A Geometric Interpretation of Weak-Perspective Motion

Authors:
Ilan Shimshoni;Ronen Basri;Ehud Rivlin
Affiliations:
Technion-Israel Institute of Technology, Technion City;The Weizmann Institute of Science, Rehovot, Israel;Technion-Israel Institute of Technology, Technion City
Venue:
IEEE Transactions on Pattern Analysis and Machine Intelligence
Year:
1999

Citing 12
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Abstract

We present a geometric interpretation of the problem of motion recovery from three weak-perspective images. Our interpretation is based on reducing the problem of estimating the motion to a problem of finding triangles on a sphere whose angles are known. Using this geometric interpretation, a simple method to completely recover the motion parameters using three images is developed. The results of running the algorithm on real images are presented. In addition, we describe which of the various motion parameters can be recovered already from two images.