Denoising Method of SAR Image Based on Curvelet Transform
Chen Xuequan · Jisuanji gongcheng · 2006
A denoising method of SAR image based on Curvelet transform is proposed in this article.Curvelet is a new multiscale transform theory.Curvelet overcomes the limitation of wavelet in analyzing signals with dimension higher than 1-D because it has the character of anisotropy.This article introduces Curvelet theory first and then derivates speckle reducing method of SAR image.It improves the algorithm of Curvelet to reduce its complexity.Comparison is also made with other filtering methods.