发明名称 |
Apparatus for compression using reversible embedded wavelets |
摘要 |
A method and apparatus for encoding and decoding data is described. The present invention includes a method and apparatus for generating transformed signals in response to input data. In one embodiment, the transformed signals are generated using a reversible wavelet transform. The present invention also includes a method and apparatus for compressing the transformed signals into data representing a losslessly compressed version of the input data. In one embodiment, the present invention decomposes the input data using a non-minimal length reversible filter. The decomposition may be performed using multiple one-dimension filters.
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申请公布号 |
US6222941(B1) |
申请公布日期 |
2001.04.24 |
申请号 |
US19960693649 |
申请日期 |
1996.08.09 |
申请人 |
RICOH CO., LTD.;RICOH CORPORATION |
发明人 |
ZANDI AHMAD;ALLEN JAMES D.;SCHWARTZ EDWARD L.;BOLIEK MARTIN |
分类号 |
G06F17/00;G06F17/14;G06T9/00;H03G7/00;H03H17/02;H03M7/30;H03M7/40;H04N1/41;H04N7/24;H04N7/26;H04N7/30;(IPC1-7):G06K9/36 |
主分类号 |
G06F17/00 |
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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