Title:
IMAGE CODING METHOD AND DEVICE USING TRANSFORM SKIP FLAG
Document Type and Number:
WIPO Patent Application WO/2020/149648
Kind Code:
A1
Abstract:
An image decoding method according to the present document comprises the steps of: acquiring, from a bitstream, prediction mode information and residual-related information; performing prediction on the basis of the prediction mode information so as to derive prediction samples of a current block; deriving residual samples of the current block on the basis of the residual-related information; and generating reconstructed samples of the current block on the basis of the prediction samples and the residual samples, wherein the residual-related information includes a transform skip flag on the basis of the size of the current block and a maximum transform skip size, the transform skip flag indicates whether a transform skip is applied to the current block, and information about the maximum transform skip size is acquired from the bitstream.
Inventors:
YOO SUNMI (KR)
CHOI JUNGAH (KR)
CHOI JANGWON (KR)
KIM SEUNGHWAN (KR)
CHOI JUNGAH (KR)
CHOI JANGWON (KR)
KIM SEUNGHWAN (KR)
Application Number:
PCT/KR2020/000757
Publication Date:
July 23, 2020
Filing Date:
January 15, 2020
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04N19/61; H04N19/105; H04N19/122; H04N19/132; H04N19/137; H04N19/70
Domestic Patent References:
| WO2018128322A1 | 2018-07-12 |
Foreign References:
| KR20150143585A | 2015-12-23 | |||
| KR101462637B1 | 2014-11-21 | |||
| JPS6143866B2 | 1986-09-30 | |||
| KR20150034131A | 2015-04-02 |
Other References:
See also references of EP 3703376A4
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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