Nonparametric alternatives based on the Wilcoxon-Mann-Whitney statistics are evaluated for edge detection in synthetic aperture radar (SAR) images. First, the power of the nonparametric test is compared to that of the ratio-of-averages detector. Then, a nonparametric change-point test is evaluated to identify the true edge position inside a fixed window.
['M. Beauchemin', 'K. P. B. Thomson', 'Geoffrey Edwards']
On nonparametric edge detection in multilook SAR images