ENCODING PRINCIPLE THAT MAKES PARALLEL PROCESSING POSSIBLE, TRANSPORT DEMULTIPLEXER AND VIDEO BIT STREAM Russian patent published in 2023 - IPC H04N19/13 H04N19/436 H04N19/70 

FIELD: encoding/decoding.

SUBSTANCE: invention relates to the field of encoding/decoding enabling parallel processing, such as in the emerging HEVC (High Efficiency Video Coding) standard. The raw byte sequence payload describing the image in slices, WPP substreams or tiles, encoded using context-adaptive binary arithmetic encoding is subdivided or divided into tranches, continuing to adapt the context-adaptive binary arithmetic encoding probabilities across the tranche boundaries. By this measure, trench boundaries further introduced into slices, WPP substreams or tiles do not reduce the entropy encoding efficiency of those elements. On the other hand, however, tranches are smaller than the original slices, WPP substreams or tiles, and therefore can be transmitted with lower latency than non-shared original objects, i.e. slices, WPP substreams or tiles. Also, substream marker NAL units are used in a sequence of video bit stream NAL units to allow the transport demultiplexer to assign data slices in NAL units to corresponding substreams or tiles to be able to feed the corresponding substreams or tiles in parallel to a multi-stream decoder.

EFFECT: increase in the efficiency of low-latency encoding in parallel processing environments.

23 cl, 20 dwg