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:: Volume 0 - Special Issue for Geomatics 94 ::
JGST 2017, 0 - Special Issue for Geomatics 94: 33-39 Back to browse issues page
Performance Evaluation of Speckle Noise Reduction Methods in Spatial Domain and Wavelet
T. Mohammadzade Zangalani , M. Tavakkoli Sabour , H. R. Riyahi bakhtyari , H. Sadeghi , A. Hoseinypoor
Abstract:   (1216 Views)

In other to use radar images speckle removing or reduction is necessary. Speckle reduction methods have difference performance according to the aim of use. In this paper we implemented Speckle reduction methods on the image in wavelet and spatial domain. For performance evaluated we used RMSE and SNR indexes for test image and SSI indexes for real image. According to the results, wavelet domain methods performance are better than spatial filters. Among the wavelet filters,  2-D Double-Density and Dual-Tree Complex had better performance in total. In evaluated real image performance with SSI index seen a slight difference with test images results. Therefore it is better that SSI index to be used with catious due to the small homogeneous regions in image and compared with test image data and visual interpretation.

Keywords: Speckle, Wavelet, Spatial Filters
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Type of Study: Research | Subject: Photo&RS
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Mohammadzade Zangalani T, Tavakkoli Sabour M, Riyahi bakhtyari H R, Sadeghi H, Hoseinypoor A. Performance Evaluation of Speckle Noise Reduction Methods in Spatial Domain and Wavelet. JGST. 2017;
URL: http://jgst.issge.ir/article-1-604-en.html


Volume 0 - Special Issue for Geomatics 94 Back to browse issues page
نشریه علمی پژوهشی علوم و فنون نقشه برداری Journal of Geomatics Science and Technology