Site Model Construction for the Exploitation of E-o and Sar Images

Algorithms for building site models from electro-optical (E-O) and Synthetic Aperture Radar (SAR) imagery are presented in this paper. First, a detailed procedure for building a 3-D site model from several E-O reconnaissance images is presented. Issues such as initial site model setup, image-to-site-model registration, site model construction, and automatic control point correspondence are addressed. Next, an algorithm for building a wide-area 2-D site model from high-resolution SAR imagery is presented. A three-stage algorithm involving detection of bright pixels in a non-homogeneous background, statistical segmentation of the SAR image into homogeneous regions, and detection of man-made structures, is used for this purpose.

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