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Using deformable surfaces to segment 3-D images and infer differential structures

Cohen, Isaac; Cohen, Laurent D.; Ayache, Nicholas (1992), Using deformable surfaces to segment 3-D images and infer differential structures, CVGIP. Image Understanding, 56, 2, p. 242-263. http://dx.doi.org/10.1016/1049-9660(92)90041-Z

Type
Article accepté pour publication ou publié
External document link
https://hal.inria.fr/inria-00075157
Date
1992
Journal name
CVGIP. Image Understanding
Volume
56
Number
2
Publisher
Elsevier
Pages
242-263
Publication identifier
http://dx.doi.org/10.1016/1049-9660(92)90041-Z
Metadata
Show full item record
Author(s)
Cohen, Isaac
Cohen, Laurent D.
Ayache, Nicholas
Abstract (EN)
In this paper, we use a 3-D deformable model, which evolves in 3-D images, under the action of internal forces (describing some elasticity properties of the surface), and external forces attracting the surface toward some detected edgels. Our formalism leads to the minimization of an energy which is expressed as a functional. We use a variational approach and a conforming finite element method to actually express the surface in a discrete basis of continuous functions. This leads to reduced computational complexity and better numerical stability. The power of the approach to segmenting 3-D images is demonstrated by a set of experimental results on various complex medical 3-D images. Another contribution of this approach is the possibility to infer easily the differential structure of the segmented surface. As we end up with an analytical description of class ∇∞ of the surface almost every-where, this allows us to compute, for instance, its first and second fundamental forms. From this, one can extract a curvature primal sketch of the surface, including some intrinsic features which can be used as landmarks for 3-D image interpretation.
Subjects / Keywords
3-D images

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