Efficient speckle filtering of SAR images

W. Hagg, M. Sties
Proceedings of IGARSS '94 - 1994 IEEE International Geoscience and Remote Sensing Symposium  
In this paper a new promising method of speckle ltering is described and applied to both, synthetically generated and real SARimages. The new method, which w e call EPOS Edge Preserving Optimized Speckle-lter, is based upon the statistical properties of speckle noise. The knowledge of speckle variance allows the distinction of homogeneous areas from those, containing edges or single scattering targets. This discrimination method is used within a variable sized lter matrix to choose a region,
more » ... ch is suitable for calculating an intensity a v erage, that is typical for the center pixel. Also a method for estimating speckle noise parameters is presented. This work is part of the project RADARMAP OF GERMA-NY, where a land use map from the whole area of Germany i n a 1:200000 scale is produced. This project is sponsored by D ARA.
doi:10.1109/igarss.1994.399674 fatcat:6fqx2jrwljfvnauwxabdkotdhq