发明名称 |
REVERSIBLE OVERLAP OPERATOR FOR EFFICIENT LOSSLESS DATA COMPRESSION |
摘要 |
An efficient lapped transform is realized using pre- and post-filters (or reversible overlap operators) that are structured of unit determinant component matrice s. The pre- and post-filters are realized as a succession of planar rotational transform s and unit determinant planar scaling transforms. The planar scaling transforms can be implemented using planar shears or lifting steps. Further, the planar rotations and planar shears have an implementation as reversible/lossless operations, giving as a result, a reversible overlap operator.
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申请公布号 |
CA2526366(A1) |
申请公布日期 |
2006.06.17 |
申请号 |
CA20052526366 |
申请日期 |
2005.11.09 |
申请人 |
MICROSOFT CORPORATION |
发明人 |
SRINVASAN, SRIDHAR;TU, CHENGJIE;MALVAR, HENRIQUE SARMENTO |
分类号 |
H04N7/50;H03M7/30 |
主分类号 |
H04N7/50 |
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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