US 12,081,735 B2
Video signal processing method and device
Geonjung Ko, Seoul (KR); Dongcheol Kim, Suwon-Si (KR); Juhyung Son, Uiwang-Si (KR); Jaehong Jung, Seoul (KR); and Jinsam Kwak, Uiwang-si (KR)
Assigned to WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., Seongnam-si (KR)
Appl. No. 17/629,385
Filed by WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., Seongnam-si (KR)
PCT Filed Jul. 24, 2020, PCT No. PCT/KR2020/009783
§ 371(c)(1), (2) Date Jan. 23, 2022,
PCT Pub. No. WO2021/015586, PCT Pub. Date Jan. 28, 2021.
Claims priority of application No. 10-2019-0090519 (KR), filed on Jul. 25, 2019; application No. 10-2019-0111060 (KR), filed on Sep. 6, 2019; and application No. 10-2019-0124933 (KR), filed on Oct. 9, 2019.
Prior Publication US 2022/0279162 A1, Sep. 1, 2022
Int. Cl. H04N 19/105 (2014.01); H04N 19/132 (2014.01); H04N 19/159 (2014.01); H04N 19/167 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/33 (2014.01); H04N 19/593 (2014.01); H04N 19/139 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/132 (2014.11); H04N 19/159 (2014.11); H04N 19/167 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/33 (2014.11); H04N 19/593 (2014.11); H04N 19/139 (2014.11)] 14 Claims
OG exemplary drawing
 
1. A method for decoding a video signal, the method comprising:
obtaining chroma component format information from a higher-level bitstream;
obtaining width-related information (SubWidthC) and height-related information (SubHeightC) based on the chroma component format information;
obtaining x-axis scale information based on the width-related information or information on a color component of a current block;
obtaining y-axis scale information based on the height-related information or information on the color component of the current block;
determining a location of a left block based on the y-axis scale information;
determining a location of an upper block based on the x-axis scale information;
determining a weighting value based on the left block and the upper block;
obtaining first samples by predicting the current block in a merge mode;
obtaining second samples by predicting the current block in an intra mode; and
obtaining a combination prediction sample for the current block based on the weighting value, the first samples, and the second samples.