DocumentCode :
2665993
Title :
Region-based enhancement and analysis of SAR images
Author :
Fjørtoft, Roger ; Marthon, Philippe ; Lopes, Armand ; Sery, Franck ; Ducrot-Gambart, Danielle ; Cubero-Castan, Eliane
Author_Institution :
CESBIO, Toulouse, France
Volume :
3
fYear :
1996
fDate :
16-19 Sep 1996
Firstpage :
879
Abstract :
Segmentation plays a key role in many image processing applications, including SAR image analysis. Given a high quality segmentation, important tasks such as adaptive noise filtering and classification can be greatly simplified. However, the presence of a strong, multiplicative noise known as speckle makes edge detection in SAR images very difficult. A new, hybrid segmentation technique has permitted us to obtain segmentations of relatively good quality prior to filtering. This has led us to develop a region-based version of the LMMSE speckle filter. The segmentations may further be used for the classification of raw or filtered images. In this paper we give an overview of the entire scheme, which segments, filters and classifies SAR images. The study is limited to agricultural scenes composed of distinct parcels of relatively homogeneous reflectivity
Keywords :
adaptive filters; edge detection; filtering theory; image classification; image enhancement; image segmentation; radar imaging; speckle; synthetic aperture radar; LMMSE speckle filter; SAR images; adaptive noise filtering; agricultural scenes; classification; edge detection; hybrid segmentation technique; image analysis; image processing; multiplicative noise; region-based enhancement; relatively homogeneous reflectivity; Filters; Image analysis; Image edge detection; Image segmentation; Infrared image sensors; Lubricating oils; Reflectivity; Remote monitoring; Speckle; Synthetic aperture radar;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image Processing, 1996. Proceedings., International Conference on
Conference_Location :
Lausanne
Print_ISBN :
0-7803-3259-8
Type :
conf
DOI :
10.1109/ICIP.1996.560916
Filename :
560916
Link To Document :
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