Title :
SAR image heterogeneity and speckle filtering
Author :
Chen, S.B. ; Liu, Jian Guo ; Wang, G.Y. ; Li, Qi
Author_Institution :
HUST State Key Lab. for Multi-spectral Inf. Process. Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
The ratio of the arithmetic to the geometric mean, a general index to test synthetic aperture radar (SAR) image homogeneity, is applied to the speckle reducing algorithm. A novel filter, based on improved speckle reducing anisotropic diffusion, is designed to denoise the SAR image. Experiments validate the effectiveness of the proposed method.
Keywords :
arithmetic; filtering theory; radar imaging; speckle; synthetic aperture radar; SAR image heterogeneity; anisotropic diffusion; arithmetic mean; geometric mean; speckle filtering; synthetic aperture radar;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.0846
