Two pass quantization for cabac coders

Details Two pass quantization for cabac coders Two pass quantization for cabac coders

H - Electricity

04

N

H04N 7/26 (2006.01)

Patent

CA 2713143

This disclosure describes techniques for quantizing coefficients of a video block for a video coding process that supports context-based adaptive binary arithmetic coding (CABAC). A method may comprise estimating a last non-zero coeffi-cient of the video block, and generating a set of quantized coefficients for the video block based on an assumption that the esti-mated last non-zero coefficient is actually the last non-zero coefficient of the video block.

Linvention concerne des techniques pour quantifier des coefficients dun bloc vidéo pour un processus de codage vidéo qui supporte un codage arithmétique linéaire adaptatif à base de contexte (CABAC). Un procédé peut comprendre lestimation dau moins un coefficient non nul du bloc vidéo, et la génération dun jeu de coefficients quantifiés pour le bloc vidéo en supposant que le dernier coefficient non nul estimé est effectivement le dernier coefficient non nul du bloc vidéo.

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