Speckle Reduction for SAR Image Based on Blind Source Separation
Wei Lin · Jisuanji fangzhen · 2009
In view of the random nature of speckle noise of SAR image,a method based on blind source separation used in statistical signal processing was proposed for wiping off the speckle noise of SAR image in this paper. This method took the kurtosis as the optimizing function of the switching algorithm of blind source separation. In order to get rid of the speckle noise of SAR image,the image was translated into the contourlet area and ameliorated wavelet area,then separated the coefficients of translation area. The experimental results show that the results using this methods are better than that using the other methods of translation area. And the new translation area has preferable results.It materializes that not only a good vision of image was gotten but the quality indices were greatly improved.