Construction of biorthogonal multiwavelets using the lifting scheme

被引:31
|
作者
Goh, SS [1 ]
Jiang, QT [1 ]
Xia, T [1 ]
机构
[1] Natl Univ Singapore, Dept Math, Singapore 119260, Singapore
关键词
biorthogonal multiwavelets; lifting scheme; optimum time-frequency localization; image compression;
D O I
10.1006/acha.2000.0318
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The lifting scheme has been found to be a flexible method for constructing scalar wavelets with desirable properties. Here it is extended to the construction of multiwavelets. It is shown that any set of compactly supported biorthogonal multiwavelets can be obtained from the Lazy matrix filters with a finite number of lifting steps. As an illustration of the general theory, compactly supported biorthogonal multiwavelets with optimum time-frequency resolution are constructed. In addition, experimental results of applying these multiwavelets to image compression are presented. (C) 2000 Academic Press.
引用
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页码:336 / 352
页数:17
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