Geometrically deformed models

James V. Miller, David E. Breen, William E. Lorensen, Robert M. O'Bara, Michael J. Wozny
1991 Proceedings of the 18th annual conference on Computer graphics and interactive techniques - SIGGRAPH '91  
We propose a new approach to the problem of generating a simple topologically-c losed geometric model from a point-sampled volume data set. We call such a model a Geometrically Deformed Model or GDM. A GDM is created by placing a 'seed' model in the volume data set. The model is then deformed by a relaxation process that minimizes a set of constraints that provides a measure of bow well (be model tits the features in the data. Constraints are associated with each vertex in the model that
more » ... local deformation, interaction between the model and tbe data set. and the shape and topology of tbe model. Once generated, a GDM can be used for visualization. shape recognition, geometric measurements. or subjected to a series of geometric operations. This technique is of special importance because of the advent of nondestructive sensing equipment (CT, MRI ) that generates point samples of true three-dimensional objects.
doi:10.1145/122718.122742 dblp:conf/siggraph/MillerBLOW91 fatcat:rrg6xna2anfo3eke5g72iw34ki