Automated registration of terrain range images using surface feature level sets

Frederick W. Wheeler; Richard F. Vaz; David Cyganski

doi:10.1117/12.50355

1 November 1991 Automated registration of terrain range images using surface feature level sets

Frederick W. Wheeler, Richard F. Vaz, David Cyganski

Proceedings Volume 1606, Visual Communications and Image Processing '91: Image Processing; (1991) https://doi.org/10.1117/12.50355
Event: Visual Communications, '91, 1991, Boston, MA, United States

Abstract

A method for registering terrain range images is described. A smooth surface is fit to range data to provide a continuous mapping to second order surface intrinsics. Level sets of such intrinsics are found as features. These features enable two accurate means of comparison: arclength and a circular correlation of the distance from the discrete points on the level set to its centroid. These two methods of feature matching allow a matching algorithm with computational complexity O(N log N). The solution of the transformation from the matches employs a weighted least squares technique and removes matching errors by cross validation. The method is tested on simulated range images and results are given.

Citation Download Citation

Frederick W. Wheeler, Richard F. Vaz, and David Cyganski "Automated registration of terrain range images using surface feature level sets", Proc. SPIE 1606, Visual Communications and Image Processing '91: Image Processing, (1 November 1991); https://doi.org/10.1117/12.50355

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