Automated registration of terrain range images using surface feature level sets

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

doi:10.1117/12.50355

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

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

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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.

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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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KEYWORDS

Image processing

Image registration

Visual communications

Signal processing

Data modeling

Algorithm development

Associative arrays

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