发明名称 |
Adaptive size filter for efficient computation of wavelet packet trees |
摘要 |
This invention describes a novel method and system that implements wavelet packet trees and inverse wavelet packet trees. A modified Recursive Pyramid Algorithm (RPA) is advanced by this invention. The algorithm uses a filter that changes its size at each given octave of the wavelet packet tree. This filter may also be used in the reconstruction, synthesis, or inverse wavelet packet tree using RPA. The invention reduces the cost of implementing wavelet packet trees by using the same hardware for each octave and thereby offers superior products at attractive prices.
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申请公布号 |
US6581081(B1) |
申请公布日期 |
2003.06.17 |
申请号 |
US20000489767 |
申请日期 |
2000.01.24 |
申请人 |
3COM CORPORATION |
发明人 |
MESSERLY SHAYNE;COOKLEV TODOR |
分类号 |
G06F17/14;H03H21/00;(IPC1-7):G06F17/10 |
主分类号 |
G06F17/14 |
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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