma block based on a previously coded video region of the video picture. | 2022-08-04 |
20220248010 | Encoder and Decoder, Encoding Method and Decoding Method for Versatile Spatial Partitioning of Coded Pictures - A video decoder for decoding an encoded video signal including encoded picture data and indication data of a picture of a video to reconstruct the picture of the video is provided. The video decoder includes an interface configured for receiving the encoded video signal, and a data decoder configured for reconstructing the picture of the video by decoding the encoded picture data using the indication data. The picture is partitioned into a plurality of coding areas. One or more coding areas of the plurality of coding areas include two or more coding tree units of the plurality of coding tree units, wherein each coding area of the one or more coding areas which includes two or more coding tree units exhibits a coding order for the two or more coding tree units of the coding area. | 2022-08-04 |
20220248011 | ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD - Provided is an encoder which includes circuitry and memory. The circuitry encodes an image block using the memory. In encoding the image block, the circuitry: obtains one or more size parameters related to a size of the image block; determines whether the one or more size parameters and one or more thresholds satisfy a determined relationship; encodes a split parameter when the one or more size parameters and the one or more thresholds are determined to satisfy the determined relationship, the split parameter indicating whether the image block is to be split into a plurality of partitions including a non-rectangular partition; and encodes the image block after splitting the image block into the plurality of partitions when the split parameter indicates that the image block is to be split into the plurality of partitions. | 2022-08-04 |
20220248012 | METHOD AND APPARATUS FOR INTRA SUB-PARTITIONS CODING MODE - Apparatuses and methods for Intra Sub-Partitions (ISP) are provided. The method includes: obtaining information of ISP, and determining a size of a chroma transform block (TB) of the coding unit based on SubWidthC and SubHeightC when at least a first condition is fulfilled. The first condition includes the information of ISP indicates that ISP is used for splitting the luma coding block. SubWidthC and SubHeightC are variables depending on chroma format information. The chroma format information indicates a chroma format of a picture the coding unit belongs to. The method can apply to all chroma format. The chroma format includes at least one of: 4:2:0, or 4:2:2, or 4:4:4. An accurate and versatile way to determine the size of the chroma transform block for the ISP is achieved. | 2022-08-04 |
20220248013 | ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD - Provided is an encoder which includes circuitry and memory. Using the memory, the circuitry splits an image block into a plurality of partitions, obtains a prediction image for a partition, and encodes the image block using the prediction image. When the partition is not a non-rectangular partition, the circuitry obtains (i) a first prediction image for the partition, (ii) a gradient image for the first prediction image, and (iii) a second prediction image as the prediction image using the first prediction image and the gradient image. When the partition is a non-rectangular partition, the circuitry obtains the first prediction image as the prediction image without using the gradient image. | 2022-08-04 |
20220248014 | ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD - Provided is an encoder which includes circuitry and memory. Using the memory, the circuitry splits an image block into a plurality of partitions, obtains a prediction image for a partition, and encodes the image block using the prediction image. When the partition is not a non-rectangular partition, the circuitry obtains (i) a first prediction image for the partition, (ii) a gradient image for the first prediction image, and (iii) a second prediction image as the prediction image using the first prediction image and the gradient image. When the partition is a non-rectangular partition, the circuitry obtains the first prediction image as the prediction image without using the gradient image. | 2022-08-04 |
20220248015 | ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD - Provided is an encoder which includes circuitry and memory. The circuitry encodes an image block using the memory. In encoding the image block, the circuitry: obtains one or more size parameters related to a size of the image block; determines whether the one or more size parameters and one or more thresholds satisfy a determined relationship; encodes a split parameter when the one or more size parameters and the one or more thresholds are determined to satisfy the determined relationship, the split parameter indicating whether the image block is to be split into a plurality of partitions including a non-rectangular partition; and encodes the image block after splitting the image block into the plurality of partitions when the split parameter indicates that the image block is to be split into the plurality of partitions. | 2022-08-04 |
20220248016 | ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD - Provided is an encoder which includes circuitry and memory. Using the memory, the circuitry splits an image block into a plurality of partitions, obtains a prediction image for a partition, and encodes the image block using the prediction image. When the partition is not a non-rectangular partition, the circuitry obtains (i) a first prediction image for the partition, (ii) a gradient image for the first prediction image, and (iii) a second prediction image as the prediction image using the first prediction image and the gradient image. When the partition is a non-rectangular partition, the circuitry obtains the first prediction image as the prediction image without using the gradient image. | 2022-08-04 |
20220248017 | IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM STORING BITSTREAM - Disclosed herein is an image encoding/decoding method and apparatus based on transform. An image decoding method includes determining a horizontal transform type and a vertical transform type of a current block, deriving a residual block of the current block by performing inverse transform with respect to the current block based on the determined horizontal transform type and vertical transform type, and reconstructing the current block based on the residual block. The determining of the horizontal transform type and the vertical transform type is performed based on at least one of a width or a height of the current block regardless of an intra prediction mode of the current block, when the current block is in an intra sub-block partitions (ISP) mode. | 2022-08-04 |
20220248018 | TRANSFORM-BASED IMAGE CODING METHOD AND DEVICE THEREFOR - An image decoding method according to the present document comprises a step for performing inverse first-order transform and inverse non-separable transform on a residual sample. The inverse non-separable transform is performed on the basis of a transform index indicating a predetermined transform kernel matrix, the inverse first-order transform is performed on the basis of a multiple transform selection (MTS) index indicating MTS for a horizontal transform kernel and a vertical transform kernel, and a syntax element bin string for the transform index is derived on the basis of first context information when a tree type for a split structure of a target block is not a single tree type and is derived on the basis of second context information when the tree type is the single tree type. | 2022-08-04 |
20220248019 | VIDEO DECODING METHOD AND APPARATUS, AND VIDEO ENCODING METHOD AND APPARATUS - Provided are a video decoding method and apparatus including: in a video encoding and decoding process, determining parity information of a current block based on a width and a height of the current block; determining a lookup table of the current block from among a plurality of predefined lookup tables based on the parity information; determining a dequantization scale value of the current block based on the lookup table of the current block; and performing dequantization on the current block by using the dequantization scale value. | 2022-08-04 |
20220248020 | VIDEO DECODING METHOD AND APPARATUS, AND VIDEO ENCODING METHOD AND APPARATUS - Provided are a video decoding method and apparatus including: in a video encoding and decoding process, determining parity information of a current block based on a width and a height of the current block; determining a lookup table of the current block from among a plurality of predefined lookup tables based on the parity information; determining a dequantization scale value of the current block based on the lookup table of the current block; and performing dequantization on the current block by using the dequantization scale value. | 2022-08-04 |
20220248021 | FLEXIBLE QUANTIZATION - A digital media encoder/decoder uses a flexible quantization technique that provides the ability to vary quantization along various dimensions of the encoded digital media data, including spatial, frequency sub bands and color channels. The codec utilizes a signaling scheme to signal various permutations of flexible quantization combinations efficiently for primary usage scenarios. When a choice of quantizer is available, the codec efficiently encodes the current quantizer by defining a subset of quantizers and indexes the current quantizer from the set. | 2022-08-04 |
20220248022 | FLEXIBLE QUANTIZATION - A digital media encoder/decoder uses a flexible quantization technique that provides the ability to vary quantization along various dimensions of the encoded digital media data, including spatial, frequency sub bands and color channels. The codec utilizes a signaling scheme to signal various permutations of flexible quantization combinations efficiently for primary usage scenarios. When a choice of quantizer is available, the codec efficiently encodes the current quantizer by defining a subset of quantizers and indexes the current quantizer from the set. | 2022-08-04 |
20220248023 | CODING METHOD AND SYSTEM WITH IMPROVED TRANSFORM DOMAIN COEFFICIENT COMPUTATION - A video encoding method includes obtaining a video bitstream; encoding the video bitstream based on a residual coding scheme and signaling information; and outputting the encoded video bitstream. Encoding the video bitstream includes: obtaining residual information associated with the video bitstream, wherein the residual information includes at least a remainder; obtaining a transform coefficient based on a current state, a Rice parameter, and a next state; and encoding the residual information based on the transform coefficient. | 2022-08-04 |
20220248024 | IMAGE DATA ENCODING AND DECODING - An image data encoding apparatus includes an entropy encoder configured to selectively encode data items representing image data by an encoding system selected from a context adaptive binary arithmetic coding (CABAC) encoding system and a bypass encoding system. The data items include (i) a first data item indicating whether a multi-direction linear model (MDLM) chroma mode applies to a current image region; and (ii) a second data item indicating a processing direction for operation of the MDLM chroma mode. The entropy encoder encodes instances of the first data item and instances of the second data item independently of the encoding of instances of the first data item. | 2022-08-04 |
20220248025 | METHODS AND APPARATUSES FOR CROSS-COMPONENT PREDICTION - Example implementations include a method, apparatus and computer-readable medium of video coding, comprising receiving the code block and one or more neighbor samples and determining the value of beta based on at least one of an average chroma value, a midrange chroma value, a median chroma value, an average luma value, a midrange luma value, or a median luma value of two or more neighbor samples. | 2022-08-04 |
20220248026 | SUB-BLOCK DIVISION-BASED IMAGE ENCODING/DECODING METHOD AND DEVICE - Disclosed herein are a video encoding/decoding method and apparatus. The video decoding method of the present disclosure includes: obtaining block partitioning information of a current block; based on the block partitioning information, partitioning the current block into a first sub-block and a second sub-block; deriving motion information of the first sub-block and notion information of the second sub-block respectively; based on the notion information of the first sub-block and the motion information of the second sub-block, generating a prediction sample of the first sub-block and a prediction sample of the second sub-block respectively; and through a weighted-sum of the prediction sample of the first sub-block and the prediction sample of the second sub-block, generating a prediction sample of the current block. Herein, the block partitioning information is index information indicating an index of a table including information indicating a plurality of predefined asymmetric partition shapes. | 2022-08-04 |
20220248027 | IMAGE CODING METHOD BASED ON TRANSFORM, AND DEVICE THEREFOR - An image decoding method includes a step of deriving a modified transform coefficient, wherein the step of deriving the modified transform coefficient includes the steps of: deriving a first variable indicating whether the transform coefficient exists in an area excluding a DC location of the current block; parsing an LFNST index based on the derivation result; and deriving the modified transform coefficient based on the LFNST index and an LFNST matrix, and based on the fact that the current block is divided into a plurality of sub-partition blocks, the LFNST index can be parsed without deriving the first variable. | 2022-08-04 |
20220248028 | VIDEO DECODING METHOD AND APPARATUS, AND VIDEO ENCODING METHOD AND APPARATUS FOR PERFORMING INTER PREDICTION ACCORDING TO AFFINE MODEL - A video decoding method includes, determining a center motion vector of a current block by using a base motion vector of the current block based on affine model-based inter-prediction being performed in the current block, determining a reference range of an area to be referred to, with respect to the current block, based on a size of the current block, based on a reference area having a size of the reference range with respect to a point in a reference picture of the current block, the point being indicated by a central motion vector of the current block, deviating from or including a boundary of the reference picture, changing the reference area by parallelly translating the reference area into a current picture, and determining prediction samples of sub-blocks of the current block in the changed reference area from the reference picture. | 2022-08-04 |
20220248029 | IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM FOR STORING BITSTREAM - Disclosed herein are an image encoding/decoding method and apparatus, and a recording medium storing a bitstream. The image decoding method according to the present invention includes: deriving slice mode information for at least one slice comprised in a current picture; deriving information on the number of slices based on the slice mode information; deriving tile information of a current slice based on the information on the number of slices; and, decoding the current slice based on the tile information. Herein, the tile information includes tile index presence information and tile index difference value information, and the tile index difference value information is not signaled for a last slice included in the current picture. | 2022-08-04 |
20220248030 | METHOD AND APPARATUS FOR CODING VIDEO DATA IN PALETTE MODE - The present disclosure provides apparatuses and methods for performing palette coding of video data. According to certain disclosed embodiments, the methods include: determining whether a luma component of a coding unit (CU) and chroma components of the CU are coded jointly or separately in a palette mode; and in response to the luma component and the chroma components being coded jointly in the palette mode, determining a first maximum palette-table size for the CU; determining a first maximum palette-predictor size for the CU; and predicting the CU based on the first maximum palette-table size and the first maximum palette-predictor size. | 2022-08-04 |
20220248031 | METHODS AND DEVICES FOR LOSSLESS CODING MODES IN VIDEO CODING - Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for decoding a video signal. A decoder partitions a video picture into a plurality of coding units (CUs) comprising a lossless CU. The decoder may further receive a high-level syntax. The high-level syntax may include, for example, a first flag that indicates whether a residual coding scheme is switchable. | 2022-08-04 |
20220248032 | METHODS FOR INTRA PREDICTION, ENCODER AND DECODER - A method for intra prediction includes: obtaining multiple previously reconstructed neighbouring blocks corresponding to a current processing block; determining prediction modes, that are signalled in a bitstream, corresponding to neighbouring blocks of the multiple previously reconstructed neighbouring blocks, to obtain multiple first prediction modes; if the multiple first prediction modes comprise at least two directional modes, taking directional modes comprised in the multiple first prediction modes as first prediction directions; performing, according to a preset operation rule, operation on multiple first prediction directions of the first prediction directions to obtain second prediction directions; obtaining a prediction mode set according to the second prediction directions and the multiple first prediction modes: and performing intra prediction on the current processing block based on the prediction mode set. | 2022-08-04 |
20220248033 | ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD USING HORIZONTAL AND VERTICAL GRADIENTS FOR PREDICTION - An encoder includes circuitry and memory connected to the circuitry. The circuitry: derives an absolute value of a sum of gradient values in first and second ranges; derives, as a first parameter, a total sum of absolute values of sums of gradient values derived respectively for pairs of relative pixel positions; derives a pixel difference value between pixel values in the first and second ranges; inverts or maintains a plus or minus sign of the pixel difference value, according to a plus or minus sign of the sum of the gradient values indicating the sum of the gradient values in the first and second ranges; derives, as a second parameter, a total sum of pixel difference values each having the plus or minus sign inverted or maintained, the pixel difference values derived respectively for the relative pixel positions; and generates a prediction image using the first and second parameters. | 2022-08-04 |
20220248034 | IMAGE DECODING METHOD USING BDPCM AND DEVICE THEREFOR - An image decoding method performed by a decoding apparatus according to the present document comprises the steps of: deriving prediction samples for a first sample and a second sample of the current block on the basis of BDPCM-related information about the current block and neighboring samples of the current block; deriving residual samples for the first sample and the second sample on the basis of a residual coefficient of the first sample and a modified residual coefficient of the second sample; and storing, as the intra prediction mode of the current block, the intra prediction mode in the prediction direction of the current block, which is derived on the basis of a BDPCM direction flag. | 2022-08-04 |
20220248035 | AFFINE LINEAR WEIGHTED INTRA PREDICTION IN VIDEO CODING - A video coder performs a Most-Probable Mode (MPM) derivation process that derives one or more MPMs for a current block that is not coded using affine linear weighted intra prediction (ALWIP). As part of performing the MPM derivation process, the video coder determines whether a neighboring block of the current block is an ALWIP-coded neighboring block. Based on the neighboring block being an ALWIP-coded neighboring block, the video coder determines that a value of an intra prediction mode of the neighboring block is a value indicating a planar mode. The video coder codes the current block based on one of the MPMs for the current block. | 2022-08-04 |
20220248036 | METHOD FOR DECODING IMAGE ON BASIS OF CCLM PREDICTION IN IMAGE CODING SYSTEM, AND DEVICE THEREFOR - A video decoding method performed by a decoding apparatus according to the present disclosure includes deriving one of a plurality of cross-component linear model (CCLM) prediction mode as a CCLM prediction mode of the current chroma block, deriving a sample number of neighboring chroma samples of the current chroma block based on the CCLM prediction mode of the current chroma block, a size of the current chroma block, and a specific value; deriving the neighboring chroma samples of the sample number, calculating CCLM parameters based on the neighboring chroma samples and the down sampled neighboring luma samples, deriving prediction samples for the current chroma block based on the CCLM parameters and the down sampled luma samples and generating reconstructed samples for the current chroma block based on the prediction samples, wherein the specific value is derived as 2. | 2022-08-04 |
20220248037 | METHODS AND SYSTEMS FOR CHROMA RESIDUAL DATA PREDICTION - Several methods and systems for chroma residual data prediction for encoding blocks corresponding to video data are disclosed. In an embodiment, at least one coefficient correlating reconstructed luma residual samples and corresponding reconstructed chroma residual samples is computed for one or more encoded blocks of video data. Predicted chroma residual samples are generated for encoding a block of video data based on corresponding reconstructed luma residual samples and the at least one coefficient. | 2022-08-04 |
20220248038 | RATE CONTROL IN VIDEO CODING - A method of rate control in coding of a video sequence to generate a compressed bit stream is provided that includes computing a sequence base quantization step size for a sequence of pictures in the video sequence, computing a picture base quantization step size for a picture in the sequence of pictures based on the sequence base quantization step size, a type of the picture, and a level of the picture in a rate control hierarchy, and coding the picture using the picture base quantization step size to generate a portion of the compressed bit stream. | 2022-08-04 |
20220248039 | IMAGE DECODING METHOD, IMAGE CODING METHOD, IMAGE DECODING APPARATUS, IMAGE CODING APPARATUS, AND IMAGE CODING AND DECODING APPARATUS - The image decoding method includes determining a context for use in a current block to be processed, from among a plurality of contexts, wherein in the determining: the context is determined under a condition that control parameters of a left block and an upper block are used, when the signal type is a first type; and the context is determined under a third condition that the control parameter of the upper block is not used and a hierarchical depth of a data unit to which the control parameter of the current block belongs is used, when the signal type is a third type, and the third type is one or more of (i) “merge_flag”, (ii) “ref_idx_I0” or “ref_idx_I1”, (iii) “inter_pred_flag”, (iv) “mvd_I0” or “mvd_I1”, (v) “intra_chroma_pred_mode”, (vi) “cbf_luma”, and (vii) “cbf_cb” or “cbf_cr”. | 2022-08-04 |