发明名称 |
Multi-level significance map scanning |
摘要 |
MULTI-LEVEL SIGNIFICANCE MAP SCANNING Methods of encoding and decoding for video data are described in which multi-level significance maps are used in the encoding and decoding processes. The significant coefficient flags that form the significance map are grouped into contiguous groups, and a significant-coefficient-group flag signifies for each group whether that group contains no non-zero significant-coefficient flags. A multi-level scan order may be used in which significant-coefficient flags are scanned group-by-group. The group scan order specifies the order in which the groups are processed, and the scan order specifies the order in which individual significant-coefficient flags within the group are processed. The bitstream may interleave the significant-coefficient-group flags and their corresponding significant coefficient flags, if any. 6841498_1 12 212 426 14 Spatial Transform Entropy - ------ Predictor Processor Quantizer Coder 28 Dequantizer Inverse Transform 20 Processor Coding Mode Selector 36 34 Deblocking Processor Predictor Frame Store |
申请公布号 |
AU2012245178(B2) |
申请公布日期 |
2013.11.28 |
申请号 |
AU20120245178 |
申请日期 |
2012.11.06 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
HE, DAKE;NGUYEN, NGUYEN;JI, TIANYING |
分类号 |
H04N7/26;H04N5/00 |
主分类号 |
H04N7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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