US 12,137,204 B2
Image component prediction method, encoder, decoder, and storage medium
Yanzhuo Ma, Dongguan (CN); Junyan Huo, Dongguan (CN); Shuai Wan, Dongguan (CN); and Wei Zhang, Dongguan (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed on Sep. 21, 2021, as Appl. No. 17/480,865.
Application 17/480,865 is a continuation of application No. PCT/CN2019/113765, filed on Oct. 28, 2019.
Claims priority of provisional application 62/823,609, filed on Mar. 25, 2019.
Prior Publication US 2022/0007011 A1, Jan. 6, 2022
Int. Cl. H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method for predicting a colour component, applied to a decoder and comprising:
determining a first reference pixel set of a colour component to be predicted of a current block; and
calculating a model parameter of a prediction model according to positions of reference pixels in the first reference pixel set, the prediction model being configured to perform prediction processing on the colour component to be predicted of the current block, wherein the model parameter is determined at least based on a maximum value and a minimum value from luma component neighboring pixel reconstructed values corresponding to a reference block.