SIGNALING SIGNED BAND OFFSET VALUES FOR SAMPLE ADAPTIVE OFFSET (SAO) FILTERING IN VIDEO CODING

摘要

A method for signaling sample adaptive offset (SAO) band offset syntax elements in a video encoder is provided that includes receiving a plurality of band offset syntax elements, entropy encoding an absolute value of a magnitude of each band offset syntax element in a compressed video bit stream, and entropy encoding a sign of each non-zero band offset syntax element in the compressed video bit stream following the absolute values of the magnitudes.

主权项

1. A method for sample adaptive offset (SAO) filtering and SAO parameter signaling, the method comprising:
determining band sample adaptive offset (SAO) parameters for at least one of a plurality of non-overlapping regions of a reconstructed picture, applying band SAO filtering to the at least one of a plurality of non-overlapping regions of the reconstructed picture according to the determined band SAO parameters; and entropy encoding the determined band SAO parameters in a bit stream, wherein the entropy encoding comprises entropy encoding in the bit stream a sequence of values of magnitudes of SAO band offsets without sign followed by entropy encoding in the bit stream signs of only the non-zero values of the magnitudes of the SAO band offset values.