Patent application number | Description | Published |
20080310739 | MOVING PICTURE COMPRESSION CODING APPARATUS - A moving picture compression coding apparatus divides a screen into at least three regions and performs compression coding for the at least three regions by encoding units. The moving picture compression coding apparatus includes a coding control unit configured to control the encoding units to encode the data for different regions in parallel and to control the encoding such that the data for an upper region out of two adjacent upper and lower regions in the vicinity of the center of the screen of the at least three regions is encoded prior to the encoding of the data for the lower region or such that the data for a left region of two adjacent left and right regions in the vicinity of the center of the screen of the at least three regions is encoded prior to the encoding of the data for the right region. | 12-18-2008 |
20090074072 | MOVING IMAGE CODING APPARATUS - A moving image coding apparatus includes a motion vector search unit configured to read coding target image data and reference image data which are stored in a memory, and search a motion vector. The motion vector search unit reads the coding target image data in multiple units of N horizontal pixels (N is an integer of 2 and more) and 1 vertical pixel and reads the reference image data in multiple units of P horizontal pixels (P is an integer of 2 and more) and Q vertical pixels (Q is an integer of 2 and more) from the memory. | 03-19-2009 |
20110013695 | MOVING IMAGE ENCODING APPARATUS AND MOVING IMAGE ENCODING METHOD - A moving image encoding apparatus comprises a motion vector search unit for dividing a screen into encoding blocks, dividing each encoding block into motion compensation blocks, and performing a motion vector search by referencing a past or future image with respect to a motion compensation block targeted for encoding, and an encoding unit for encoding a difference value between the motion compensation block and a prediction image that is based on the motion vector. The motion vector search unit sets a plurality of block types for each encoding block, performs rough motion vector search using a reduced image for each block type, computes an evaluation value for each block type based on the motion vectors, and determines whether to set a division method of the block type for which the highest evaluation value was obtained as a motion compensation block division method for a motion vector search in detail. | 01-20-2011 |
20110075736 | MOVING IMAGE ENCODING APPARATUS, CONTROL METHOD THEREOF AND COMPUTER-READABLE STORAGE MEDIUM - The present invention enables searching for an appropriate motion vector even with respect to a moving image with a large amount of motion. Further, the present invention enables searching for an appropriate motion vector even with respect to a moving image including an object that does not uniformly move in a frame image. One aspect of embodiments of the present invention relates to a moving image encoding apparatus configured to divide an input image into a plurality of blocks, and to perform predictive encoding using motion compensation for each of the plurality of blocks, the moving image encoding apparatus. | 03-31-2011 |
20110249747 | MOTION VECTOR DECISION APPARATUS, MOTION VECTOR DECISION METHOD AND COMPUTER READABLE STORAGE MEDIUM - A motion vector decision apparatus used in a moving image encoding apparatus for performing inter-prediction encoding of an encoding target image using a reference image and a motion vector, which decides the motion vector based on a cost calculated using a first weight coefficient as a weight coefficient when a block image included in an encoding target image includes no repetitive pattern, and decides the motion vector based on a cost calculated using a second weight coefficient larger than the first weight coefficient as the weight coefficient when the block image includes the repetitive pattern. | 10-13-2011 |
20110280308 | MOVING IMAGE ENCODING APPARATUS AND METHOD OF CONTROLLING THE SAME - There is provided a moving image encoding apparatus for performing motion compensation prediction encoding. The apparatus comprises, among other things: a calculation unit configured to calculate, for each of a plurality of motion vectors, a difference between an encoding target block image and a reference block image which exists at a position moved based on the motion vector from a position in a reference image corresponding to the predetermined position; and a selection unit configured to select one motion vector from the plurality of motion vectors such that reducing a code amount when the selected motion vector is encoded and reducing the difference corresponding to the selected motion vector are achieved in predetermined balance. The predetermined balance gives priority to reducing the difference over reducing the code amount as a minimum value of a plurality of differences calculated by the calculation unit becomes smaller. | 11-17-2011 |
20130201367 | IMAGE ENCODING APPARATUS AND ITS CONTROL METHOD - Prediction image data corresponding to each of a plurality of different prediction methods is generated, an evaluation value of the prediction method is calculated, the prediction method corresponding to the evaluation value is evaluated on the basis of the calculated evaluation value, whether or not a corresponding prediction method is selected is determined on the basis of the evaluation result, and when the selection of the prediction method is determined, the decision of the selection based on the evaluation by an evaluating unit is not performed but the input image data is intra-picture encoded in accordance with the prediction method whose selection has been determined. | 08-08-2013 |
20130343667 | IMAGE CODING APPARATUS AND IMAGE CODING METHOD - When performing pipeline processes by a prediction method determination unit, prediction coding unit, and entropy coding unit, the size of a block of an integer conversion unit (transform unit: TU) is set smaller than the size of a CU (Coding Unit). A generated code amount is fed back to the prediction coding unit on the TU basis, reducing a feedback delay and increasing the quantization control accuracy. | 12-26-2013 |
20140119448 | MOVING IMAGE ENCODING APPARATUS, IMAGE CAPTURING APPARATUS, AND METHOD OF CONTROLLING MOVING IMAGE ENCODING APPARATUS - A moving image encoding apparatus that supports a plurality of image formats is provided. A format conversion unit converts a format of moving image data. A determination unit determines a prediction mode of intra-frame prediction encoding based on the converted moving image data. An encoding unit performs intra-frame prediction encoding on the moving image data acquired from a memory unit using the determined prediction mode. The determination unit supports moving image data in a predetermined format having a predetermined ratio of the luminance component and the color difference components. The format conversion unit, when the format of the moving image data acquired from the memory unit differs from the predetermined format, converts the format of the moving image data acquired from the memory unit into the predetermined format. | 05-01-2014 |
20140119449 | MOVING IMAGE CODING APPARATUS, MOVING IMAGE CODING METHOD, AND PROGRAM THEREFOR - A moving image coding apparatus which acquires moving image data represented by one of a plurality of different bit depths, converts the acquired moving image data to moving image data having the lowest bit depth among the plurality of different bit depths, determines a prediction mode relating to intra-picture prediction on the basis of the moving image data of the convertedbit depth, and prediction-codes the acquired moving image data represented by one of the plurality of different bit depths in accordance with the determined prediction mode. | 05-01-2014 |