US 12,477,112 B2
Method and apparatus for processing video signal
Bae Keun Lee, Seoul (KR)
Assigned to KT CORPORATION, Gyeonggi-do (KR)
Filed by KT CORPORATION, Gyeonggi-do (KR)
Filed on Feb. 28, 2024, as Appl. No. 18/590,174.
Application 16/935,772 is a division of application No. 16/328,858, granted, now 10,764,583, issued on Sep. 1, 2020, previously published as PCT/KR2017/009526, filed on Aug. 31, 2017.
Application 18/590,174 is a continuation of application No. 17/856,380, filed on Jul. 1, 2022, granted, now 11,962,774.
Application 17/856,380 is a continuation of application No. 16/935,772, filed on Jul. 22, 2020, granted, now 11,412,223, issued on Aug. 9, 2022.
Claims priority of application No. 10-2016-0112127 (KR), filed on Aug. 31, 2016.
Prior Publication US 2024/0205403 A1, Jun. 20, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/124 (2014.01); H04N 19/103 (2014.01); H04N 19/119 (2014.01); H04N 19/13 (2014.01); H04N 19/159 (2014.01); H04N 19/174 (2014.01); H04N 19/176 (2014.01); H04N 19/196 (2014.01); H04N 19/44 (2014.01); H04N 19/60 (2014.01); H04N 19/96 (2014.01)
CPC H04N 19/124 (2014.11) [H04N 19/103 (2014.11); H04N 19/119 (2014.11); H04N 19/13 (2014.11); H04N 19/159 (2014.11); H04N 19/174 (2014.11); H04N 19/176 (2014.11); H04N 19/196 (2014.11); H04N 19/44 (2014.11); H04N 19/60 (2014.11); H04N 19/96 (2014.11)] 7 Claims
OG exemplary drawing
 
1. A method for decoding a video, the method comprising:
obtaining a residual coefficient of a current transform block;
inverse-quantizing the residual coefficient;
determining a transform type set of the current transform block;
obtaining a residual sample of the current transform block by performing inverse-transform for the current transform block based on the transform type set; and
obtaining a reconstruction sample by summing the residual sample and a prediction sample,
wherein, in response to a case where a coding block including the current transform block is partitioned into two transform blocks, the transform type set of the current transform block is determined differently between when the coding block is partitioned in a horizontal direction and when the coding block is partitioned in a vertical direction, and
wherein the coding block is obtained based on a tree-based block division including at least one of a quad division or a binary division.