Signal compression by bitree-search-based wavelet transform

Zhang Lei; Pan Quan; Zhang Hongcai; Dai Guanzhong

Volume 24 Issue 5

May 2002

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Article Navigation > Journal of Electronics & Information Technology > 2002 > 24(5): 615-620

Zhang Lei, Pan Quan, Zhang Hongcai, Dai Guanzhong . Signal compression by bitree-search-based wavelet transform[J]. Journal of Electronics & Information Technology, 2002, 24(5): 615-620.

Citation:

Zhang Lei, Pan Quan, Zhang Hongcai, Dai Guanzhong . Signal compression by bitree-search-based wavelet transform[J]. Journal of Electronics & Information Technology, 2002, 24(5): 615-620.

Zhang Lei, Pan Quan, Zhang Hongcai, Dai Guanzhong . Signal compression by bitree-search-based wavelet transform[J]. Journal of Electronics & Information Technology, 2002, 24(5): 615-620.

Citation:

Zhang Lei, Pan Quan, Zhang Hongcai, Dai Guanzhong . Signal compression by bitree-search-based wavelet transform[J]. Journal of Electronics & Information Technology, 2002, 24(5): 615-620.

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Signal compression by bitree-search-based wavelet transform

Received Date: 2000-06-16
Rev Recd Date: 2001-09-26
Publish Date: 2002-05-19

Abstract

Abstract

ODWT (Orthogonal Discrete Wavelet Transform) is translation-variant, which will depress the compression efficiency. To avoid the deficiency, by holding all the even and odd indexed subsamples in every scale, a bitree structure is formed here. From any route of the bitree the signal can be reconstructed. According to sonic given criterion, a best transform route can be determined. The simulations show that the compression performance of the best transform route is better than that of the ordinary ODWT.

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References

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