Title :
Adaptive speckle filtering by multiresolution analysis
Author :
Belhadj, Ziad ; Ben Jebara, Sofia ; Maatar, Hedi
Abstract :
Speckle appearing in SAR images as a granular noise must be reduced for best image classification and interpretation. In this paper, two techniques for speckle reduction are presented, they are the adaptive prediction technique and the multiresolution thresholding technique. When taking into account the compromise between speckle reduction and texture preservation, some limitations in term of rate of speckle reduction are observed. In order to improve results, an efficient algorithm combining the two separate techniques is presented
Keywords :
adaptive signal processing; geophysical signal processing; geophysical techniques; image classification; image resolution; image texture; radar imaging; remote sensing by radar; speckle; synthetic aperture radar; terrain mapping; SAR image; adaptive prediction technique; adaptive signal processing; adaptive speckle filtering; algorithm; geophysical measurement technique; granular noise; image classification; image resolution; land surface; multiresolution analysis; multiresolution thresholding; radar imaging; radar remote sensing; speckle reduction; synthetic aperture radar; terrain mapping; texture preservation; Adaptive filters; Filtering; Image segmentation; Least squares approximation; Multiresolution analysis; Noise reduction; Pixel; Predictive models; Rendering (computer graphics); Speckle;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International
Conference_Location :
Hamburg
Print_ISBN :
0-7803-5207-6
DOI :
10.1109/IGARSS.1999.774589
