US 12,284,339 B2
Method and device for encoding/decoding image
Dong Gyu Sim, Seoul (KR); Ho Chan Ryu, Seoul (KR); and Yong Jo Ahn, Seoul (KR)
Assigned to Intellectual Discovery Co., Ltd., Seoul (KR)
Filed by Intellectual Discovery Co., Ltd., Seoul (KR)
Filed on Dec. 12, 2023, as Appl. No. 18/537,375.
Application 18/537,375 is a continuation of application No. 17/747,309, filed on May 18, 2022, granted, now 11,882,275.
Application 17/747,309 is a continuation of application No. 16/096,704, granted, now 11,368,682, issued on Jun. 21, 2022, previously published as PCT/KR2017/004192, filed on Apr. 19, 2017.
Claims priority of application No. 10-2016-0051048 (KR), filed on Apr. 26, 2016; application No. 10-2016-0051058 (KR), filed on Apr. 26, 2016; and application No. 10-2016-0054610 (KR), filed on May 3, 2016.
Prior Publication US 2024/0205393 A1, Jun. 20, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/11 (2014.01); H04N 19/105 (2014.01); H04N 19/107 (2014.01); H04N 19/117 (2014.01); H04N 19/124 (2014.01); H04N 19/13 (2014.01); H04N 19/176 (2014.01); H04N 19/513 (2014.01); H04N 19/593 (2014.01); H04N 19/615 (2014.01); H04N 19/635 (2014.01); H04N 19/82 (2014.01); H04N 19/91 (2014.01)
CPC H04N 19/11 (2014.11) [H04N 19/105 (2014.11); H04N 19/107 (2014.11); H04N 19/117 (2014.11); H04N 19/124 (2014.11); H04N 19/13 (2014.11); H04N 19/176 (2014.11); H04N 19/513 (2014.11); H04N 19/593 (2014.11); H04N 19/615 (2014.11); H04N 19/635 (2014.11); H04N 19/82 (2014.11); H04N 19/91 (2014.11)] 7 Claims
OG exemplary drawing
 
1. An image decoding method comprising:
determining whether inter prediction or intra prediction is performed on a current block;
determining an intra prediction mode of the current block based on the intra prediction being performed on the current block;
determining whether to apply a first filter for neighboring samples of the current block based on the intra prediction mode of the current block and a size of the current block;
filtering the neighboring samples to generate filtered neighboring samples based on the determination that the first filter is applied to the neighboring samples;
applying a second filter for the filtered neighboring samples to generate reference samples;
generating a prediction block of the current block based on the reference samples;
generating a residual block of the current block by decoding a bitstream; and
reconstructing the current block based on the prediction block and the residual block,
wherein the second filter is an interpolation filter which uses four samples among the filtered neighboring samples,
wherein the residual block is generated by entropy-decoding residual information included in a bitstream.