发明名称 |
Blocktransformationskodierer für willkürlich geformte Bildsegmente |
摘要 |
Signal images on arbitrarily shaped supports are linearly transformed by applying a number of staged processes. The first process consists in decomposing the support into a number of sub supports which have a regular form such as square or rectangular. A linear orthogonal transformation is then applied to each sub support in the second stage and this is followed by a third stage where a regrouping by coefficients according to predetermined criteria takes place. In a final stage, there is an iteration of the transformation on the classes of coefficients formed. |
申请公布号 |
DE69700865(D1) |
申请公布日期 |
2000.01.05 |
申请号 |
DE1997600865 |
申请日期 |
1997.08.13 |
申请人 |
FRANCE TELECOM, PARIS |
发明人 |
DONESCU, IONA;AVARO, OLIVIER;ROUX, CHRISTIAN |
分类号 |
G06T9/00;H03M7/30;H03M7/40;H04N7/26;H04N7/30;(IPC1-7):G06T9/00 |
主分类号 |
G06T9/00 |
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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