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1. CA2827194 - IMAGE CODING METHOD, IMAGE DECODING METHOD, IMAGE CODING APPARATUS, IMAGE DECODING APPARATUS, AND IMAGE CODING AND DECODING APPARATUS

官庁
カナダ
出願番号 2827194
出願日 29.01.2013
公開番号 2827194
公開日 08.08.2013
特許番号
特許付与日 16.01.2018
公報種別 C
IPC
H04N 19/52
H電気
04電気通信技術
N画像通信,例.テレビジョン
19デジタルビデオ信号を符号化,復号化,圧縮または伸張するための方法または装置
50予測符号化を用いるもの
503時間的予測に関するもの
51動き推定または動き補償
513動きベクトルの処理
517符号化によるもの
52予測符号化によるもの
H04N 19/139
H電気
04電気通信技術
N画像通信,例.テレビジョン
19デジタルビデオ信号を符号化,復号化,圧縮または伸張するための方法または装置
10適応的符号化を用いるもの
134適応的符号化に影響を与えるまたはそれを制御する要素,パラメータまたは基準に特徴があるもの
136入力ビデオ信号の特徴または特性
137符号化ユニット内の動き,例.フィールド,フレームまたはブロックの平均誤差
139動きベクトルの分析,例.その大きさ,方向,分散または信頼性
H04N 19/172
H電気
04電気通信技術
N画像通信,例.テレビジョン
19デジタルビデオ信号を符号化,復号化,圧縮または伸張するための方法または装置
10適応的符号化を用いるもの
169符号化ユニット,すなわち適応的符号化の主体または客体となるビデオ信号の構造的部分または意味的部分,に特徴があるもの
17ユニットが画像領域,例.オブジェクト,であるもの
172領域がピクチャ,フレームまたはフィールドであるもの
CPC
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 19/172
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
172the region being a picture, frame or field
H04N 19/46
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
46Embedding additional information in the video signal during the compression process
H04N 19/52
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
503involving temporal prediction
51Motion estimation or motion compensation
513Processing of motion vectors
517by encoding
52by predictive encoding
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
H04N 19/105
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
105Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
出願人 PANASONIC CORPORATION
優先権情報 61/594,718 03.02.2012 US
発明の名称
(EN) IMAGE CODING METHOD, IMAGE DECODING METHOD, IMAGE CODING APPARATUS, IMAGE DECODING APPARATUS, AND IMAGE CODING AND DECODING APPARATUS
(FR) PROCEDES DE CODAGE ET DE DECODAGE D'IMAGE, DISPOSITIFS DE CODAGE ET DE DECODAGE D'IMAGE ET DISPOSITIF DE CODAGE/DECODAGE D'IMAGE
要約
(EN)


An image coding method includes: selecting a first picture
from plural pictures (S141); setting a first temporal motion vector
prediction flag which is associated with the first picture and is a
temporal motion vector prediction flag indicating whether or not
temporal motion vector prediction is to be used, to indicate that the
temporal motion vector prediction is not to be used, and coding the
first temporal motion vector prediction flag (S142); coding the first
picture without using the temporal motion vector prediction (S143);
and coding a second picture which follows the first picture in coding
order, with referring to a motion vector of a picture preceding the
first picture in coding order being prohibited (S144).