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Single versus stereo ERS-1 SAR imagery for planimetric features extraction

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This Letter compares two conventional methods for the extraction of planimetric features: the monoscopic method, using an image and a digital elevation model to generate an ortho-image; and the stereoscopic method, using two images for the three-dimensional reconstruction of the stereoscopic model of the terrain.Feature extraction then occurs in mono or stereoscopic viewing,depending on the method used. When compared with the topographic data, accuracies of the lake shoreline extraction from ERS-1 SAR images show 22m versus 17 m root mean square accuracies with 66 per cent confidence for the monoscopic and stereoscopic methods, respectively. More consistency is also achieved with the stereoscopic method.

Document Type: Research Article


Publication date: December 1, 1997

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