发明名称 |
SIGN CODING FOR BLOCKS WITH TRANSFORM SKIPPED |
摘要 |
Methods of encoding and decoding sign information for non-zero coefficients in a block of video with transform skipped. The methods include context-based coding of a flag that signals if all signs are the same in the block; using a finite state machine to determine contexts for coding of sign information, some of which may be context-based coded and some of which may be non-context-based coded; context-based coding of sign information wherein the context is based upon the signs of neighbouring coefficients; context-based coding of sign information, where the sign information is a prediction of the sign; and using a dedicated context to code signs with a sign flag indicating whether signs in a transform skipping block have been inverted to preserve a dominant sign bias. |
申请公布号 |
EP3056000(A4) |
申请公布日期 |
2017.03.01 |
申请号 |
EP20140852091 |
申请日期 |
2014.10.09 |
申请人 |
BlackBerry Limited |
发明人 |
WANG, Jing;HE, Dake;FLYNN, David |
分类号 |
H04N19/70;H04N19/136;H04N19/176;H04N19/18;H04N19/189;H04N19/60;H04N19/625 |
主分类号 |
H04N19/70 |
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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