VIDEO PICTURE COMPONENT PREDICTION METHOD AND APPARATUS, AND COMPUTER STORAGE MEDIUM

原文（中文）

Provided are a picture component prediction method and a video component prediction device. The method includes: determining multiple reference samples from samples in one or more neighboring lines at a top side of the current block according to four preset positions, or determining multiple reference samples from samples in one or more neighboring columns at a left side of the current block according to four preset positions; determining multiple first picture component reference values according to the determined multiple reference samples; performing first filtering processing on sample values of samples corresponding to the multiple first picture component reference values, respectively; determining a parameter of a component linear model; performing mapping processing on a reconstructed value of the first picture component of the current block according to the component linear model; and determining a predicted value of the to-be-predicted picture component of the current block.