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

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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

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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

(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

H	ELECTRICITY
04	ELECTRIC COMMUNICATION TECHNIQUE
N	PICTORIAL COMMUNICATION, e.g. TELEVISION
19	Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
42	characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
436	using parallelised computational arrangements

H	ELECTRICITY
04	ELECTRIC COMMUNICATION TECHNIQUE
N	PICTORIAL COMMUNICATION, e.g. TELEVISION
19	Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10	using adaptive coding
102	characterised by the element, parameter or selection affected or controlled by the adaptive coding
13	Adaptive entropy coding, e.g. adaptive variable length coding or context adaptive binary arithmetic coding

H	ELECTRICITY
04	ELECTRIC COMMUNICATION TECHNIQUE
N	PICTORIAL COMMUNICATION, e.g. TELEVISION
19	Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10	using adaptive coding
134	characterised by the element, parameter or criterion affecting or controlling the adaptive coding
157	Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
159	Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction

H	ELECTRICITY
04	ELECTRIC COMMUNICATION TECHNIQUE
N	PICTORIAL COMMUNICATION, e.g. TELEVISION
19	Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10	using adaptive coding
169	characterised 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
17	the unit being an image region, e.g. an object
174	the region being a slice, e.g. a line of blocks or a group of blocks

H	ELECTRICITY
04	ELECTRIC COMMUNICATION TECHNIQUE
N	PICTORIAL COMMUNICATION, e.g. TELEVISION
19	Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
70	characterised by syntax aspects related to video coding, e.g. related to compression standards

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