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Locally affine registration of free-form surfaces
Feldmar, J. Ayache, N.
INRIA SOPHIA, Sophia Antipolis;

This paper appears in: Computer Vision and Pattern Recognition, 1994. Proceedings CVPR '94., 1994 IEEE Computer Society Conference on
Publication Date: 21-23 Jun 1994
On page(s): 496-501
Meeting Date: 06/21/1994 - 06/23/1994
Location: Seattle, WA, USA
ISBN: 0-8186-5825-8
References Cited: 21
INSPEC Accession Number: 4777974
Digital Object Identifier: 10.1109/CVPR.1994.323872
Current Version Published: 2002-08-06

Abstract
In this paper, we are concentrating on the problem of nonrigid matching of two surfaces described by points. We deform the first surface by attaching to each point a local affine transformation. We ensure that the variation of these affine transformations along the surface is smooth, that the curvature of the deformed surface tends to be preserved and that the corresponding points on the two surfaces tend to be brought nearer. We call this deformation a locally affine deformation. Our framework does not require either a prior parametrization or the knowledge of the topology of the surfaces. It is illustrated with experiments on real biomedical surfaces: faces, brains and hearts

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