Three Dimensional Analysis Of Space Imageries

Show simple item record Diefallah, M. A. M. en_US
date.accessioned 2009-11-25T13:07:01Z en_US
date.available 2009-11-25T13:07:01Z en_US
date.issued 1994 en_US
identifier.citation Engineering Journal of Qatar University, 1994, Vol. 7, Pages 83-90. en_US
identifier.uri en_US
description.abstract Space imageries with their low costs and availability for every one, provide a good opportunity for topographic mapping of unmapped or poorly mapped areas around the world particularly in the developing countries. The French SPOT Imaging system is the first space orbiting satellite with stereoscopic capability. Panchromatic stereoscopic pairs with variable base to height ratios are available and can be arranged for any part on the earth's surface. In this investigation, three dimensional coordinates are extracted from SPOT stereoscopic images using two analytical photogrammetric methods. In the first method, a stereoscopic model is formed by using the analytical relative orientation technique. Three dimensional model coordinates, then, were fitted into ground coordinates using a number of mathematical models of coordinates transformation. The second method used is the space intersection, where three dimensional ground coordinates of the intersection point of each two similar rays are computed. This procedure, normally, follows the application of the space resection, where the exterior orientation elements for the two stereoscopic images have to be determined. To assess the accuracy of the extracted three dimensional coordinates, residuals and their root mean square values in a number of check points were computed and analyzed. en_US
language.iso en en_US
publisher Qatar University en_US
subject Engineering: Research & Technology en_US
title Three Dimensional Analysis Of Space Imageries en_US
type Article en_US
identifier.pagination 83-90 en_US
identifier.volume 7 en_US

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