MOTION VECTORS DIFFERENCES ENTROPY ENCODING Russian patent published in 2017 - IPC H04N19/13 H04N19/51 

FIELD: computer engineering.

SUBSTANCE: invention relates to computer engineering. Video from data stream decoding decoder, in which motion vectors differences horizontal and vertical components are encoded, comprises entropy decoder, made, for motion vectors differences horizontal and vertical components, with possibility of truncated unary code removing from data stream using context adaptive binary entropy decoding with exactly one context for each truncated unary code bin position, which is common for motion vectors differences horizontal and vertical components, and Golomb exponential code, using bypass mode with constant equiprobability for producing binarizations of motion vectors differences; de-symbolizer for motion vectors differences syntax elements binarizations de-binarization for producing of motion vectors differences horizontal and vertical components integer values; restorer for recovery of video based on integer values of horizontal and vertical components of motion vectors differences.

EFFECT: technical result consists in improvement of motion vectors differences entropic encoding efficiency.

37 cl, 22 dwg, 12 tbl