US 12,262,021 B2
Video encoding/decoding method, apparatus, and recording medium having bitstream stored thereon
Sung Chang Lim, Daejeon (KR); Jung Won Kang, Daejeon (KR); Ha Hyun Lee, Seoul (KR); Jin Ho Lee, Daejeon (KR); Hui Yong Kim, Daejeon (KR); Yung Lyul Lee, Seoul (KR); Ji Yeon Jung, Seoul (KR); Nam Uk Kim, Seoul (KR); Myung Jun Kim, Seoul (KR); Yang Woo Kim, Seoul (KR); Dae Yeon Kim, Seoul (KR); Jae Gon Kim, Goyang-si (KR); and Do Hyeon Park, Goyang-si (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR); INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY, Seoul (KR); CHIPS&MEDIA, INC, Seoul (KR); and INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY, Goyang-si (KR)
Filed by Electronics and Telecommunications Research Institute, Daejeon (KR); INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY, Seoul (KR); CHIPS & MEDIA, INC, Seoul (KR); and INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY, Goyang-si (KR)
Filed on Feb. 2, 2024, as Appl. No. 18/431,917.
Application 18/431,917 is a continuation of application No. 17/419,142, granted, now 11,930,179, previously published as PCT/KR2019/018584, filed on Dec. 27, 2019.
Claims priority of application No. 10-2018-0172785 (KR), filed on Dec. 28, 2018; application No. 10-2019-0027494 (KR), filed on Mar. 11, 2019; and application No. 10-2019-0054160 (KR), filed on May 9, 2019.
Prior Publication US 2024/0179320 A1, May 30, 2024
Int. Cl. H04N 19/132 (2014.01); H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01)
CPC H04N 19/132 (2014.11) [H04N 19/105 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11)] 13 Claims
OG exemplary drawing
 
1. A method of decoding an image, comprising:
determining an intra prediction mode of a chroma block; and
generating a prediction block of the chroma block by performing prediction based on the intra prediction mode of the chroma block,
wherein the determining of the intra prediction mode of the chroma block includes: determining whether or not CCLM (Cross-Component Linear Mode) is available for the chroma block based on the chroma block and a luma block related to the chroma block being blocks partitioned in a single tree structure, and
wherein the generating of the prediction block of the chroma block includes: deriving a linear model of the CCLM based on a plurality of reconstructed neighboring samples of the luma block when it is determined that the CCLM is applied to the chroma block.