CLASSIFICATION IN ADAPTIVE LOOP FILTERING

WIPO Patent Application WO/2021/008539

A1

A method of video processing includes determining, for a conversion of a block of a video picture in a video and a bitstream representation of the video, gradients of a subset of samples in a region for a classification operation in a filtering process. The region has a dimension of M×N and the block has a dimension of K×L, M, N, K, L being positive integers. The block is located within the region. The method also includes performing the conversion based on the determining.

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ZHANG LI (US)
ZHANG KAI (US)
LIU HONGBIN (CN)
WANG YUE (CN)

PCT/CN2020/102003

January 21, 2021

July 15, 2020

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BEIJING BYTEDANCE NETWORK TECH CO LTD (CN)
BYTEDANCE INC (US)

H04N19/117; H04N19/136

WO2019131400A1

2019-07-04

CN109600611A	2019-04-09
CN109479130A	2019-03-15
US20190141321A1	2019-05-09

CHEN， CHING-YEH ET AL.: "Description of Core Experiment 5 (CE5): Adaptive Loop Filter", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 13TH MEETING: MARRAKECH， MA, 18 January 2019 (2019-01-18), XP030202509
LIU， HONGBIN ET AL.: "Non-CE5: Padding method for samples at variant boundaries in ALF", JOINT VIDEO EXPERTS TEAM (JVET) OF ITU-T SG 16 WP 3 AND ISO/IEC JTC 1/SC 29/WG 11 15TH MEETING: GOTHENBURG， SE, 12 July 2019 (2019-07-12), XP030220092
See also references of EP 3984219A4

LIU, SHEN & ASSOCIATES (CN)

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