22 March 1996 Wavelet packet-based nonlinear speckle reduction in optical synthetic aperture radar image analysis
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Abstract
A new technique for efficient speckle reduction in synthetic aperture radar (SAR) images using wavelet packets is proposed. A phenomenological approach is used in adapting the wavelet packet transform to minimize the speckle coefficients. With thresholding and averaging, the resulting non-linear, multirate filtering can be used to preprocess images for reduction of speckle while retaining contrast in key objects necessary for target classification. An example of the algorithm using a SAR image is provided.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Khan M. Iftekharuddin, Khan M. Iftekharuddin, Theresa A. Tuthill, Theresa A. Tuthill, "Wavelet packet-based nonlinear speckle reduction in optical synthetic aperture radar image analysis", Proc. SPIE 2762, Wavelet Applications III, (22 March 1996); doi: 10.1117/12.236003; https://doi.org/10.1117/12.236003
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