An Efficient vector quantization algorithm based on 9/7 biorthogonal wavelet

Pan Jianshou; Sun Hongwei

Volume 24 Issue 7

Jul. 2002

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Pan Jianshou, Sun Hongwei . An Efficient vector quantization algorithm based on 9/7 biorthogonal wavelet[J]. Journal of Electronics & Information Technology, 2002, 24(7): 900-904.

Citation:

Pan Jianshou, Sun Hongwei . An Efficient vector quantization algorithm based on 9/7 biorthogonal wavelet[J]. Journal of Electronics & Information Technology, 2002, 24(7): 900-904.

Pan Jianshou, Sun Hongwei . An Efficient vector quantization algorithm based on 9/7 biorthogonal wavelet[J]. Journal of Electronics & Information Technology, 2002, 24(7): 900-904.

Citation:

Pan Jianshou, Sun Hongwei . An Efficient vector quantization algorithm based on 9/7 biorthogonal wavelet[J]. Journal of Electronics & Information Technology, 2002, 24(7): 900-904.

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An Efficient vector quantization algorithm based on 9/7 biorthogonal wavelet

Received Date: 2000-09-12
Rev Recd Date: 2001-04-05
Publish Date: 2002-07-19

Abstract

Abstract

A novel wavelet-based vector quantization (VQ) algorithm is presented in this paper. In this algorithm, first, 9/7 biorthogonal wavelet transform decomposes the original image, then the correlation of the three directions wavelet coefficients is used to construct the band-cross vector. Therefore, the high coding efficiercy is obtained. In addition, a new VQ technology is used in this algorithm to improve the coding efficiency and the quality of the code-book. The experimental results show that this coding scheme, no entropy-coding, can get a reconstruction quality(PSNR32dB) at a very low bit rate(0.142 bpp) with high feasibility.

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References

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