US 12,301,821 B2
Transform coefficient coding method and device therefor
Sunmi Yoo, Seoul (KR); Seunghwan Kim, Seoul (KR); Jungah Choi, Seoul (KR); Jangwon Choi, Seoul (KR); and Jin Heo, Seoul (KR)
Assigned to Rosedale Dynamics LLC, Wilmington, DE (US)
Filed by Rosedale Dynamics LLC, Wilmington, DE (US)
Filed on Dec. 11, 2023, as Appl. No. 18/536,099.
Application 18/536,099 is a continuation of application No. 17/557,612, filed on Dec. 21, 2021, granted, now 11,843,778.
Application 17/557,612 is a continuation of application No. 17/217,526, filed on Mar. 30, 2021, granted, now 11,240,508, issued on Feb. 1, 2022.
Application 17/217,526 is a continuation of application No. PCT/KR2019/013100, filed on Oct. 7, 2019.
Claims priority of provisional application 62/741,612, filed on Oct. 5, 2018.
Prior Publication US 2024/0205411 A1, Jun. 20, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/132 (2014.01); H04N 19/176 (2014.01); H04N 19/46 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/132 (2014.11) [H04N 19/176 (2014.11); H04N 19/46 (2014.11); H04N 19/70 (2014.11)] 20 Claims
OG exemplary drawing
 
1. An image decoding method performed by a decoding apparatus, the method comprising:
receiving a bitstream including residual information;
obtaining a current block from the bitstream;
deriving transform coefficients for the current block based on the residual information, wherein deriving the transform coefficients comprises:
decoding context syntax elements corresponding to the current block based on a context,
wherein the context syntax elements are coded based on the context, and
wherein the context syntax elements are decoded based on a maximum value corresponding to context-coded bins for the current block; and
deriving residual samples for the current block based on the transform coefficients.