US 11,902,509 B2
Method and device for encoding/decoding image, and recording medium storing bit stream
Jin Ho Lee, Daejeon (KR); Hyun Suk Ko, Daejeon (KR); Jung Won Kang, Daejeon (KR); Sung Chang Lim, Daejeon (KR); Ha Hyun Lee, Seoul (KR); Dong San Jun, Daejeon (KR); Seung Hyun Cho, Daejeon (KR); Hui Yong Kim, Daejeon (KR); and Jin Soo Choi, Daejeon (KR)
Assigned to LX Semicon Co., Ltd., (KR)
Filed by LX SEMICON CO., LTD, Daejeon (KR)
Filed on Nov. 10, 2021, as Appl. No. 17/523,025.
Application 17/523,025 is a continuation of application No. 16/336,219, granted, now 11,202,063, previously published as PCT/KR2017/010469, filed on Sep. 22, 2017.
Claims priority of application No. 10-2016-0127874 (KR), filed on Oct. 4, 2016.
Prior Publication US 2022/0070446 A1, Mar. 3, 2022
Int. Cl. H04N 19/105 (2014.01); H04N 19/176 (2014.01); H04N 19/11 (2014.01); H04N 19/119 (2014.01); H04N 19/186 (2014.01); H04N 19/80 (2014.01); H04N 19/91 (2014.01); H04N 19/593 (2014.01); H04N 19/117 (2014.01); H04N 19/51 (2014.01); H04N 19/159 (2014.01); H04N 19/70 (2014.01); H04N 19/96 (2014.01); H04N 19/172 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/11 (2014.11); H04N 19/117 (2014.11); H04N 19/119 (2014.11); H04N 19/159 (2014.11); H04N 19/172 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/51 (2014.11); H04N 19/593 (2014.11); H04N 19/70 (2014.11); H04N 19/80 (2014.11); H04N 19/91 (2014.11); H04N 19/96 (2014.11)] 19 Claims
OG exemplary drawing
 
1. An image decoding method comprising:
deriving an intra prediction mode of a current chroma block;
selecting one or more reference sample lines for a current luma block from a plurality of reference sample lines adjacent to the current luma block in response to the intra prediction mode of the current chroma block being inter-component intra prediction mode, wherein the current luma block corresponds to the current chroma block;
deriving prediction parameters for inter-component intra prediction using the selected one or more reference sample line; and
generating a prediction block by performing inter-component intra prediction for the current chroma block based on the current luma block and the prediction parameters.