发明名称 |
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. |
申请公布号 |
US9031137(B2) |
申请公布日期 |
2015.05.12 |
申请号 |
US201313875273 |
申请日期 |
2013.05.01 |
申请人 |
Texas Instruments Incorporated |
发明人 |
Sze Vivienne;Budagavi Madhukar |
分类号 |
H04N19/00;H04N19/117;H04N19/463;H04N19/86;H04N19/91;H04N19/136;H04N19/17 |
主分类号 |
H04N19/00 |
代理机构 |
|
代理人 |
McLarty Peter K.;Cimino Frank D. |
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 comprising generating a merge flag SAO parameter for the at least one of a plurality of non-overlapping regions, the merge flag indicating whether SAO parameters for a left nearest neighbor non-overlapping region or a top nearest neighbor non-overlapping region are to be applied to the at least one of a plurality of non-overlapping regions, 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. |
地址 |
Dallas TX US |