US 12,457,366 B2
Method and apparatus for decoding imaging related to sign data hiding
Sunmi Yoo, Seoul (KR); Jungah Choi, Seoul (KR); Jin Heo, Seoul (KR); and Jangwon Choi, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Mar. 27, 2024, as Appl. No. 18/618,641.
Application 18/618,641 is a continuation of application No. 17/894,762, filed on Aug. 24, 2022, granted, now 11,973,989.
Application 17/894,762 is a continuation of application No. PCT/KR2021/002409, filed on Feb. 25, 2021.
Claims priority of provisional application 62/982,742, filed on Feb. 27, 2020.
Prior Publication US 2024/0251107 A1, Jul. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/70 (2014.01); H04N 19/132 (2014.01); H04N 19/174 (2014.01); H04N 19/176 (2014.01); H04N 19/46 (2014.01); H04N 19/60 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/132 (2014.11); H04N 19/174 (2014.11); H04N 19/176 (2014.11); H04N 19/46 (2014.11); H04N 19/60 (2014.11)] 7 Claims
OG exemplary drawing
 
1. An image decoding apparatus, comprising:
a memory; and
at least one processor connected to the memory, the at least one processor configured to:
obtain a sign data hiding enabled flag for whether sign data hiding is enabled,
obtain a Transform Skip Residual Coding (TSRC) disabled flag for whether a TSRC syntax is used for a transform skip block in a current slice,
obtain residual information for the transform skip block based on the TSRC disabled flag,
derive residual samples for the transform skip block based on the residual information, and
generate a reconstructed picture based on the residual samples,
wherein, based on a value of the sign data hiding enabled flag being equal to 0, the TSRC disabled flag is obtained from a bitstream,
wherein, based on the value of the sign data hiding enabled flag being equal to 1, the TSRC disabled flag is not obtained from the bitstream and a value of the TSRC disabled flag is derived as 0,
wherein, based on the TSRC disabled flag being equal to 1, a residual coding syntax is used to obtain the residual information for the transform skip block, and
wherein, based on the TSRC disabled flag being equal to 0, the TSRC syntax is used to obtain the residual information for the transform skip block.