QUALCOMM Incorporated
Adaptive loop filter (ALF) coefficients in video coding

Abstract:

Techniques are described for temporal prediction for adaptive loop filter (ALF) in video coding. A video coder may determine that temporal prediction for ALF is enabled for one or more intra coded slices of a picture, determine ALF coefficients for one or more blocks of the one or more intra coded slices, for which the temporal prediction for ALF is enabled, based on ALF coefficients of a previously coded picture or slice, and apply the determined ALF coefficients to the one or more blocks to generate one or more filtered blocks.