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1. VN1/041672 - CODING CONCEPT ALLOWING PARALLEL PROCESSING, TRANSPORT DEMULTIPLEXER AND VIDEO BITSTREAM

Office
Viet Nam
Application Number 1201402778
Application Date 19.08.2014
Publication Number 1/041672
Publication Date 25.05.2020
Publication Kind A
IPC
H04N 7/26
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
24Systems for the transmission of television signals using pulse code modulation
26using bandwidth reduction
Applicants GE Video Compression, LLC
Inventors KIRCHHOFFER, Heiner
HENKEL, Anastasia
MARPE, Detlev
GRUENEBERG, Karsten
GEORGE, Valeri
SCHIERL, Thomas
Agents AMBYS HANOI
Priority Data 61/588,849 20.01.2012 US
Title
(EN) CODING CONCEPT ALLOWING PARALLEL PROCESSING, TRANSPORT DEMULTIPLEXER AND VIDEO BITSTREAM
Abstract
(EN) A raw byte sequence payload describing a picture in slices, WPP substreams or tiles and coded using context-adaptive binary arithmetic coding is subdivided or chopped into tranches with continuing the context-adaptive binary arithmetic coding probability adaptation across tranche boundaries. By this measure, tranche boundaries additionally introduced within slices, WPP substreams or tiles do not lead to a reduction in the entropy coding efficiency of these elements. On the other hand, however, the tranches are smaller than the original slices, WPP substreams or tiles and accordingly they may be transmitted earlier, i.e. with lower delay, than the un-chopped original entities, i.e. slices, WPP substreams or tiles. In accordance with another aspect, which is combinable with the first aspect, substream marker NAL units are used within a sequence of NAL units of a video bitstream in order to enable a transport demultiplexer to assign data of slices within NAL units to the corresponding substreams or tiles so as to be able to, in parallel, serve a multithreaded decoder with the corresponding substreams or tiles.