Coding distortion removal method, video encoding method,...

Details Coding distortion removal method, video encoding method,... Coding distortion removal method, video encoding method,...

H - Electricity

04

N

H04N 7/24 (2011.01) G06T 9/00 (2006.01) H04N 7/50 (2006.01) H04N 7/64 (2006.01)

Patent

CA 2435757

Mosaic-shaped block noise occurs when a compressed video signal is reproduced. This block noise is removed, but removing block noise from every block using a deblocking filter imposes a significant load on the deblocking filter. This load is therefore reduced by determining whether coding distortion removal (deblocking) is necessary, and applying a deblocking filter only when needed.

Selon l'invention, lorsqu'un signal vidéo compressé est lu, un bruit de bloc en forme de mosaïque apparaît. Ce bruit de bloc est éliminé. Toutefois, l'élimination du bruit de bloc de tous les blocs, à l'aide d'un filtre de dégroupage, constitue une charge trop importante pour le filtre de dégroupage. Pour réduire cette charge, il suffit de déterminer s'il est nécessaire d'éliminer (dégrouper) la distorsion de codage et d'utiliser un filtre de dégroupage selon les besoins.

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