Detection of recent faulting and evaluation of the vertical offsets from numerical analysis of SAR-ERS-1 images: the example of the Atacama fault zone in northern Chile

Catherine Mering; Jean Chorowicz; Jean-Claude Vicente; Cherif Chalah; Gaelle Rafalli

doi:10.1117/12.226823

17 November 1995 Detection of recent faulting and evaluation of the vertical offsets from numerical analysis of SAR-ERS-1 images: the example of the Atacama fault zone in northern Chile

Catherine Mering, Jean Chorowicz, Jean-Claude Vicente, Cherif Chalah, Gaelle Rafalli

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Proceedings Volume 2587, Geographic Information Systems, Photogrammetry, and Geological/Geophysical Remote Sensing; (1995) https://doi.org/10.1117/12.226823
Event: Satellite Remote Sensing II, 1995, Paris, France

Abstract

Usually the analysis of high resolution satellite images such as radar SAR ERS-1 images is undertaken by photo-interpretation techniques in order to reveal geological features. The numerical image processing is based on a filtering method designed for a better identification of geological structures on SAR images. The method leads to a mapping of recent faults on which the vertical offset is quantified. As examples, steeply dipping active faults with abrupt scarps are extracted from SAR-ERS1 images of the Central Andes (Atacama Fault zone, Northern Chile). The fault throws are then evaluated with a specific numerical image processing.

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Catherine Mering, Jean Chorowicz, Jean-Claude Vicente, Cherif Chalah, and Gaelle Rafalli "Detection of recent faulting and evaluation of the vertical offsets from numerical analysis of SAR-ERS-1 images: the example of the Atacama fault zone in northern Chile", Proc. SPIE 2587, Geographic Information Systems, Photogrammetry, and Geological/Geophysical Remote Sensing, (17 November 1995); https://doi.org/10.1117/12.226823

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KEYWORDS

Radar

Synthetic aperture radar

Image filtering

Image processing

Antennas

Image analysis

Image segmentation

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