DocumentCode
3414150
Title
Block-wise bivariate shrinkage functions for speckle reduction
Author
Xiaohua, Zhang ; Zhichao, Li ; Jiao, L.C. ; Yang, Zhang
Author_Institution
Key Lab. of Intell. Perception & Image Understanding of the Minist. of Educ. of China, Xidian Univ., Xi´´an, China
Volume
2
fYear
2011
fDate
24-27 Oct. 2011
Firstpage
1570
Lastpage
1573
Abstract
The reduction of speckle in SAR image is important for SAR images processing. In this paper, we present an efficient despeckle algorithm based on dual-tree complex wavelet transform (DTCWT) and bivariate shrinkage functions. A block-wise despeckle method is proposed to exploit the dependence between the coefficient and its neighbours. Experiment results demonstrate that the proposed algorithm shows great advantage in speckle reduction over the original bivariate shrinkage algorithm.
Keywords
radar imaging; synthetic aperture radar; wavelet transforms; DTCWT; SAR image processing; block-wise bivariate shrinkage function; block-wise despeckle method; dual-tree complex wavelet transform; speckle reduction; Discrete wavelet transforms; Noise; Noise reduction; Satellite broadcasting; Speckle; DTCWT bivariate shrinkage block-wise;
fLanguage
English
Publisher
ieee
Conference_Titel
Radar (Radar), 2011 IEEE CIE International Conference on
Conference_Location
Chengdu
Print_ISBN
978-1-4244-8444-7
Type
conf
DOI
10.1109/CIE-Radar.2011.6159863
Filename
6159863
Link To Document