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1. JP2020167719 - CODING CONCEPT ALLOWING PARALLEL PROCESSING, TRANSPORT DEMULTIPLEXER AND VIDEO BITSTREAM

Office
Japan
Application Number 2020104966
Application Date 18.06.2020
Publication Number 2020167719
Publication Date 08.10.2020
Publication Kind A
IPC
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-H04N19/85103
91Entropy coding, e.g. variable length coding or arithmetic coding
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 VIDEO COMPRESSION LLC
ジーイー ビデオ コンプレッション エルエルシー
Inventors THOMAS SCHIERL
シーアル トーマス
VALERI GEORGE
ジョージ ヴァレーリ
KARSTEN GRUENEBERG
グルーエネベルク カルステン
HEINER KIRCHHOFFER
キルヒホッファー ハイナー
ANASTASIA HENKEL
ヘンケル アナスタージア
MARPE DETLEV
マルペ デトレフ
Agents 岡田 全啓
Priority Data 61/588,849 20.01.2012 US
Title
(EN) CODING CONCEPT ALLOWING PARALLEL PROCESSING, TRANSPORT DEMULTIPLEXER AND VIDEO BITSTREAM
(JA) 並列処理を許容している符号化概念、トランスポートデマルチプレクサおよびビデオビットストリーム
Abstract
(EN)

PROBLEM TO BE SOLVED: To provide a decoder allowing parallel processing, a transport demultiplexer, a video bitstream, and an encoder.

SOLUTION: A raw byte sequence payload describing a picture in slices, WPP substreams or tiles and coded is subdivided or chopped into tranches while continuing the coding probability adaptation across tranche boundaries. Introduced tranche boundaries do not lead to a reduction in the entropy coding efficiency. The tranches are smaller than the original slices, WPP substreams or tiles and accordingly they may be transmitted earlier with lower delay than the un-chopped slices, WPP substreams or tiles. In accordance with another aspect, which is combinable with a first aspect, substream marker NAL units are used 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 multi-threaded decoder with the corresponding substreams or tiles.

SELECTED DRAWING: Figure 3

COPYRIGHT: (C)2021,JPO&INPIT


(JA)

【課題】並列処理を許容する復号化器、トランスポートデマルチプレクサ、ビデオビットストリームおよび符号化器を提供する。
【解決手段】スライス、WPPサブストリーム、タイル内に画像を記述し符号化されたローバイトシーケンスペイロードは、、切片境界全体にわたって符号化確率適合の継続を伴い再分割、切断される。導入された切片境界は、エントロピー符号化効率を減少させない。切片は、元のスライス、WPPサブストリーム、タイルより小さく、切断されていないスライス、WPPサブストリーム、タイルより早く、より小さい遅延で転送できる。第1の視点と組合せうる他の視点に基づきサブストリームマーカーNALユニットは、トランスポートデマルチプレクサがNALユニット内でスライスのデータを対応サブストリーム、タイルに割当可能にするため、マルチスレッド復号化器を、対応サブストリーム、タイルとともに並列に機能するよう使用される。
【選択図】図3


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