Wavelet transforms that map integers to integers based on lifting scheme

Yong Hong Wu, Quan Pan, Hong Cai Zhang, Shao Wu Zhang, Yun Long Zhang

科研成果: 期刊稿件文章同行评审

1 引用 (Scopus)

摘要

The lifting scheme is a new idea of constructing wavelet filters. Its key element is to find the predict operator and the update operator. The polynomial local regression is used to find these operators in the paper. These lifting steps take integers downwardly. Then the wavelet transforms that map integers to integers are realized. The algorithm is applied to two dimensions digital image processing, and the simulation indicates that compression ratio is high with allowable distortion. The scale coefficients and wavelet coefficients are integers, thus the quantification is not needed. This brings the significant importance of the proposed algorithm for integer data compression.

源语言英语
页(从-至)659-663
页数5
期刊Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology
26
4
出版状态已出版 - 4月 2004

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