US 11,956,424 B2
Video signal processing method and device using intra prediction filtering
Geonjung Ko, Seoul (KR); Dongcheol Kim, Suwon-Si (KR); Juhyung Son, Uiwang-Si (KR); Jaehong Jung, Seoul (KR); and Jinsam Kwak, Anyang-Si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-do (KR)
Filed on Dec. 27, 2022, as Appl. No. 18/146,642.
Application 18/146,642 is a continuation of application No. 17/333,887, filed on May 28, 2021, granted, now 11,632,543.
Application 17/333,887 is a continuation of application No. PCT/KR2019/016639, filed on Nov. 28, 2019.
Claims priority of application No. 10-2018-0150236 (KR), filed on Nov. 28, 2018; application No. 10-2019-0007196 (KR), filed on Jan. 18, 2019; and application No. 10-2019-0099887 (KR), filed on Aug. 14, 2019.
Prior Publication US 2023/0133365 A1, May 4, 2023
Int. Cl. H04N 19/105 (2014.01); H04N 19/132 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/46 (2014.01); H04N 19/82 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/132 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/46 (2014.11); H04N 19/82 (2014.11)] 1 Claim
OG exemplary drawing
 
1. A video signal decoding device comprising a processor,
wherein the processor is configured to:
determine whether an ISP (Intra Sub Partitions) mode is applied to a current block when intra-prediction is performed on the current block;
generate a reference sample for the current block;
configure a value of a filter flag specifying a filter coefficient of an interpolation filter applied to the reference sample;
generate a prediction sample of the current block by performing filtering for the reference sample by using the interpolation filter having the filter coefficient specified by the filter flag; and
reconstruct the current block on the basis of the prediction sample.