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1. WO2010095556 - IMAGE PROCESSING DEVICE AND METHOD

Publication Number WO/2010/095556
Publication Date 26.08.2010
International Application No. PCT/JP2010/052016
International Filing Date 12.02.2010
IPC
H04N 7/32 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
24Systems for the transmission of television signals using pulse code modulation
26using bandwidth reduction
32involving predictive coding
CPC
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
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 19/109
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
109among a plurality of temporal predictive coding modes
H04N 19/117
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
117Filters, e.g. for pre-processing or post-processing
H04N 19/124
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
124Quantisation
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]
Applicants
  • ソニー株式会社 SONY CORPORATION [JP]/[JP] (AllExceptUS)
  • 中神 央二 NAKAGAMI Ohji [JP]/[JP] (UsOnly)
  • 矢ケ崎 陽一 YAGASAKI Yoichi [JP]/[JP] (UsOnly)
Inventors
  • 中神 央二 NAKAGAMI Ohji
  • 矢ケ崎 陽一 YAGASAKI Yoichi
Agents
  • 稲本 義雄 INAMOTO Yoshio
Priority Data
2009-03649719.02.2009JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) IMAGE PROCESSING DEVICE AND METHOD
(FR) DISPOSITIF ET PROCÉDÉ DE TRAITEMENT D'IMAGES
(JA) 画像処理装置および方法
Abstract
(EN)
Provided are an image processing device and method that can improve encoding efficiency while controlling the increase of processing loads. An extraction circuit (71) of a filtering and prediction circuit (64) extracts a motion-compensated image, which is an image for predictive image generation in a high resolution enhancement layer, from the reference frame of a low resolution base layer. A filtering circuit (72) of the filtering and prediction circuit (64) which, using temporal direction analysis and in association with up-conversion, filters a plurality of base layer motion-compensated images extracted by the extraction circuit (71), and generates the predictive image in the enhancement layer. This image processing device can be applied to, for example, coding and decoding equipment.
(FR)
L'invention concerne un dispositif et un procédé de traitement d'images qui permettent d'améliorer efficacement le codage et de commander simultanément l'augmentation des charges de traitement. Selon l'invention, un circuit d'extraction (71) d'un circuit de filtrage et de prédiction (64) extrait une image compensée en mouvement, qui est une image destinée à une génération d'image prédictive dans une couche d'amélioration de haute résolution, à partir de la trame de référence d'une couche de base de faible résolution. Un circuit de filtrage (72) du circuit de filtrage et de prédiction (64) filtre plusieurs images compensées en mouvement de la couche de base extraites par le circuit d'extraction (71), à l'aide d'une analyse de direction temporelle associée à une mise à l'échelle supérieure; et génère l'image prédictive dans la couche d'amélioration. Le dispositif de traitement d'images selon l'invention peut être appliqué, par exemple, à un équipement de codage et de décodage.
(JA)
 本発明は、負荷の増大を抑制しながら符号化効率を向上させることができる画像処理装置および方法に関する。 フィルタリング予測回路64の抽出回路71は、高解像度のエンハンスメントレイヤの予測画像生成用の動き補償画像を、低解像度のベースレイヤの参照フレームから抽出する。フィルタリング予測回路64のフィルタリング回路72は、抽出回路71により抽出された複数のベースレイヤの動き補償画像に対して、アップコンバートを伴う、時間方向の解析を用いるフィルタリングを行い、エンハンスメントレイヤの予測画像を生成する。本発明は、例えば、符号化装置および復号装置に適用することができる。
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