Method and apparatus for video coding

Abstract

A method and apparatus for video coding using prediction refinement are disclosed. According to the method, whether to apply prediction refinement to a target prediction sample of the current block is determined according to a functionality control, a mode control, or a combination thereof. In response to the prediction refinement being applied to the target prediction sample of the current block: one or more offsets for the target prediction sample of the current block are derived based on weights, sample differences associated with a template area, or both, wherein the sample differences associated with the template area are calculated between reconstructed samples and predicted samples associated with the template area; the target prediction sample is refined using said one or more offsets to generate a refined prediction sample; and the current block is encoded or decoded by using the refined prediction sample.

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