An Application of Point Pattern Matching in Astronautics

Helmut Alt, Lars Knipping, Gerald Weber Institut für Informatik Freie Universität Berlin e-mail: Report B 93-16 November 93

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We consider a point pattern matching problem occuring in astronautics: Given are pictures from a camera with unknown orientation, showing a section of the starry sky. We want to determine the orientation of the camera by matching the constellations in the pictures with a star catalogue. This problem occurs for satellite attitude determination with star field sensors. We present a new solution, which uses incremental Delaunay Triangulation.