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Speckle Noise Reduction in SAR Images using Wavelet Transform

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2007, 12(3), pp.123-130
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science

Lim Dong Hoon 1

1경상대학교

Accredited

ABSTRACT

It is difficult to analyse images because of multiplicative characteristics of speckle noises in SAR images. In this paper, wavelet transform is proposed for restoring SAR images corrupted by speckle noise. The multiplicative noise is transformed into a form of additive noise and then the additive noise is denoised using wavelet thresholding selections such as VisuShrink, SureShrink, BayesShrink and modified BayesShrink. Experimental results on several test images show that the modified BayesShrink yields significantly superior image quality and better Peak Signal to Noise Ratio(PSNR)

Citation status

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