Image Despeckling Based on LMMSE Wavelet Shrinkage

被引：0

作者：

Cui, Yanqiu ^{[2
]}

Zhang, Tao ^{[1
]}

Xu, Shuang

Yu, Weimin

机构：

[1] Dalian Nationalities Univ, Coll Electromech & Informat Engn, Dalian, Liaoning Provin, Peoples R China

[2] Dalian Nationalities Univ, Coll Informat & Commun Engn, Dalian, Liaoning Provin, Peoples R China

来源：

PRZEGLAD ELEKTROTECHNICZNY | 2012年 / 88卷 / 7B期

关键词：

synthetic aperture radar (SAR); speckle; wavelet transform; linear minimum mean square error (LMMSE);

D O I：

暂无

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：

A low complexity method for suppressing speckle in synthetic aperture radar (SAR) images is proposed. This method doesn't require the logarithmic transform and is an extension of the linear minimum mean square error (LMMSE) filter to the image wavelet representation. A spatially adaptive shrinkage function is obtained and each modified coefficient is decided separately. Simulation results for the simulated SAR images demonstrate the proposed method outperforms some representative SAR despeckling methods.

引用

页码：269 / 272

页数：4

共 9 条

[1] Speckle removal from SAR images in the undecimated wavelet domain [J].