Multiple-image Sar Shape From Shading

We describe a technique for combining radar image shape-from-shading with stereo radargrammetry to produce terrain surface models using multiple SAR images. This technique is expected to be of use to reconstruct surface shape from Magellan images of planet Venus, and to refine the results of terrestrial radar measurements. Local variation in pixel shading in an indicator of terrain slope changes. This variation in pixel shading offers an opportunity for increasing the detail of terrain mapping. Shape-from-shading can potentially provide a relative change in height at each pixel. This leads to a dense set of height measurements and a more faithful rendition of the local terrain shapes

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