Resolution Enhancement of Digital Elevation Models by Fusion with SAR Intensity Data

Charles McPherson, Homer Pien, and Mukund Desai

Abstract:	The ability to derive three dimensional information of a scene from one or more images of that scene at or near the resolution of the imagery itself would have enormous benefit to the problem of global topographic mapping in order to minimize the quantity of data required for its production. The problem of reconstructing a topographic model of a scene from one or more SAR images is discussed in this paper. Specifically, the algorithm suggested exploits all available information contained in the imagery in order to derive the best estimate of surface topography by incorporating multiple surface estimation techniques in its formation. Furthermore, a variational fusion of this information with actual SAR image intensity (return power) is employed for shape-from- shading to obtain a high resolution estimate of the surface comparable to the resolution of the imagery.
Published in:	Proceedings of the 51st Annual Meeting of The Institute of Navigation (1995) June 5 - 7, 1995 Antlers Doubletree Hotel Colorado Springs, CO
Pages:	633 - 644
Cite this article:	McPherson, Charles, Pien, Homer, Desai, Mukund, "Resolution Enhancement of Digital Elevation Models by Fusion with SAR Intensity Data," Proceedings of the 51st Annual Meeting of The Institute of Navigation (1995), Colorado Springs, CO, June 1995, pp. 633-644.
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