METHOD OF CODING VIDEO AND VIDEO CODING DEVICE USING PREDICTION BLOCKS ON BASIS OF CODING BLOCKS DEFINED IN CONFORMITY WITH TREE-SHAPED STRUCTURE, AND METHOD FOR DECODING VIDEO AND VIDEO DECODING DEVICE USING UNITS OF PREDICATION ON THE BASIS OF CODING UNITS DEFINED IN CONFORMITY WITH TREE-LIKE STRUCTURE

摘要

FIELD: data processing.;SUBSTANCE: invention relates to video encoding and decoding video, which perform transformation between spatial region and transformation region. Video decoding device comprises receiver configured to receive bitstream with respect to encoded video, and decoder. Decoder retrieves information about structure of coding block, indicating block size, variable depth of the block, information about coded depth and coding mode information indicating one of the prediction types including skip mode, interframe mode and intraframe mode. It determines current coding block based on information about block structure, variable depth of block and information about coded depth. Determines current block prediction based on information about encoding mode.;EFFECT: technical result is to increase the efficiency of image compression and, accordingly, to increase the efficiency of image encoding and decoding.;1 cl, 15 dwg, 1 tbl