Title :
Multi-model SAR image despeckling
Author :
Wang, Cheng ; Wang, Runsheng
Author_Institution :
Sch. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Hunan, China
fDate :
11/7/2002 12:00:00 AM
Abstract :
A multi-model despeckling approach for SAR image is presented. The chi-squared test is used to segment the image into homogeneous and heterogeneous regions. Then, the heterogeneous regions are separated into subregions, each of which consists of the points with same edge orientations. Homogeneous regions and the separated subregions are despeckled according to their characteristics. Experimental results are reported.
Keywords :
image denoising; image segmentation; radar imaging; speckle; synthetic aperture radar; chi-squared test; edge orientations; heterogeneous image regions; homogeneous image regions; image segmentation; multi-model SAR image despeckling; subregions;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020994
