Technical Program

Paper Detail

Paper:SPTM-P10.7
Session:Multirate Systems and Denoising
Time:Thursday, May 20, 15:30 - 17:30
Presentation: Poster
Topic: Signal Processing Theory and Methods: Multi-rate Signal Processing & Wavelets
Title: A NEW COMPLEX WAVELET TRANSFORM BY USING RI-SPLINE WAVELET
Authors: Zhong Zhang; Industrial Technology Center of Okayama Prefectrue 
 Hisanaga Fujiwara; Industrial Technology Center of Okayama Prefectrue 
 Hiroshi Toda; Okayama Prefectural University 
 Hiroaki Kawabata; Okayama Prefectural University 
Abstract: In this study, we propose a new complex wavelet, the RI-splinewavelet, which is constructed using spline wavelets for dual-tree DWT. In the RI-spline wavelet, the real and imaginary components become an approximate Hilbert pair to each other.Then we propose a new dual-tree algorithm which uses an interpolation method for providing a half-sample-delay betweenthe two filters of the trees. Finally, we experimentally showthat the translation invariance, which can not be obtained by the ordinary DWT, is obtained by RI-spline wavelet.
 
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