Title:
TRANSFORM COEFFICIENT CODING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/076028
Kind Code:
A1
Abstract:
An image decoding method according to the present document comprises the steps of: receiving a bitstream including residual information; deriving a quantized transform coefficient for a current block on the basis of the residual information included in the bitstream; deriving a residual sample for the current block on the basis of the quantized transform coefficient; and generating a restoration picture on the basis of the residual sample for the current block, wherein the residual information includes position information for indicating the position of a transform coefficient, which is not the last 0 in a transform block, and the position information can be derived if a transform skip is not applied to the transform block.
Inventors:
YOO SUNMI (KR)
KIM SEUNGHWAN (KR)
CHOI JUNGAH (KR)
LI LING (KR)
CHOI JANGWON (KR)
HEO JIN (KR)
KIM SEUNGHWAN (KR)
CHOI JUNGAH (KR)
LI LING (KR)
CHOI JANGWON (KR)
HEO JIN (KR)
Application Number:
PCT/KR2019/013105
Publication Date:
April 16, 2020
Filing Date:
October 07, 2019
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04N19/12; H04N19/124; H04N19/129; H04N19/132; H04N19/18; H04N19/60; H04N19/70
Domestic Patent References:
| WO2013107908A1 | 2013-07-25 | |||
| WO2014071439A1 | 2014-05-15 |
Foreign References:
| KR20180048739A | 2018-05-10 | |||
| KR20180013911A | 2018-02-07 | |||
| JP2018078647A | 2018-05-17 |
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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