A nonuniform, shift-invariant, and optimal algorithm for Malvar's wavelet decomposition

被引：1

作者：

Carre, P ^{[1
]}

Fernandez-Maloigne, C ^{[1
]}

机构：

[1] IRCOM SIC Lab, UMR CNRS 6615, F-86960 Futuroscope, France

来源：

PROCEEDINGS OF THE IEEE-SP INTERNATIONAL SYMPOSIUM ON TIME-FREQUENCY AND TIME-SCALE ANALYSIS | 1998年

关键词：

D O I：

10.1109/TFSA.1998.721357

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this article, we propose a new decomposition scheme for Malvar's wavelet representation. Our algorithm is nonuniform, shift-invariant and minimal for an information cost function, contrary to the shift-invariant algorithm of Cohen. We propose some restrictions to our algorithm in order to reduce the complexity and permitting us to provide some partitions of the signal in agreement with its structure. This new local trigonometric transform, more adapted than Malvar's decomposition, allows the analysis of the signal and permits one to obtain a satisfying time-frequency representation.

引用

页码：45 / 48

页数：4