US 12,363,313 B2
In-loop filtering method and apparatus for same
Seung Wook Park, Seoul (KR); Jae Hyun Lim, Seoul (KR); Jung Sun Kim, Seoul (KR); Joon Young Park, Seoul (KR); Young Hee Choi, Seoul (KR); Byeong Moon Jeon, Seoul (KR); and Yong Joon Jeon, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Filed by LG Electronics Inc., Seoul (KR)
Filed on Jul. 25, 2023, as Appl. No. 18/226,024.
Application 18/226,024 is a continuation of application No. 17/715,903, filed on Apr. 7, 2022, granted, now 11,758,149.
Application 17/715,903 is a continuation of application No. 17/110,110, filed on Dec. 2, 2020, granted, now 11,330,273, issued on May 10, 2022.
Application 17/110,110 is a continuation of application No. 16/572,294, filed on Sep. 16, 2019, granted, now 10,887,603, issued on Jan. 5, 2021.
Application 16/572,294 is a continuation of application No. 14/007,979, granted, now 10,419,764, issued on Sep. 17, 2019, previously published as PCT/KR2012/002345, filed on Mar. 30, 2012.
Claims priority of provisional application 61/470,500, filed on Apr. 1, 2011.
Claims priority of provisional application 61/469,786, filed on Mar. 30, 2011.
Prior Publication US 2023/0370610 A1, Nov. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/157 (2014.01); H04N 19/117 (2014.01); H04N 19/176 (2014.01); H04N 19/182 (2014.01); H04N 19/61 (2014.01); H04N 19/80 (2014.01); H04N 19/82 (2014.01)
CPC H04N 19/157 (2014.11) [H04N 19/117 (2014.11); H04N 19/176 (2014.11); H04N 19/182 (2014.11); H04N 19/61 (2014.11); H04N 19/80 (2014.11); H04N 19/82 (2014.11)] 3 Claims
OG exemplary drawing
 
1. A video decoding apparatus including circuitry configured to perform operations comprising:
receiving video information through a bitstream;
identifying whether an intra pulse code modulation (I_PCM) mode is applied to a current block in a current picture based on the video information;
generating a reconstructed picture including a reconstructed block of the current block based on the video information;
determining whether a deblocking filter is to be applied to the reconstructed block based on a result of the identification;
determining whether a sample adaptive offset (SAO) is to be applied to the reconstructed block based on the result of the identification; and
generating a modified reconstructed picture based on the reconstructed picture and the result of the determination,
wherein based on a case that the I_PCM mode is applied to the current block, the deblocking filter and the SAO are not applied to the reconstructed block,
wherein a coding unit in the current picture is split into multiple coding units (CUs) based on a quad-tree structure,
wherein the current block corresponds to a current coding unit which is one of the multiple CUS,
wherein based on a case that the I_PCM mode is not applied to the current block, the SAO is applied after the deblocking filter on the reconstructed picture, the modified reconstructed picture is generated by applying the deblocking filter and the SAO on the reconstructed picture, a first clipping is applied to a first output of the deblocking filter, a second clipping is applied to a second output of the SAO, and the clipped first output is used as an input of the SAO, and
wherein the applying the deblocking filter on the reconstructed picture comprises:
applying the deblocking filtering based on a boundary strength (bS) with respect to a boundary of reconstructed blocks in the reconstructed picture.