The near shift-invariance of the dual-tree complex wavelet transform revisited

被引：35

作者：

Barri, Adriaan ^{[1
,2
]}

Dooms, Ann ^{[1
,2
]}

Schelkens, Peter ^{[1
,2
]}

机构：

[1] Vrije Univ Brussel, Dept Elect & Informat ETRO, B-1050 Brussels, Belgium

[2] Interdisciplinary Inst Broadband Technol IBBT, Dept Future Media & Imaging FMI, B-9050 Ghent, Belgium

来源：

JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS | 2012年 / 389卷 / 02期

关键词：

Dual-tree complex wavelet transform; Modulated; Shift-variance; PAIRS;

D O I：

10.1016/j.jmaa.2012.01.010

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

The dual-tree complex wavelet transform (DT-CWT) is an enhancement of the conventional discrete wavelet transform (DWT) due to a higher degree of shift-invariance and a greater directional selectivity, finding its applications in signal and image processing. This paper presents a quantitative proof of the superiority of the DT-CWT over the DWT in case of modulated wavelets. (C) 2012 Elsevier Inc. All rights reserved.

引用

页码：1303 / 1314

页数：12

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