43rd week of 2021 patent applcation highlights part 74 |
Patent application number | Title | Published |
20210337132 | IMAGING APPARATUS AND RECORDING MEDIUM - An imaging apparatus includes an imaging device and a processor. The processor is configured to determine brightness of an image when the imaging apparatus is operating in a second operation mode. The processor is configured to increase imaging sensitivity of the imaging device when the processor determines that the brightness is darker than or equal to a first brightness. The processor is configured to cause the imaging apparatus to operate in a first operation mode when the processor determines that the brightness is darker than or equal to a second brightness darker than the first brightness after the processor increases the imaging sensitivity. | 2021-10-28 |
20210337133 | METHOD, APPARATUS AND COMPUTER PROGRAM FOR GENERATING AND DISPLAYING A HEATMAP BASED ON VIDEO SURVEILLANCE DATA - A computer implemented method for displaying data in the form of a heatmap comprises generating and displaying a first heatmap based on a first dataset of video surveillance data, receiving a user input selecting an area of the first heatmap, generating and displaying a second heatmap based on a second dataset of video surveillance data, wherein the second dataset is a subset of the first dataset which is limited only based on the area selected by the user, and wherein the step of generating and displaying the second heatmap comprises recalibrating a colour range based on the second dataset. | 2021-10-28 |
20210337134 | USER INTERFACE FOR VISUALLY INDICATING BUFFERED AMOUNT OF VIDEO - An image capture device may buffer video footage in a memory buffer before a command to record video is received. The image capture device may present a progression of color along a path to reflect the amount of buffered video footage. When the command to record the video is received, the video may be generated to include both buffered video footage and the video footage captured after the command. | 2021-10-28 |
20210337135 | IMAGING APPARATUS, VEHICLE AND IMAGE CAPTURING METHOD - An imaging apparatus mountable on a moveable apparatus includes a plurality of lighting-imaging units, each configured to capture an image of a different area on an object in a direction intersecting with a movement direction of the moveable apparatus. The each of the plurality of lighting-imaging units includes a light source unit configured to illuminate a partial area on the object as a lighting area; and an image capture unit configured to capture an image of an image capture area set within the lighting area. The plurality of lighting-imaging units captures an image of a non-overlapped lighting area on the object where the lighting areas of the plurality of lighting-imaging units do not overlap with each other. | 2021-10-28 |
20210337136 | METHOD AND APPARATUS FOR PROCESSING VIDEO, AND STORAGE MEDIUM - A method for processing a video includes: identifying a target object in a first video segment; acquiring a current video frame of a second video segment; acquiring a first image region corresponding to the target object in a first target video frame of the first video segment, and acquiring a second image region corresponding to the target object in the current video frame of the second video segment, wherein the first target video frame corresponds to the current video frame of the second video segment in terms of video frame time; and performing picture splicing on the first target video frame and the current video frame of the second video segment according to the first image region and the second image region to obtain a processed first video frame. | 2021-10-28 |
20210337137 | METHOD AND DEVICE FOR SHOOTING IMAGE, AND STORAGE MEDIUM - A method for shooting image, applied to an electronic device in which an image capturing device is mounted, includes: receiving a first input from a user; responsive to the first input, acquiring a first image and a second image captured by the image capturing device for a target object, a framing range of the first image being same as a framing range of the second image; and performing synthesis processing on the first image and the second image to generate a target image, the target image including a first object image of the target object in the first image and a second object image of the target object in the second image. | 2021-10-28 |
20210337138 | METHOD AND APPARATUS FOR CONTROLLING A PLURALITY OF VIRTUAL CHARACTERS, DEVICE, AND STORAGE MEDIUM - This application discloses a method for controlling a plurality of virtual characters in an application with an augmented reality (AR) function running in the a terminal. The method includes: displaying a first user interface of the application, the first user interface comprising a plurality of virtual characters for user selection; receiving a first user selection operation on at least two virtual characters on the first user interface; displaying a second user interface of the application, the second user interface including a background picture of a real world and the at least two virtual characters located in the background picture; receiving a second user selection operation on the second user interface; and determining a target virtual character from the at least two virtual characters according to the second user selection operation and the rendering sequence. | 2021-10-28 |
20210337139 | TELEVISION VIDEO AND/OR AUDIO OVERLAY ENTERTAINMENT DEVICE AND METHOD - An entertainment device provides multiple users with the ability to simultaneously select and place various still or video images or animations over a video transmission provided to a television from a cable box, antenna, video streaming device, or other video supply device for personal entertainment purposes. The image overlay can be provided in real-time or substantially in real-time, such as with minimal delay. The entertainment device may further provide the ability to overlay audio onto, or replace entirely, the audio signal supplied with the video signal. The entertainment device may be provided, for instance, as a stand-alone unit, or may be integrated into a cable box or other video supply device (i.e., dvd player, blu-ray player, cell phone, tablet, computer, streaming device, etc.). | 2021-10-28 |
20210337140 | OPTICAL DEVICE FOR A THERMAL SENSOR AND A HYBRID THERMAL SENSOR - An imaging device includes: a sensor to detect a first target spectrum, the first target spectrum corresponding to a thermal imaging region of an infrared (IR) spectrum; and an optical device to transmit external light to the sensor, the optical device including: a substrate; and a plurality of nanostructures on the substrate, and to collimate at least the first target spectrum in the external light on the sensor. The plurality of nanostructures are spaced apart from each other, and at least one of the plurality of nanostructures has a different geometric size from that of another. | 2021-10-28 |
20210337141 | IMAGING UNIT, IMAGING APPARATUS, AND COMPUTER READABLE MEDIUM STORING THEREON AN IMAGING CONTROL PROGRAM - When the amplification ratio is low and strong incident light causes a large charge, the signal retrieved from regions where the incident light is weak is also weak, but when the amplification ratio is high in regions where the incident light is weak, the signal retrieved from regions where the incident light is strong becomes saturated. Therefore, the dynamic range of the imaging unit is narrow. Provided is an imaging unit comprising an imaging section that includes a first group having one or more pixels and a second group having one or more pixels different from those of the first group; and a control section that, while a single charge accumulation is performed in the first group, causes pixel signals to be output by performing charge accumulation in the second group a number of times differing from a number of times charge accumulation is performed in the first group. | 2021-10-28 |
20210337142 | IMAGE-CAPTURING UNIT AND IMAGE-CAPTURING APPARATUS - An image-capturing unit includes: an image-capturing chip; a power supply circuit unit that outputs electrical power to be fed to the image-capturing chip; a power supply line that feeds electrical power from the power supply circuit unit to the image-capturing chip; a disconnecting unit that is provided to the power supply line and is electrically disconnecting the power supply circuit unit and the image-capturing chip when a leakage current of the image-capturing chip is measured; and an implementation substrate on which the power supply circuit unit, the image-capturing chip, the power supply line and the disconnecting unit are implemented. | 2021-10-28 |
20210337143 | Image-Sensing System and Detection and Correction Method for Defective Pixel - An image-sensing system for the efficient detection of defective pixels is shown. An arithmetic logic unit (ALU) determines a defective pixel candidate of an image sensor based on the first frame captured by the image sensor, performs a lower-part comparison on the defective pixel candidate based on the first frame, and performs an upper-part comparison on the defective pixel candidate based on the second frame captured by the image sensor. The defective pixel candidate is confirmed to be defective based on the first frame as well as the second frame. Only limited pixel data is buffered for the defective pixel detection. | 2021-10-28 |
20210337144 | FLEXIBLE EXPOSURE CONTROL FOR IMAGE SENSORS WITH PHASE DETECTION AUTO FOCUS PIXELS - An imaging device includes a photodiode array. The photodiodes include a first set of photodiodes configured as image sensing photodiodes and a second set of photodiodes configured as phase detection auto focus (PDAF) photodiodes. The PDAF photodiodes are arranged in at least pairs in neighboring columns and are interspersed among the image sensing photodiodes. Transfer transistors are coupled to corresponding photodiodes. The transfer transistors coupled to the image sensing photodiodes included in an active row of are controlled in response to a first transfer control signal or a second transfer control signal that control all of the image sensing photodiodes of the active row. A transfer transistor is coupled to one of a pair of the PDAF photodiodes of the active row. The first transfer transistor is controlled in response to a first PDAF control signal that is independent of the first or second transfer control signals. | 2021-10-28 |
20210337145 | Array Sensor, Method for Forming and Operating the Same - An array sensor and a method for forming and operating the same are provided. The array sensor includes: a sensor circuit including an array of pixel units that includes N rows of pixel units; and a driving circuit including at least N rows of shifting units; where the driving circuit further includes: a first global clearing signal line connected with odd rows of shifting units, a signal of which being applied to trigger the odd rows of shifting units to simultaneously turn on odd rows of pixel units, so that the odd rows of pixel units simultaneously discharge residual charge; and a second global clearing signal line connected with even rows of shifting units, a signal of which being applied to trigger the even rows of shifting units to simultaneously turn on even rows of pixel units, so that the even rows of pixel units simultaneously discharge residual charge. | 2021-10-28 |
20210337146 | IMAGING APPARATUS AND ELECTRONIC EQUIPMENT - The present technology relates to an imaging apparatus and electronic equipment that can reduce noise. A photoelectric conversion element, a conversion unit that converts a signal from the photoelectric conversion element into a digital signal, a bias circuit that supplies a bias current for controlling a current flowing through an analog circuit in the conversion unit, and a control unit that controls the bias circuit on the basis of an output signal from the conversion unit are provided, and at the start of transfer of a charge from the photoelectric conversion element, the control unit boosts a voltage at a predetermined position of the analog circuit. The conversion unit converts the signal from the photoelectric conversion element into a digital signal using a slope signal whose level monotonously decreases with time. The present technology is applicable to, for example, an imaging apparatus. | 2021-10-28 |
20210337147 | IMAGE SENSOR WITH ANALOG BINNED READOUT OF IMAGE SENSING PHOTODIODES WITH PHASE DETECTION PHOTODIODES - An imaging device includes a first pixel circuit having a first plurality of photodiodes that includes a phase detection autofocus photodiode with image sensing photodiodes. A first buffer transistor having a first threshold voltage is coupled to the first plurality of photodiodes to generate a first output signal. A second pixel circuit is included having a second plurality of photodiodes that are all image sensing photodiodes. A second buffer transistor having a second threshold voltage is coupled to the second plurality of photodiodes to generate a second output signal. The first threshold voltage is less than the second threshold voltage. A driver is coupled to receive a combination of the first and second output signals to generate a total output signal. An influence of the first output signal dominates the second output signal in the total output signal because the first threshold voltage is less than the second threshold voltage. | 2021-10-28 |
20210337148 | PING PONG READOUT STRUCTURE IN IMAGE SENSOR WITH DUAL PIXEL SUPPLY - An image sensor includes a pixel array having a plurality pixels arranged in a plurality of pixel clusters coupled to a plurality of column busses, a plurality of voltage supplies coupled to the plurality of pixel clusters, and ping-pong readout circuitry. Pixel clusters in adjacent column busses are supplied with different voltage supplies. The ping-pong readout circuitry includes multiplexing circuitry coupled to the plurality of column busses, and a plurality of analog-to-digital converters coupled to the multiplexing circuitry. The image sensor also includes a controller configured to selectively couple a pixel signal of a pixel cluster to a column bus to an ADC for signal conversion. | 2021-10-28 |
20210337149 | IMAGING SYSTEM WITH TIME-OF-FLIGHT SENSING - A time-of-flight (TOF) sensing system may include an illumination module and a sensor module. The sensor module may include an array of sensor pixels, pixel-level readout circuitry, and column-level readout circuitry coupled to the pixel-level readout circuitry via corresponding column lines. Pixel-level readout circuitry may be provided on a per-pixel basis (e.g., dedicated or unshared per-pixel readout circuitry may be provided for each pixel). Pixel-level readout circuitry may include one or more correlated double sampling stages and a storage stage. The storage stage may include a set of capacitors each configured to store different phase data generated by a corresponding pixel for a TOF sensing operation. | 2021-10-28 |
20210337150 | EVENT-DRIVEN IMAGE SENSOR AND METHOD OF READING THE SAME - The present disclosure relates to an event-driven sensor comprising: a pixel array ( | 2021-10-28 |
20210337151 | Dynamic Vision Sensor Architecture - A dynamic vision sensor (DVS) or change detection sensor reacts to changes in light intensity and in this way monitors how a scene changes. This disclosure covers both single pixel and array architectures. The DVS may contain one pixel or 2-dimensional or 1-dimensional array of pixels. The change of intensities registered by pixels are compared, and pixel addresses where the change is positive or negative are recorded and processed. Analyzing frames based on just three values for pixels, increase, decrease or unchanged, the proposed DVS can process visual information much faster than traditional computer vision systems, which correlate multi-bit color or gray level pixel values between successive frames. | 2021-10-28 |
20210337152 | IMAGE SENSOR, IMAGE-CAPTURING APPARATUS, AND SEMICONDUCTOR MEMORY - A first circuit constituting a plurality of first circuit in a first direction, which stores a signal output from a pixel having a photoelectric conversion unit; a first control unit to which the plurality of first circuits are connected and outputs a first signal for outputting signals stored in the plurality of first circuits; a readout unit that reads out the signal output from the first circuit; a plurality of second circuits that are connected to the first control unit, a plurality of sets of the plurality of second circuits in the first direction; and a second control unit that controls a readout of the signal by the readout unit. The first control unit outputs a second signal to the plurality of second circuits together with the first signal; and the second control unit controls the readout of the signal by the readout unit, based on the second signal. | 2021-10-28 |
20210337153 | IMAGE PROCESSING DEVICE AND MOBILE COMPUTING DEVICE HAVING THE SAME - In an example embodiment, an image processing device includes a pixel array including pixels two-dimensionally arranged and configured to capture an image, each of the pixels including a plurality of photoelectric conversion elements and an image data processing circuit configured to generate image data from pixel signals output from the pixels. The image processing device further includes a color data processing circuit configured to extract color data from the image data and output extracted color data. The image processing device further includes a depth data extraction circuit configured to extract depth data from the image data and output extracted depth data. The image processing device further includes an output control circuit configured to control the output of the color data and the depth data. | 2021-10-28 |
20210337154 | IMAGE SENSOR, PIXEL ARRAY, AND OPERATION METHOD OF THE IMAGE SENSOR - An image sensor includes a pixel array including a first pixel and a second pixel which are connected to a first column line, and a row driver configured to control a read operation of the second pixel. A voltage of the first column line is determined based on a higher voltage among a voltage of a floating diffusion node of the first pixel and a voltage of a floating diffusion node of the second pixel during the read operation of the second pixel. | 2021-10-28 |
20210337155 | PIXEL ARRAY AND IMAGE SENSOR INCLUDING THE SAME - A pixel array and an image sensor are provided. The image sensor includes a substrate, a pixel array of pixels, each pixel including a pixel circuit and a pixel conversion device. The pixel circuit is formed in a pixel area corresponding to the pixel in the substrate. The pixel conversion device is arranged on the substrate to vertically overlap the pixel circuit. The pixel circuit includes a floating diffusion node, a reset switching device, and an amplifier including a load device and a plurality of switching devices, the load device being arranged in the pixel area. | 2021-10-28 |
20210337156 | IMAGING ELEMENT, DRIVING METHOD, AND ELECTRONIC EQUIPMENT - The present disclosure relates to an imaging element, a driving method, and electronic equipment that enable imaging to be performed at higher speed. The imaging element includes a pixel array in which a plurality of pixels are arranged in a matrix shape, an AD converter that performs AD conversion in parallel on pixel signals that have been output from the plurality of pixels for each column of the plurality of pixels arranged in the pixel array, and a reference signal generator that generates a reference signal that the AD converter refers to when the AD converter performs AD conversion on a pixel signal for an identical pixel signal, the reference signal having a waveform that includes a slope having a constant gradient. Then, when the AD converter performs, on the identical pixel signal, multi-sampling for performing sampling during a P-phase period and sampling during a D-phase period at least once or more, the reference signal generator generates a reference signal in which, from among a plurality of slopes during the D-phase period, a sampling period of a second slope has been set to be shorter than a sampling period of a first slope. The present technology is applicable, for example, to a CMOS image sensor including a column-parallel ADC. | 2021-10-28 |
20210337157 | IMAGING APPARATUS FOR USE IN A ROBOTIC SURGERY SYSTEM - A stereoscopic imaging apparatus for use in a robotic surgery system is disclosed and includes an elongate sheath having a bore. First and second image sensors are adjacently mounted at the distal end to capture high definition images from different perspective viewpoints for generating three-dimensional image information. The image sensors produce an unprocessed digital data signal representing the captured images. A wired signal line transmits the unprocessed digital data signals along the sheath to a proximal end to processing circuitry. The processing circuitry is configured to perform processing operations on the unprocessed digital data signals to produce respective video signals suitable for transmission to a host system or for driving a 3D display. A secondary camera is also disclosed and includes an elongate strip of circuit substrate sized for insertion through a narrow conduit, the strip of circuit substrate connecting between an image sensor and a processing circuit substrate. | 2021-10-28 |
20210337158 | CONTROLLING A PAN-TILT-ZOOM CAMERA - Methods and apparatus, including computer program products, for controlling a Pan-Tilt-Zoom (PTZ) camera. A video stream is provided by the PTZ camera. The video stream includes a main image and a smaller picture-in-picture overlay. The main image and the overlay show the same view. The overlay has both a higher frame rate and a lower resolution compared to the main image. A movement control instruction is received, by the PTZ camera, in response to an evaluation of at least one of the main image and the overlay. | 2021-10-28 |
20210337159 | INTERFACE APPARATUS AND DISPLAY APPARATUS - The present disclosure provides an interface apparatus and a display apparatus. The interface apparatus is provided with a power supply circuit and an HDMI receptacle. The power supply circuit is coupled to a first power source and the HDMI receptacle, and is configured to convert a first voltage from the first power source into a preset voltage and provide the preset voltage to the HDMI receptacle. The HDMI receptacle is configured to output the preset voltage to an external device coupled to the HDMI receptacle. | 2021-10-28 |
20210337160 | RECORDING CONTROL DEVICE, RECORDING CONTROL SYSTEM, RECORDING CONTROL METHOD, AND COMPUTER PROGRAM - A recording control device includes: a photographic data acquisition unit that acquires photographic data from a camera that photographs a periphery of a vehicle; a moving object detection unit that detects a moving object from the photographic data acquired by the photographic data acquisition unit while the vehicle is parked; and a recording control unit that correlates detection information of the moving object with the photographic data, records the correlated information in a recording unit as a data file that is capable of being overwritten, and when overwriting of the data file in the recording unit becomes necessary, performs the overwriting by reducing the priority of overwriting on the data file in which the moving object is detected. | 2021-10-28 |
20210337161 | VIDEO MANAGEMENT APPARATUS, VIDEO MANAGEMENT METHOD AND PROGRAM - A video management device includes a storage processing unit configured to store video data received through a network in a storage unit, a calculation unit configured to classify a video data group stored in the storage unit based on combinations of imaging locations and content of video data, and to calculate a frequency of appearance of each of the combinations, and a selection unit configured to select video data to be deleted from the storage unit based on the frequency of appearance, thereby increasing a possibility that the deletion of a high-value video will be avoided. | 2021-10-28 |
20210337162 | METHODS AND APPARATUS FOR ENCRYPTING CAMERA MEDIA - Apparatus and methods for encrypting captured media. In one embodiment, the method includes capturing media data via use of a lens of an image capture apparatus; obtaining a number used only once (NONCE) value from the captured media data; obtaining an encryption key for use in encryption of the captured media data; using the obtained NONCE value and the obtained encryption key for encrypting the captured media data; and storing the encrypted media data. In some variants, the media is encrypted prior to storage, thereby obviating any instances in which the captured media data resides in a wholly unencrypted instance. Apparatus and methods for decrypting encrypted captured media are also disclosed. | 2021-10-28 |
20210337163 | SYSTEM AND METHOD FOR IMAGE FORMAT CONVERSION USING 3D LOOKUP TABLE APPROXIMATION - A system is provided for converting image data from a first image format to a second image format that approximates a three-dimensional lookup table. The system includes an image processing operation database that stores image format conversion configurations; an image format conversion selector that selects an image format conversion for converting the image data from a first to a second format and that accesses, from the database, a corresponding image format conversion configuration for converting the image data to the second format; and an image processor that executes processing input operations on RGB components of the image data, a 3×3 matrix, and processing output operations on the respective RGB components that are output from the 3×3 matrix, such that the image data is converted to the second format, with the processing input and output operations comprising the accessed image format conversion configuration. | 2021-10-28 |
20210337164 | Image Component Detection - A processor unit configured to identify blocks of a frame of a video sequence to be excluded from a motion-compensated operation, the processor unit comprising: a frame processor configured to process pixel values of a first frame to characterise blocks of one or more pixels of the first frame as representing at least a portion of a graphic object; a frame-difference processor configured to determine difference values between blocks of the first frame and corresponding blocks of a second frame, and to process said difference values to characterise blocks of the first frame as representing an image component that is static between the first and second frames; a block identifier configured to identify blocks of the first frame as protected blocks in dependence on blocks characterised as: (i) representing at least a portion of a graphic object; and (ii) representing an image component that is static between the first and second frames, wherein the identified protected blocks are to be excluded from the motion compensated operation. | 2021-10-28 |
20210337165 | SIGNAL SPLITTING DEVICE - A signal splitting device is to be installed in a CATV passive apparatus. The signal splitting device includes a circuit board that is disposed in a cover of the CATV passive apparatus, and a first connecting terminal and a second connecting terminal that are mounted to the circuit board and that are connected respectively to input and output terminals of the CATV passive apparatus. Each of the first and second connecting terminals includes a pin electrically connecting the circuit board and the corresponding one of the input and output terminals. The pin has a segment that is between the circuit board and the corresponding one of the input and output terminals and that has a length ranging from 4 to 15 mm. | 2021-10-28 |
20210337166 | CROSS-APPLICATION GENERATING AND FACILITATING OF VIDEO ROOMS - This disclosure describes a video room system that can generate a video room utilizing a cross-application technique by accessing functions of one application based on user interaction within a separate application. In particular, the disclosed systems can generate a video room that remains open for access by a creator device and invitee devices in a casual come-and-go fashion. The disclosed systems can further generate a video room link that is distributable intelligently to grant access to the video room to invitee devices. The disclosed systems can also automatically surface a video room link to an invitee device based on determining a digital connection between the invitee device and the creator device. | 2021-10-28 |
20210337167 | DYNAMICALLY MODIFYING LIVE VIDEO STREAMS FOR PARTICIPANT DEVICES IN DIGITAL VIDEO ROOMS - This disclosure describes a video room system that can efficiently and flexibly generate and facilitate video rooms for video chatting between participant devices by prioritizing video streams to provide to participant devices based on performance parameters. For example, the video room system can provide different video room streams to different participant devices based on the performance parameters of the participant devices. In addition, the video room system can customize or tailor video room streams based on identifying dominant speaker devices, determining connections between participant devices as indicated by a social graph of a social networking system, and/or based on join methods utilized by participant devices to join a video room. | 2021-10-28 |
20210337168 | CONTEXTUAL AUTOMATED SURVEILLANCE BY A MOBILE ROBOT - A mobile robot is configured for operation in a commercial or industrial setting, such as an office building or retail store. The robot can patrol one or more routes within a building, and can detect violations of security policies by objects, building infrastructure and security systems, or individuals. In response to the detected violations, the robot can perform one or more security operations. The robot can include a removable fabric panel, enabling sensors within the robot body to capture signals that propagate through the fabric. In addition, the robot can scan RFID tags of objects within an area, for instance coupled to store inventory. Likewise, the robot can generate or update one or more semantic maps for use by the robot in navigating an area and for measuring compliance with security policies. | 2021-10-28 |
20210337169 | IMAGE SENSOR WITH SHIFTED COLOR FILTER ARRAY PATTERN AND BIT LINE PAIRS - An imaging device includes groupings of photodiodes having four photodiodes. A transfer transistor is between each photodiode and a floating diffusion. Each floating diffusion is coupled to up to two photodiodes per grouping at a time through transfer transistors. A buffer transistor is coupled to each floating diffusion. The buffer transistors may be in a first or second grouping of buffer transistors. A first bit line is coupled to up to two buffer transistors of the first grouping and a second bit line is coupled to up to two buffer transistors of the second grouping of buffer transistors at a time. A color filter array including a plurality of groupings of color filters is disposed over respective photodiodes of the photodiode array, wherein each grouping of color filters includes four color filters having a same color, wherein each grouping of color filters overlaps two groupings of photodiodes. | 2021-10-28 |
20210337170 | 3 MOS CAMERA - A 3 MOS camera includes a first prism that has a first reflection film which reflects IR light that causes a first image sensor to receive the IR light, a second prism that has a second reflection film which reflects A % (A: a predetermined real number) visible light and that causes a second image sensor to receive the A % visible light, a third prism that causes a third image sensor to receive a (100−A)% visible light, and a video signal processor that combines a first video signal, a second video signal, and a third video signal of an observation part. The video signal processor performs pixel shifting on one of the second video signal and the third video signal having substantially same brightness to generate a fourth video signal and outputs a video signal obtained by combining the fourth video signal and the first video signal. | 2021-10-28 |
20210337171 | OPTICAL CONTROL OF QUBITS WITH SPATIAL LIGHT MODULATORS FOR QUANTUM COMPUTING AND QUANTUM SIMULATION - Systems and methods for the optical control of qubits and other quantum particles with spatial light modulators (SLM) for quantum computing and quantum simulation are disclosed herein. The system may include a particle system configured to provide an ordered array comprising a multiplicity of quantum particles or a multiplicity of qubits, an optical source, a SLM configured to project a structured illumination pattern capable of individually addressing one or more quantum particles or qubits of the ordered array, and a SLM controller. | 2021-10-28 |
20210337172 | LASER DEVICE, PROJECTION TYPE IMAGE DISPLAY DEVICE AND SENSING DEVICE - Provided is a laser device, comprising a laser light source, a collimating lens that collimates the light output from the laser light source, and a diffuser plate that diffuses the light from the laser light source before collimating the light. | 2021-10-28 |
20210337173 | REFLECTIVE DISPLAY COMPRISING COUPLING LIGHTGUIDES FOLDED AT DIFFERENT FOLD ANGLES - In some aspects, a display comprises a reflective spatial light modulator, a light source, and a film-based lightguide having an array of coupling lightguides in a form of strips of the film extending from and continuous with a lightguide region of the film. The coupling lightguides are folded and stacked behind the reflective spatial light modulator along fold lines oriented at different orientation angles. In some embodiments, the coupling lightguides comprise lateral edges with curved portions. In some embodiments, the coupling lightguides are tapered. In some embodiments, the reflective spatial light modulator comprises an active area in a shape of a polygon with more than four sides or an active area defined by a boundary with a circular, semi-circular, or arcuate portion. | 2021-10-28 |
20210337174 | VIDEO CONTENT MEDIUM AND VIDEO REPRODUCTION APPARATUS - In a format in which a graphic is transmitted to a display apparatus after being combined with a content video, luminance of the graphic is fluctuated by dynamic metadata control. A video content medium relating to technology disclosed in the description of the present application is a video content medium on which one or more video streams, control information, and graphic information including a menu or a subtitle are recorded, wherein at least one of the video streams is a video having a wide luminance range, and graphic transition time information indicating a transition time to switch between luminance range adjustment functions when a graphic is combined is stored together. | 2021-10-28 |
20210337175 | IMAGE PROCESSING METHOD AND DEVICE - An image processing device acquires at least two first images and down-samples the at least two first images to obtain at least two second images, where a first resolution of the at least two first images is higher than a second resolution of the at least two second images. By using the at least two first images and the at least two second images, the image processing device respectively determines a first depth map corresponding to the at least two first images under a limit of a first disparity threshold, and a second depth map corresponding to the at least two second images under a limit of a second disparity threshold, where the second disparity threshold is greater than the first disparity threshold. The image processing device then combines the determined first depth map with the second depth map to generate a combined depth map. | 2021-10-28 |
20210337176 | BLENDED MODE THREE DIMENSIONAL DISPLAY SYSTEMS AND METHODS - A method for displaying a three dimensional (“3D”) image includes rendering a frame of 3D image data. The method also includes analyzing the frame of 3D image data to generate depth data. The method further includes using the depth data to segment the 3D image data into i) at least one near frame of two dimensional (“2D”) image data corresponding to a near depth, and ii) at least one far frame of 2D image data corresponding to a far depth that is farther than the near depth from a point of view. Moreover, the method includes displaying the near and far frames at the near and far depths respectively. The near and far frames are displayed simultaneously. | 2021-10-28 |
20210337177 | IMAGE PROCESSING APPARATUS, IMAGE GENERATING METHOD, AND STORAGE MEDIUM - It is an object of the present invention to reduce a possibility that a subject (specific object) of a virtual viewpoint image and a virtual object area overlap. To achieve the object, the present invention comprises a first identifying unit for identifying a three-dimensional position of the specific object captured respectively from different directions by a plurality of cameras; a second identifying unit for identifying a three-dimensional position of a virtual viewpoint related to generation of the virtual viewpoint image based on captured images obtained by the plurality of cameras; and a determining unit for determining a position of the virtual object area to which a virtual object to be displayed in the virtual viewpoint image is disposed, based on the three-dimensional position of the specific object identified by the first identifying unit and the three-dimensional position of the virtual viewpoint identified by the second identifying unit. | 2021-10-28 |
20210337178 | STEREOSCOPIC IMAGE CAPTURING SYSTEMS - A stereoscopic imager system, comprising: a sensor array comprising a first plurality of photosensors and a second plurality of photosensors spaced apart from the first plurality of photosensors by a gap, the first plurality of photosensors and the second plurality of photosensors being configured to detect ambient light in a scene; a moving component coupled to the sensor array and operable to move the sensor array between a first position and a second position within a full rotational image capturing cycle; and a system controller coupled to the sensor array and the moving component. The system controller can be configured to: move a field of view of a sensor array by instructing the moving component to capture a first image of an object in the scene with the first plurality of photosensors from a first perspective at the first position, and to capture a second image of the scene of the object in the scene with the second plurality of photosensors from a second perspective at the second position; and calculate, based on the first image and the second image, a distance to the object using an optical baseline defined by the gap. | 2021-10-28 |
20210337179 | THREE-DIMENSIONAL DISPLAY APPARATUS, THREE-DIMENSIONAL IMAGING APPARATUS, AND METHOD OF DISPLAYING THREE-DIMENSIONAL IMAGE - The present application provides a three-dimensional display apparatus for providing a plurality of view points to a view zone. The three-dimensional display apparatus includes a display panel configured to display a plurality of first sub-images respectively in a plurality of display sub-regions and display a plurality of second sub-images respectively in the plurality of display sub-regions; a main lens configured to focus each of the plurality of first sub-images to a first view point and focus each of the plurality of second sub-images to a second view point; a plurality of first light sources configured to provide back light for the display panel to respectively display the plurality of first sub-images, and a plurality of second light sources configured to provide back light for the display panel to respectively display the plurality of second sub-images. | 2021-10-28 |
20210337180 | OPTICAL DEVICE AND DISPLAY APPARATUS - A first stereoscopic image display device ( | 2021-10-28 |
20210337181 | ELECTRONIC DEVICE - An electronic device is disclosed. The electronic device comprises: a first display for the left eye of a user; a second display for the right eye of the user, that is spaced apart from the first display in a one direction; frames that hold the first display and the second display and are supported on the user's head; and an optical variable unit capable of varying the optical alignment of the first display or second display. An electronic device according to the present invention may be associated with an artificial intelligence module, robot, augmented reality (AR) device, virtual reality (VR) device, and device related to 5G services. | 2021-10-28 |
20210337182 | DISPLAY APPARATUS AND DISPLAY SYSTEM - A three-dimensional display apparatus providing a plurality of view points at a view zone includes a directional display structure including a plurality of first sub-pixels configured to display a plurality of first sub-images, and a plurality of second sub-pixels configured to display a plurality of second sub-images; a plurality of grating structures including a plurality of first grating structures configured to perform diffraction of light such that the first sub-images are directionally transmitted, and a plurality of second grating structures configured to perform diffraction of light such that the second sub-images are directionally transmitted; a reflector between the directional display structure and the view zone reflecting the first sub-images being directionally transmitted to a first view point and the second sub-images being directionally transmitted to a second view point, thereby displaying a three-dimensional image. The first and second view points can be different but within a same view zone. | 2021-10-28 |
20210337183 | NEAR-EYE DISPLAY AND METHOD FOR ADJUSTING BRIGHTNESS OF A NEAR-EYE DISPLAY - The present disclosure relates to a near-eye display and a method for adjusting the brightness of a near-eye display. The near-eye display including a first display screen for displaying one of a left eye image and a right eye image, a second display screen for displaying the other of the left eye image and the right eye image, a detector configured to detect a first detected value indicating brightness of the first display screen and a second detected value indicating brightness of the second display screen, and a controller configured to adjust brightness of at least one of the first display screen and the second display screen based on the first detected value and the second detected value. | 2021-10-28 |
20210337184 | CANDIDATE MOTION VECTOR LIST CONSTRUCTION METHOD AND DEVICE THEREOF - A candidate MV list construction method and device. The method includes: obtaining a first candidate MV list of a current image block in a first merge mode when an inter-frame prediction mode is the first merge mode; and when the inter-frame prediction mode is a second merge mode, obtaining the first candidate MV list of the current image block; and reorganize MVs in the first candidate MV list to obtain a second candidate MV list of the current image block in the second merge mode when the first candidate MV list includes two-way MVs. Complexity of hardware of a video encoding/decoding device is reduced. | 2021-10-28 |
20210337185 | ENCODER WHICH GENERATES PREDICTION IMAGE TO BE USED TO ENCODE CURRENT BLOCK - An encoder includes circuitry and memory connected to the circuitry. The circuitry, in operation: derives, as a first parameter, a total sum of absolute values of sums of horizontal gradient values respectively for pairs of relative pixel positions; derives, as a second parameter, a total sum of absolute values of sums of vertical gradient values respectively for the pairs of relative pixel positions; derives, as a third parameter, a total sum of horizontal-related pixel difference values respectively for the pairs of relative pixel positions; derives, as a fourth parameter, a total sum of vertical-related pixel difference values respectively for the pairs of relative pixel positions; derives, as a fifth parameter, a total sum of vertical-related sums of horizontal gradient values respectively for the pairs of relative pixel positions; and generates a prediction image to be used to encode the current block using the first, second, third, fourth, and fifth parameters. | 2021-10-28 |
20210337186 | RESET OF HISTORICAL MOTION VECTOR PREDICTION - In some embodiments, a method maintains a first list that stores motion vectors from one or more blocks that have been previously processed in a frame. When a current block is in the first set of positions in the frame, the method resets and uses a motion vector from a second list to transcode the current block due to the resetting of the first list. When the current block is not in the first set of positions, the method uses a motion vector from the first list to transcode the current block. | 2021-10-28 |
20210337187 | SYSTEM AND METHOD FOR IMPROVING COMBINED INTER AND INTRA PREDICTION - The present disclosure relates to a method for video coding. The method includes obtaining a first reference picture and a second reference picture associated with a current prediction block, obtaining a first prediction L0 based on a first motion vector MV | 2021-10-28 |
20210337188 | VIDEO CODING USING CROSS-COMPONENT LINEAR MODEL - A method and a computing device are provided for video coding. The method may include deriving parameter α and parameter β for a CCLM mode by using a predetermined number of neighboring reconstructed luma samples and chroma samples in a CU; and generating a final chroma predictor for the chroma samples of the CU by using the parameter α and the parameter β. | 2021-10-28 |
20210337189 | PREDICTION MODE DETERMINING METHOD AND APPARATUS - A prediction mode determining method and apparatus are described. A prediction mode status of a child node of a target node is determined based on an area and a split manner of the target node, where the prediction mode status includes intra prediction mode only and inter prediction mode only. Further, a prediction mode of the child node is determined based on the prediction mode status of the child node. In this way, a same prediction mode is used for all child nodes obtained by splitting the target node. This facilitates pipeline processing of hardware, increases a subsequent processing speed, and improves video coding efficiency. | 2021-10-28 |
20210337190 | INTRA MODE SELECTION IN INTRA PREDICTION - A method of controlling intra prediction for decoding or encoding of a video sequence, is performed by at least one processor and includes obtaining intra prediction modes including directional modes respectively corresponding to angular prediction directions, a first amount of one or more of the directional modes being excluded from the intra prediction modes based on a second amount of the intra prediction modes and a third amount of most probable modes (MPMs). The method further includes selecting, as the MPMs, two or more of the intra prediction modes from which the one or more of the directional modes are excluded, and selecting, for decoding the video sequence, one of the intra prediction modes from which the one or more of the directional modes are excluded. | 2021-10-28 |
20210337191 | METHOD AND APPARATUS FOR MULTIPLE LINE INTRA PREDICTION IN VIDEO COMPRESSION - A method of video decoding includes determining, for a current block of a picture, one of a plurality of reference lines. The method includes determining an intra prediction mode for the current block in accordance with the determined one of the plurality of reference lines. The method further includes performing intra prediction for the current block based on the determined intra prediction mode and one or more samples included in the determined one of the plurality of reference lines. The plurality of reference lines includes an adjacent reference line that is adjacent to the current block and at least one non-adjacent reference line that is not adjacent to the current block, and each of the at least one non-adjacent reference line is associated with a decreasing number of intra prediction modes with respect to a direction away from the current block. | 2021-10-28 |
20210337192 | IMAGE PROCESSING METHOD AND ASSOCIATED ENCODER - An image processing method includes: determining a first block and a second block corresponding to a current block; dividing each of the current block, the first block and the second block into a plurality of clusters; for a cluster having a corresponding location within each of the current block, the first block and the second block, performing gradient calculations on pixel values within the cluster of the first block and pixel values within the cluster of the second block, and accordingly determining an adjustment value, wherein a window size of the cluster used in the gradient calculations is one or zero; and for a pixel within the cluster of the current block, referring to a pixel value of the pixel of the first block, a pixel value of the pixel of the second block and the adjustment value to calculate a pixel value of the pixel of the current block. | 2021-10-28 |
20210337193 | GEOMETRIC CROSS-COMPONENT FILTERING - A method, computer program, and computer system is provided for encoding and decoding video data. Video data is received, and a directionality of a sample block of the received video data is determined. The directionality corresponds to a descriptor, such as edge direction or gradient. A geometric transformation is applied based on the determined directionality. The video data is decoded based on the applied geometric transformation. | 2021-10-28 |
20210337194 | METHOD AND APPARATUS OF SHARPENING INTERPOLATION FILTERING FOR PREDICTIVE CODING - The present disclosure relates to apparatuses and methods for intra- or inter-prediction for video encoding and decoding. In one embodiment, a method includes obtaining a reference sample and obtain a fractional sample position p; filtering the reference sample using a subpixel interpolation filter to obtain a predicted sample value. In the method, the filter coefficients of the subpixel interpolation filter satisfy a linear combination of p and a filter strength parameter S. | 2021-10-28 |
20210337195 | ENCODER, DECODER, ENCODING METHOD, AND DECODING METHOD - An encoder includes processing circuitry and a memory coupled to the processing circuitry. Using the memory, the processing circuitry is configured to: change values of pixels in a first block and a second block to filter a boundary between the first block and the second block. The pixels include type one pixels and type two pixels different from the type one pixels. The first set of filter coefficients applied to the type one pixels in the first block and the second set of filter coefficients applied to the type one pixels in the second block are selected to be asymmetrical with respect to the boundary based on block sizes of the first block and the second block. | 2021-10-28 |
20210337196 | METHOD FOR ENCODING/DECODING IMAGE SIGNAL, AND APPARATUS THEREFOR - A method for decoding an image, according to the present invention, comprises the steps of: determining whether a coding block is divided into a first prediction unit and a second prediction unit; determining a partition type of the coding block when determining that the coding block is divided; deriving first motion information about a first prediction unit and second motion information about a second prediction unit within the coding block; and acquiring a prediction sample within the coding block on the basis of the first motion information and the second motion information. | 2021-10-28 |
20210337197 | METHOD AND APPARATUS FOR PROCESSING VIDEO SIGNAL - A method for decoding a video according to the present invention may comprise: determining merge target candidate blocks of a current coding block, specifying at least one among the merge target candidate blocks, and generating a merged block by merging the specified merge target candidate block and the current coding block. | 2021-10-28 |
20210337198 | Temporal Motion Constrained Sub-picture Signaling In Video Coding - A video coding mechanism is disclosed. The mechanism includes a bitstream comprising a parameter set and one or more sub-pictures partitioned from a picture. The parameter set is parsed to obtain a flag indicating that a current sub-picture is a temporal motion constrained sub-picture. The current sub-picture is extracted from the bitstream independently of the picture and based on the flag. The current sub-picture is decoded to create a video sequence. The video sequence is forwarded for display. | 2021-10-28 |
20210337199 | Sub-picture Position Constraints In Video Coding - A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising a plurality of sub-pictures partitioned from a picture such that a union of the sub-pictures covers a total area of the picture without overlap. The bitstream is parsed to obtain the one or more sub-pictures. The one or more sub-pictures are decoded to create a video sequence. The video sequence is forwarded for display. | 2021-10-28 |
20210337200 | Sub-picture Layout Signaling In Video Coding - A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising a sub-picture partitioned from a picture and a sequence parameter set (SPS) comprising a sub-picture size and a sub-picture location. The SPS is parsed to obtain the sub-picture size of the sub-picture and the sub-picture location of the sub-picture. The sub-picture is decoded based on the sub-picture size and the sub-picture location to create a video sequence. The video sequence is forwarded for display. | 2021-10-28 |
20210337201 | METHOD AND APPARATUS FOR PROCESSING IMAGE SIGNAL - The embodiments of the present disclosure provides a method and apparatus for video signal processing. A method for decoding an image signal according to an embodiment of the present disclosure may include determining an input length and an output length of a non-separable transform based on a height and a width of a current block; determining a non-separable transform matrix corresponding to the input length and the output length of a non-separable transform; and applying the non-separable transform matrix to coefficients by a number of the input length in the current block, wherein the height and the width of a current block is greater than or equal to 8, wherein, if each of the height and the width of a current block is equal to 8, the input length of the non-separable transform is determined as 8. | 2021-10-28 |
20210337202 | ADAPTIVE QUANTIZATION METHOD FOR 360-DEGREE VIDEO CODING - Systems, procedures, and instrumentalities may be provided for adaptively adjusting quantization parameters (QPs) for 360-degree video coding. For example, a first luma QP for a first region may be identified. Based on the first luma QP, a first chroma QP for the first region may be determined. A QP offset for a second region may be identified. A second luma QP for the second region may be determined based on the first luma QP and/or the QP offset for the second region. A second chroma QP of the second region may be determined based on the first chroma QP and/or the QP offset for the second region. An inverse quantization may be performed for the second region based on the second luma QP for the second region and/or the second chroma QP for the second region. The QP offset may be adapted based on a spherical sampling density. | 2021-10-28 |
20210337203 | ADAPTIVE QUANTIZATION OF WEIGHTED MATRIX COEFFICIENTS - A method for encoding an input signal comprising signal frames into quantized bits is disclosed, the method comprises generating, for each frame of the input signal, a signal matrix comprising matrix coefficients obtained from that frame, grouping the matrix coefficients of each signal matrix into a plurality of partition vectors, and for each partition vector, selecting one vector quantization scheme from among a plurality of vector quantization schemes and quantizing that partition vector according to the selected vector quantization scheme to obtain the quantized bits. In an adaptive mode, the method comprises grouping differently the matrix coefficients obtained from different frames, and/or selecting different vector quantization schemes for partition vectors obtained from different frames. | 2021-10-28 |
20210337204 | IMAGE DECODING METHOD AND DEVICE USING RESIDUAL INFORMATION IN IMAGE CODING SYSTEM - An image decoding method, which is performed by a decoding device according to the present document, is characterized by including: a step for receiving a bitstream including residual information about the current block; a step for deriving a maximum value of the number of context-encoding bins for context syntax elements coded on the basis of context included in the residual information; a step for entropy-decoding the context syntax elements on the basis of the maximum value; a step for deriving conversion coefficients for the current block on the basis of the entropy-decoded context syntax elements; a step for deriving a residual sample for the current block on the basis of the conversion coefficients; and a step for generating a reconstructed picture on the basis of the residual sample for the current block. | 2021-10-28 |
20210337205 | METHOD AND APPARATUS FOR ADJUSTING QUANTIZATION PARAMETER FOR ADAPTIVE QUANTIZATION - A method and apparatus for adjusting a quantization parameter for adaptive quantization are provided. An implementation of the method may include: acquiring at least one pixel block corresponding to a to-be-compressed image and an initial quantization parameter adjustment value corresponding to the pixel block, the initial quantization parameter adjustment value being generated based on an image objective quality evaluation index; determining a just noticeable difference, JND, threshold corresponding to each pixel point in the at least one pixel block; determining a block JND threshold corresponding to each pixel block, based on the JND threshold corresponding to each pixel point in the at least one pixel block; and adjusting the corresponding initial quantization parameter adjustment value based on the block JND threshold to generate an adjusted quantization parameter adjustment value corresponding to the at least one pixel block. | 2021-10-28 |
20210337206 | CONVERSION FACTOR LEVEL CODING METHOD AND DEVICE THEREFOR - A method for decoding an image by a decoding device according to the present disclosure comprises the steps of: receiving a bit stream including residual information; deriving a quantized conversion factor of a current block on the basis of the residual information included in the bit stream; deriving a residual sample of the current block on the basis of the quantized conversion factor; and generating a reconstructed picture on the basis of the residual sample of the current block. | 2021-10-28 |
20210337207 | METHOD FOR DETERMINING PREDICTION DIRECTION, DECODER, AND COMPUTER STORAGE MEDIUM - The embodiments of the disclosure disclose a method for determining a prediction direction, a decoder and a computer storage medium. The method is implemented by a decoder. The method includes that: a Direct Mode (DM) in a chroma intra prediction mode of a block to be decoded is acquired (S | 2021-10-28 |
20210337208 | Video Encoder, a Video Decoder and Corresponding Methods of Processing MMVD Distance - A method of determining a distance table of a merge with motion vector difference (MMVD) mode, wherein the method comprises determining a reference picture from at least one reference picture list of a current processing unit based on at least one parameter of the reference picture, and obtaining the distance table for the current processing unit based on the reference picture, wherein the at least one parameter of the reference picture comprises a picture order count (POC) number of the reference picture, a number of MMVD blocks of the reference picture, a reference picture list index of the reference picture, a reference picture index of the reference picture, and a quantization parameter (QP) of the reference picture. | 2021-10-28 |
20210337209 | METHOD AND APPARATUS FOR DECODING IMAGE ON BASIS OF PREDICTION BASED ON MMVD IN IMAGE CODING SYSTEM - A method for decoding an image by a decoding apparatus according to the present document comprises the steps of: receiving a bit stream including prediction information of a current block; configuring a merge candidate list with respect to the current block; deriving motion information of the current block on the basis of a merge candidate indicated by a candidate flag of the current block in the merge candidate list; deriving an MVD of the current block on the basis of MVD information of the current block and whether or not integer sample precision or fractional sample precision is used in the motion information; deriving modified motion information of the current block on the basis of the motion information and the MVD; and performing prediction of the current block on the basis of the modified motion information, wherein the prediction information includes the candidate flag and the MVD information. | 2021-10-28 |
20210337210 | 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. | 2021-10-28 |
20210337211 | ENCODER, A DECODER AND CORRESPONDING METHODS OF DEBLOCKING FILTER ADAPTATION - The present disclosure provides a coding method, wherein the coding includes decoding or encoding, and the method comprises determining whether a current coding unit is predicted by application of combined inter-intra prediction (CIIP); and in response to determining that the current coding unit is predicted by application of CIIP, setting a boundary strength of a boundary of the current coding unit to a first value. | 2021-10-28 |
20210337212 | PARAMETERIZATION FOR FADING COMPENSATION - Techniques and tools for performing fading compensation in video processing applications are described. For example, during encoding, a video encoder performs fading compensation using fading parameters comprising a scaling parameter and a shifting parameter on one or more reference images. During decoding, a video decoder performs corresponding fading compensation on the one or more reference images. | 2021-10-28 |
20210337213 | PARAMETERIZATION FOR FADING COMPENSATION - Techniques and tools for performing fading compensation in video processing applications are described. For example, during encoding, a video encoder performs fading compensation using fading parameters comprising a scaling parameter and a shifting parameter on one or more reference images. During decoding, a video decoder performs corresponding fading compensation on the one or more reference images. | 2021-10-28 |
20210337214 | SELECTION OF MOTION VECTOR PRECISION - Approaches to selection of motion vector (“MV”) precision during video encoding are presented. These approaches can facilitate compression that is effective in terms of rate-distortion performance and/or computational efficiency. For example, a video encoder determines an MV precision for a unit of video from among multiple MV precisions, which include one or more fractional-sample MV precisions and integer-sample MV precision. The video encoder can identify a set of MV values having a fractional-sample MV precision, then select the MV precision for the unit based at least in part on prevalence of MV values (within the set) having a fractional part of zero. Or, the video encoder can perform rate-distortion analysis, where the rate-distortion analysis is biased towards the integer-sample MV precision. Or, the video encoder can collect information about the video and select the MV precision for the unit based at least in part on the collected information. | 2021-10-28 |
20210337215 | SIDE INFORMATION SIGNALING FOR INTER PREDICTION WITH GEOMETRIC PARTITIONING - A method for processing a video includes performing a determination, by a processor, that a first video block is partitioned to include a first prediction portion that is non-rectangular and non-square; adding a first motion vector (MV) prediction candidate associated with the first prediction portion to a motion candidate list associated with the first video block, wherein the first MV prediction candidate is derived from a sub-block MV prediction candidate; and performing further processing of the first video block using the motion candidate list. | 2021-10-28 |
20210337216 | NUMBER OF MOTION CANDIDATES IN A LOOK UP TABLE TO BE CHECKED ACCORDING TO MODE - Devices, systems and methods for encoding and decoding digital video using a table containing coding candidates are described. In a representative aspect, a video processing method is provided to include maintaining a set of tables, wherein each table includes motion candidates and each motion candidate is associated with corresponding motion information; and performing a conversion between a bitstream representation of a video including a current block and the current block, and wherein the performing of the conversion includes checking at most N motion candidates in a table based on a rule. | 2021-10-28 |
20210337217 | VIDEO ANALYTICS ENCODING FOR IMPROVED EFFICIENCY OF VIDEO PROCESSING AND COMPRESSION - Embodiments are generally directed to video analytics encoding for improved efficiency of video processing and compression. An embodiment of an apparatus includes a memory to store data, including data for video streaming, and a video processing mechanism, wherein the video processing mechanism is to analyze video data and generate video analytics, generate metadata representing the video analytics and insert the generated video analytics metadata into a message, and transmit the video data and the metadata to a succeeding apparatus or system in a video analytics pipeline, the video data being compressed video data. | 2021-10-28 |
20210337218 | Lossless Compression Techniques - Techniques are disclosed relating to data compression. In some embodiments, compression circuitry determines, at least partially in parallel for multiple different lossless compression techniques, a number of bits needed to represent a least compressible pixel, using that technique, in a set of pixels being compressed. The compression techniques may include neighbor, origin, and gradient techniques, for example. The compression circuitry may select one of the compression techniques based on the determined numbers of bits for the multiple compression techniques and corresponding header sizes. In some embodiments, the compression circuitry determines, for multiple regions of pixels in the set of pixels, for ones of the compression techniques, a region number of bits needed to represent a least compressible pixel, using that technique. The selection of a compression technique may be further based on region numbers of bits. | 2021-10-28 |
20210337219 | ELECTRONIC DEVICE AND METHOD FOR COMPRESSING VIDEO DATA - A computer-implemented method for compressing video data comprises receiving a sequence of video data values, each video data value being a digital value from a successive one of a plurality of pixels that form a video sensor, the sequence of video data values resulting from successive frames of video captured by the video sensor; extracting the video data values for each pixel in turn to create a plurality of pixel data streams, each pixel data stream including the video data value for each frame of captured video for the pixel; and applying data compression to each pixel data stream to create compressed data for each pixel data stream. | 2021-10-28 |
20210337220 | Video Encoder, Video Decoder, and Corresponding Method - A decoding method includes obtaining an identifier from a bitstream, where the identifier indicates a minimum decoding time interval k between library pictures that is allowed in the bitstream, obtaining, when parsing the bitstream, a decoding moment t | 2021-10-28 |
20210337221 | METHOD AND DEVICE FOR DECODING VIDEO - The present invention discloses a video decoding method performed by a video decoding device. The video decoding method according to an embodiment may include the steps of: obtaining NAL unit type information indicating a type of a current network abstraction layer (NAL) unit from a bitstream; and decoding, when the NAL unit type information indicates that the NAL unit type of the current NAL unit is an encoded data for an slice, the slice based on whether a mixed NAL unit type is applied to a current picture. | 2021-10-28 |
20210337222 | GENERATING MULTI-PASS-COMPRESSED-TEXTURE IMAGES FOR FAST DELIVERY - The present disclosure relates to systems, methods, and non-transitory computer-readable media to enhance texture image delivery and processing at a client device. For example, the disclosed systems can utilize a server-side compression combination that includes, in sequential order, a first compression pass, a decompression pass, and a second compression pass. By applying this compression combination to a texture image at the server-side, the disclosed systems can leverage both GPU-friendly and network-friendly image formats. For example, at a client device, the disclosed system can instruct the client device to execute a combination of decompression-compression passes on a GPU-network-friendly image delivered over a network connection to the client device. In so doing, client device can generate a tri-pass-compressed-texture from a decompressed image comprising texels with color palettes based on previously reduced color palettes from the first compression pass at the server-side, which reduces computational overhead and increases performance speed. | 2021-10-28 |
20210337223 | METHOD AND SYSTEM FOR PANORAMIC MULTIMEDIA STREAMING ENABLING VIEW-REGION SELECTION - A panoramic multimedia streaming server communicatively coupled to numerous client devices of different types enables individual client devices to dynamically select view-regions of interest. A source video signal capturing a panoramic field of view is processed to generate a pure video signal faithfully representing the panoramic field of view. The pure video signal is content filtered to produce multiple view-region-specific video signals corresponding to predefined view regions within the panoramic field of view. Frame samples of the pure video signal are transmitted to a client device to enable selection of a view region of interest. Upon receiving, from the client device, an indication of a view region of interest, a controller selects a specific predefined view region according to proximity of each predefined view region to the indicated view region of interest. A view-region-specific video signal corresponding to the specific predefined view region is streamed to the client device. | 2021-10-28 |
20210337224 | PREDICTION DECODING METHOD AND APPARATUS - A prediction decoding method, a prediction decoding apparatus, and a computer storage medium are provided. The method includes the following. First multiple neighbouring reference samples are obtained by acquiring neighbouring reference samples of a coding block, where the first multiple neighbouring reference samples include reference samples in a reference row or a reference column neighbouring the coding block. Positions corresponding to K reference samples are determined from a starting position of the reference row or the reference column, where K is a positive integer. Second multiple neighbouring reference samples are obtained according to the determined positions corresponding to the K reference samples, where the second multiple neighbouring reference samples include neighbouring reference samples among the first multiple neighbouring reference samples except the K reference samples. Prediction decoding is performed on the coding block according to the second multiple neighbouring reference samples. | 2021-10-28 |
20210337225 | GLOBAL MOTION MODELS FOR MOTION VECTOR INTER PREDICTION - A decoder is configured to receive a bit stream including a current frame and a picture header associated with the entire current frame, determine, as a function of the picture header, that one global motion mode is enabled for the entire current frame, the enabled global motion mode being selected from a group including translational motion, 4-parameter affine motion, and 6-parameter affine motion, detect, based on the enabled global motion mode, a plurality of parameters applicable to the entire frame, and decode the current frame using the detected parameters. | 2021-10-28 |
20210337226 | Sub-picture Level Indicator Signaling In Video Coding - A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising one or more sub-pictures partitioned from a picture and a sub-picture level indicator indicating resource requirements for decoding a current sub-picture. The bitstream is parsed to obtain the sub-picture level indicator and the current sub-picture. Resources are allocated to decode the current sub-picture based on the sub-picture level indicator. The current sub-picture is decoded to create a video sequence by employing the allocated resources. The video sequence is forwarded for display. | 2021-10-28 |
20210337227 | Sub-picture Level Indicator Signaling In Video Coding - A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising a sequence parameter set (SPS), one or more sub-pictures partitioned from a picture, and one or more slice headers associated with one or more slices. The SPS is parsed to obtain sub-picture identifiers (IDs) for the one or more sub-pictures. The slice headers are parsed to obtain a current sub-picture ID associated with a current sub-picture. The current sub-picture ID indicating the slices are included in the current sub-picture of the one or more sub-pictures. The current sub-picture is decoded based on the current sub-picture ID to create a video sequence. The video sequence is forwarded for display. | 2021-10-28 |
20210337228 | Sub-picture Sizing In Video Coding - A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising one or more sub-pictures partitioned from a picture such that each sub-picture includes a sub-picture width that is an integer multiple of a coding tree unit (CTU) size when the each sub-picture includes a right boundary that does not coincide with a right boundary of the picture. The bitstream is parsed to obtain the one or more sub-pictures. The one or more sub-pictures are decoded to create a video sequence. The video sequence is forwarded for display. | 2021-10-28 |
20210337229 | VIDEO DECODING METHOD FOR DECODING PART OF BITSTREAM TO GENERATE PROJECTION-BASED FRAME WITH CONSTRAINED GUARD BAND SIZE AND/OR CONSTRAINED PROJECTION FACE SIZE AND ASSOCIATED ELECTRONIC DEVICE - A video decoding method includes decoding a part of a bitstream to generate a decoded frame. The decoded frame is a projection-based frame that comprises at least one projection face and at least one guard band packed in a projection layout. At least a portion of a 360-degree content of a sphere is mapped to the at least one projection face via projection. The decoded frame is in a 4:2:0 chroma format or a 4:2:2 chroma format, and a guard band size of each of the at least one guard band is equal to an even number of luma samples. | 2021-10-28 |
20210337230 | VIDEO DECODING METHOD FOR DECODING PART OF BITSTREAM TO GENERATE PROJECTION-BASED FRAME WITH CONSTRAINED PICTURE SIZE AND ASSOCIATED ELECTRONIC DEVICE - A video decoding method includes decoding a part of a bitstream to generate a decoded frame, wherein the decoded frame is a projection-based frame that includes a plurality of projection faces packed in a projection layout with M projection face columns and N projection face rows, M and N are positive integers, and at least a portion of a 360-degree content of a sphere is mapped to the plurality of projection faces via projection. Regarding the decoded frame, a picture width excluding guard band samples is equal to an integer multiple of M, and a picture height excluding guard band samples is equal to an integer multiple of N. | 2021-10-28 |
20210337231 | CODING METHOD AND APPARATUS WITH CANDIDATE MOTION VECTORS - A moving picture coding apparatus, method, and medium for coding a current block of a picture are provided. A motion vector candidate list is generated that includes motion vector candidates and, for each of the motion vector candidates, a value. The motion vector candidates include a first candidate and a second candidate. The second candidate is arranged before the first candidate in the motion vector candidate list. The first candidate is sorted before the second candidate in the motion vector candidate list based on the value of the first candidate and the value of the second candidate. The value of the first candidate is higher than the value of the second candidate. For each of the motion vector candidates, the value is based on a number of times the motion vector candidate is selected as a motion vector predictor for neighboring blocks. | 2021-10-28 |