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1. WO2004006587 - INTRA CODING VIDEO DATA METHODS AND APPARATUSES

Publication Number WO/2004/006587
Publication Date 15.01.2004
International Application No. PCT/US2003/018963
International Filing Date 12.06.2003
IPC
G06T 9/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
9Image coding
H04N 7/34 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
34using spatial prediction
CPC
H04N 19/593
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
50using predictive coding
593involving spatial prediction techniques
Applicants
  • REALNETWORKS, INC. [US]/[US] (AllExceptUS)
  • CONKLIN, Gregory, J. [US]/[US] (UsOnly)
Inventors
  • CONKLIN, Gregory, J.
Agents
  • AUYEUNG, Aloysius, T., C.
Priority Data
60/394,52408.07.2002US
60/414,21027.09.2002US
60/415,44701.10.2002US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) INTRA CODING VIDEO DATA METHODS AND APPARATUSES
(FR) PROCEDES ET APPAREILS DE CODAGE INTRA DE DONNEES VIDEO
Abstract
(EN)
Streamlined prediction approaches are provided to predict pixel values of a 4x4 subblock of a macroblock of video data being encoded, under a number of prediction modes. Additionally, prediction approaches are provided to predict pixel values of a non-4x4 MxN subblock of a macroblock of video data being encoded, under a number of prediction modes, including 8x8, 8x4 and 4x8 subblocks. The invention may be practiced in an encoder and/or a decoder of a video apparatus.
(FR)
L'invention concerne des approches de prédiction simplifiées en vue de prédire des valeurs de pixel d'un sous-bloc 4x4 d'un macrobloc de données vidéo codé, dans un certain nombre de modes de prédiction. En outre, ces approches de prédiction permettent de prédire des valeurs de pixel d'un sous-bloc MxN non 4x4 d'un macrobloc de données vidéo codé, dans un certain modes de prédiction, notamment des sous-blocs 8x8, 8x4 et 4x8. Cette invention peut être utilisée dans un codeur et/ou un décodeur d'un appareil vidéo.
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