发明名称 |
Methods and devices for context modeling to enable modular processing |
摘要 |
Methods of encoding and decoding for video data are described for encoding or decoding coefficients for a transform unit. In particular, the significant-coefficient flags for a coefficient group are encoded and decoded based upon a context determination, and the context is determined based upon the values of neighboring flags. The neighborhood used to determine the context varies depending on whether the significant-coefficient flag to be encoded or decoded is in the right column or bottom row of the coefficient group or not. If it is in the right column or bottom row one of the alternative context neighborhoods is used to avoid relying on significant-coefficient flags in other coefficient groups except for the flags immediately adj acent the right border and bottom border of the coefficient group, and the flag diagonally to the lower-right. |
申请公布号 |
EP2621175(A9) |
申请公布日期 |
2014.03.05 |
申请号 |
EP20130165646 |
申请日期 |
2012.01.20 |
申请人 |
BLACKBERRY LIMITED |
发明人 |
NGUYEN, NGUYEN;JI, TIANYING;HE, DAKE |
分类号 |
H04N7/26;H04N7/50;(IPC1-7):H04N7/26 |
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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