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Wavelet Based Speckle Reduction with Applications to SAR based ATD/R

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Title: Wavelet Based Speckle Reduction with Applications to SAR based ATD/R
Author: Guo, Haitao; Odegard, Jan E.; Lang, Markus; Gopinath, Ramesh A.; Selesnick, Ivan W.; Burrus, C. Sidney
Type: Conference Paper
Keywords: Temporary
Citation: H. Guo, J. E. Odegard, M. Lang, R. A. Gopinath, I. W. Selesnick and C. S. Burrus,"Wavelet Based Speckle Reduction with Applications to SAR based ATD/R," in IEEE International Conference on Image Processing,
Abstract: This paper introduces a novel speckle reduction method based on thresholding the wavelet coefficients of the logarithmically transformed image. The method is computational efficient and can sinificantly reduce the speckle while preserving the resolution of the original image. Both soft and hard thresholding schemes are studied and the results are compared. When fully polarimetric SAR images are available, we proposed several approaches to combine the data from different polorizations to achieve even better performance. Wavelet processed imagery is shown to provide better detection performance for synthetic-aperture radar (SAR) based automatic target detection/recognition (ATD/R)problem.
Date Published: 1994-11-20

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  • ECE Publications [1047 items]
    Publications by Rice University Electrical and Computer Engineering faculty and graduate students
  • DSP Publications [508 items]
    Publications by Rice Faculty and graduate students in digital signal processing.