Title:
IMAGE DECODING METHOD FOR RESIDUAL CODING IN IMAGE CODING SYSTEM, AND APPARATUS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/158052
Kind Code:
A1
Abstract:
An image decoding method performed by a decoding apparatus, according to the present document, comprises the steps of: obtaining a dependent quantization available flag; obtaining a TSRC available flag, on the basis of the dependent quantization available flag; determining a residual coding syntax for a current block, on the basis of the TSRC available flag; obtaining residual information of the determined residual coding syntax for the current block; deriving a residual sample of the current block, on the basis of the residual information; and generating a reconstructed picture, on the basis of the residual sample, wherein the dependent quantization available flag is a flag regarding whether dependent quantization is available, the TSRC available flag is a flag regarding whether TSRC is available, and the TSRC available flag is obtained on the basis of the dependent quantization available flag having a value of 0.
Inventors:
CHOI JUNGAH (KR)
YOO SUNMI (KR)
HEO JIN (KR)
CHOI JANGWON (KR)
KIM SEUNGHWAN (KR)
YOO SUNMI (KR)
HEO JIN (KR)
CHOI JANGWON (KR)
KIM SEUNGHWAN (KR)
Application Number:
PCT/KR2021/001515
Publication Date:
August 12, 2021
Filing Date:
February 05, 2021
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04N19/60; H04N19/124; H04N19/13; H04N19/132; H04N19/139; H04N19/176; H04N19/18; H04N19/70; H04N19/91
Foreign References:
| US20130294524A1 | 2013-11-07 | |||
| KR20180136555A | 2018-12-24 | |||
| US20170127090A1 | 2017-05-04 | |||
| KR20180048929A | 2018-05-10 |
Other References:
Y. KATO (PANASONIC), K. ABE, T. TOMA (PANASONIC): "Non-CE3: Contexts in Chroma transform skip residual coding", 17. JVET MEETING; 20200107 - 20200117; BRUSSELS; (THE JOINT VIDEO EXPLORATION TEAM OF ISO/IEC JTC1/SC29/WG11 AND ITU-T SG.16 ), no. JVET-Q0144 ; m51733, 8 January 2020 (2020-01-08), XP030222699
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
Download PDF: