Title:
METHOD AND DEVICE FOR CODING RESIDUAL INFORMATION IN IMAGE CODING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/191261
Kind Code:
A1
Abstract:
According to the present disclosure, an image decoding method performed by a decoding device comprises the steps of: receiving a bitstream including residual information on a current block; deriving the maximum number of context coded bins related to the residual information; decoding syntax elements included in the residual information on the basis of the maximum number of context coded bins; deriving transform coefficients for the current block on the basis of the decoded syntax elements; deriving residual samples for the current block on the basis of the transform coefficients; and generating reconstruction samples for the current block on the basis of the residual samples for the current block, wherein the maximum number of context coded bins is derived on the basis of a position of a last significant coefficient of the current block.
Inventors:
CHOI JUNGAH (KR)
YOO SUNMI (KR)
LIM JAEHYUN (KR)
CHOI JANGWON (KR)
KIM SEUNGHWAN (KR)
YOO SUNMI (KR)
LIM JAEHYUN (KR)
CHOI JANGWON (KR)
KIM SEUNGHWAN (KR)
Application Number:
PCT/KR2023/000097
Publication Date:
October 05, 2023
Filing Date:
January 03, 2023
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04N19/13; H04N19/132; H04N19/176; H04N19/18; H04N19/70
Domestic Patent References:
| WO2020253874A1 | 2020-12-24 | |||
| WO2021136789A1 | 2021-07-08 |
Foreign References:
| KR20200060397A | 2020-05-29 | |||
| KR20220024658A | 2022-03-03 | |||
| US20210385499A1 | 2021-12-09 |
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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