SYSTEM AND METHOD FOR VIDEO CODING - PANASONIC IP CORP AMERICA

Title:

SYSTEM AND METHOD FOR VIDEO CODING

Document Type and Number:

WIPO Patent Application WO/2021/054424

Kind Code:

A1

Abstract:

An encoder includes circuitry and memory. The circuitry, in operation, performs CCALF process on a current block. The circuitry sets a first flag indicating whether CCALF process is enabled for a first block, the first block being adjacent to left side of the current block. The circuitry sets a second flag indicating whether CCALF process is enabled for a second block, the second block being adjacent to upper side of the current block. The circuitry sets a third flag indicating CCALF process is enabled for the current block. The circuitry determines a first index associated with a color component of the current block. The circuitry derives a second index indicating a context model using the first flag, the second flag, and the first index, and performs entropy encoding of the third flag indicating whether CCALF process is enabled for the current block using the context model indicated by the second index.

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Inventors:

KUO CHE-WEI
LIM CHONG SOON
TEO HAN BOON
LI JING YA
SUN HAI WEI
WANG CHU TONG
TOMA TADAMASA (JP)
NISHI TAKAHIRO
ABE KIYOFUMI
KATO YUSUKE

Application Number:

PCT/JP2020/035392

Publication Date:

March 25, 2021

Filing Date:

September 18, 2020

Export Citation:

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Assignee:

PANASONIC IP CORP AMERICA (US)

International Classes:

H04N19/82; H04N19/91

Foreign References:

US20170302934A1	2017-10-19
US20180324464A1	2018-11-08

Other References:

MISRA (SHARPLABS) K ET AL: "Cross-Component Adaptive Loop Filter for chroma", no. JVET-O0636, 7 July 2019 (2019-07-07), XP030220123, Retrieved from the Internet [retrieved on 20190707]
BROSS B ET AL: "Versatile Video Coding (Draft 6)", no. m49908, 31 July 2019 (2019-07-31), XP030208568, Retrieved from the Internet [retrieved on 20190731]
C-W KUO (PANASONIC) ET AL: "CE5-related: Unification of CCALF and ALF", no. m50137, 24 September 2019 (2019-09-24), XP030206091, Retrieved from the Internet [retrieved on 20190924]

Attorney, Agent or Firm:

NII, Hiromori et al. (JP)

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