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1. CN104081781 - Coding concept allowing parallel processing, transport demultiplexer and video bitstream

Office
China
Application Number 201380006105.1
Application Date 21.01.2013
Publication Number 104081781
Publication Date 01.10.2014
Grant Number 104081781
Grant Date 02.11.2018
Publication Kind B
IPC
H04N 19/91
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
90using coding techniques not provided for in groups H04N19/10-H04N19/85103
91Entropy coding, e.g. variable length coding or arithmetic coding
H04N 19/436
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
42characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
436using parallelised computational arrangements
H04N 19/70
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
70characterised by syntax aspects related to video coding, e.g. related to compression standards
CPC
H04N 19/13
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
13Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
H04N 19/436
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
42characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
436using parallelised computational arrangements
H04N 19/91
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
90using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
91Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
H04N 19/65
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
65using error resilience
H04N 19/107
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
107between spatial and temporal predictive coding, e.g. picture refresh
H04N 19/169
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
Applicants GE视频压缩有限责任公司
Inventors 托马斯·席尔
瓦莱里·乔治
卡斯滕·格吕内贝格
海纳·基希霍弗尔
阿纳斯塔西娅·亨克尔
德特勒夫·马佩
Agents 北京康信知识产权代理有限责任公司 11240
北京康信知识产权代理有限责任公司 11240
Priority Data 61/588,849 20.01.2012 US
Title
(EN) Coding concept allowing parallel processing, transport demultiplexer and video bitstream
(ZH) 一种编码器、解码器、编解码方法及用于传送解多工的方法
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.
(ZH) 一种以截割片、WPP子流或拼贴块描述一图像且使用上下文自适应二进制算术编码来编码的原始字节序列有效载荷经细分或切碎成份额,利用继续的该上下文自适应二进制算术编码概率适应性横跨份额边界。藉此措施,额外地导入截割片、WPP子流或拼贴块内部的份额边界不会导致此等元素的熵编码效率的减低。但相反地,份额小于原先截割片、WPP子流或拼贴块,且因此,份额可比未经切碎的原先实体亦即截割片、WPP子流或拼贴块更早传输,亦即具有更低的延迟。依据另一方面,该方面与第一方面可组合,子流标记NAL单元用在一视频比特流的一序列NAL单元内部以使得一传送解多工器分派在NAL单元内部的截割片数据给相对应的子流或拼贴块,因而能够并列地用作为具有相对应的子流或拼贴块的一多线程解码器。