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.
机构:
IBM CORP, THOMAS J WATSON RES CTR, DEPT MATH SCI, YORKTOWN HTS, NY 10598 USAIBM CORP, THOMAS J WATSON RES CTR, DEPT MATH SCI, YORKTOWN HTS, NY 10598 USA
Dahmen, W
Micchelli, CA
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机构:
IBM CORP, THOMAS J WATSON RES CTR, DEPT MATH SCI, YORKTOWN HTS, NY 10598 USAIBM CORP, THOMAS J WATSON RES CTR, DEPT MATH SCI, YORKTOWN HTS, NY 10598 USA
机构:
IBM CORP, THOMAS J WATSON RES CTR, DEPT MATH SCI, YORKTOWN HTS, NY 10598 USAIBM CORP, THOMAS J WATSON RES CTR, DEPT MATH SCI, YORKTOWN HTS, NY 10598 USA
Dahmen, W
Micchelli, CA
论文数: 0引用数: 0
h-index: 0
机构:
IBM CORP, THOMAS J WATSON RES CTR, DEPT MATH SCI, YORKTOWN HTS, NY 10598 USAIBM CORP, THOMAS J WATSON RES CTR, DEPT MATH SCI, YORKTOWN HTS, NY 10598 USA