发明名称 |
CONTEXT-BASED ADAPTIVE VARIABLE LENGTH CODING FOR ADAPTIVE BLOCK TRANSFORMS |
摘要 |
A method and system for coding an image using context-based adaptive VLC where transform coefficients are partitioned into blocks having a block dimension of 4nx4m (with n, m being positive integer equal to or greater than 1). Each block is scanned in a zigzag manner to produce an ordered vector of coefficients having a length of 16nxm. The ordered vector is sub-sampled in an interleaved manner to produce nxm sub-sampled sequences of transform coefficients prior to encoding the transform coefficients using an entropy encoder. |
申请公布号 |
CA2498384(C) |
申请公布日期 |
2011.06.21 |
申请号 |
CA20032498384 |
申请日期 |
2003.08.19 |
申请人 |
NOKIA CORPORATION |
发明人 |
KARCZEWICZ, MARTA;RIDGE, JUSTIN |
分类号 |
G06K9/46;H04N7/26;G06T9/00;H03M7/40;H04N1/413;H04N7/50 |
主分类号 |
G06K9/46 |
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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