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1. JP2018198447 - CODING CONCEPT ALLOWING PARALLEL PROCESSING, TRANSPORT DEMULTIPLEXER, AND VIDEO BIT STREAM

Office
Japan
Application Number 2018146900
Application Date 03.08.2018
Publication Number 2018198447
Publication Date 13.12.2018
Grant Number 6721638
Grant Date 22.06.2020
Publication Kind B2
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 19/13
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 or context adaptive binary arithmetic coding
H04N 19/159
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
134characterised by the element, parameter or criterion affecting or controlling the adaptive coding
157Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
159Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
H04N 19/174
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
17the unit being an image region, e.g. an object
174the region being a slice, e.g. a line of blocks or a group of blocks
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 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 BIT STREAM
(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 an encoder, a decoder and a transport demultiplexer, achieving a decrease in coding delay in a parallel processing environment.

SOLUTION: A decoder receives a raw byte sequence payload which describes an image in slices, WPP sub-streams 92 and tiles 82 and is coded, the slices, the WPP sub-streams and the tiles comprising tranches 86a, 86b divided into a smaller size than the slices, the WPP sub-streams and the tiles, CABAC probability adaptation is continued across tranche boundaries positioned at an inside of the slices, the WPP sub-streams and the tiles, thus the tranches in the slices, the WPP sub-streams, and the tiles are continuously entropy decoded, and the raw byte sequence payload is decoded to apply parallel processing of the slices, the WPP sub-streams, and the tiles.

SELECTED DRAWING: Figure 18

COPYRIGHT: (C)2019,JPO&INPIT


(JA)

【課題】並列処理環境の符号化遅延を減少させる符号化器、復号化器及びトランスポートデマルチプレクサを提供する。
【解決手段】復号化器は、スライス、WPPサブストリーム92、タイル82より小さいサイズに分割された切片86a、86bで構成されるスライス、WPPサブストリーム及び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を受信し、スライス,WPPサブストリーム,タイル内部に位置する切片境界を横断してCABAC確率適合を継続することにより、スライス、WPPサブストリーム及びタイル内部の切片を連続してエントロピー復号化し、ローバイトシーケンスペイロードの復号化を行うことで、スライス、WPPサブストリーム及びタイルの並列処理を適用する。
【選択図】図18


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