Relief reconstruction from SAR stereo pairs: the "optimal gradient" matching method

The authors present a method for improving relief reconstruction from SAR stereo images, relying on preprocessing of input data with an optimal filter. This filter strongly reduces speckle noise and enhances relief structures, leading to better matching results. The method was tested using X-SAR dat...

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Bibliographic Details
Published in:IEEE transactions on geoscience and remote sensing 1999-07, Vol.37 (4), p.2099-2107
Main Authors: Paillou, P., Gelautz, M.
Format: Article
Language:English
Subjects:
Adaptive optics
Applied geophysics
Cosmochemistry. Extraterrestrial geology
Discrete element method
Earth sciences
Earth, ocean, space
Exact sciences and technology
Extraterrestrial geology
Filters
Geometrical optics
Image reconstruction
Internal geophysics
Laser radar
Matching
Noise
Optical scattering
Optimization
Preprocessing
Radar imaging
Reconstruction
Speckle
Stereo image processing
Stereo vision
Synthetic aperture radar
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Description
Summary:The authors present a method for improving relief reconstruction from SAR stereo images, relying on preprocessing of input data with an optimal filter. This filter strongly reduces speckle noise and enhances relief structures, leading to better matching results. The method was tested using X-SAR data of a mountainous site whose DEM was available for control.
ISSN:0196-2892
1558-0644
DOI:10.1109/36.774720