Patent ID: 7440878
Filing Date: 2008-10-21
Classification: G06T,G16H,Y10S

Abstract:
1. A method of generating a virtual model of an object, comprising the step of constructing a fused model to represent the variation of the shape of the object in a plurality of configurations, in which: position variation vectors are calculated which describe the variation of a plurality of points in the fused model from their mean positions over all the configurations of the object; the position variation vectors are assigned a weighting factor which represents a measure of their probabilistic confidence; a weighted covariance matrix is constructed to represent the variations; the weighted covariance matrix is operated on to obtain shape variation vectors representing the weighted direction and magnitude of variations; such that the fused model describes how the shape of the object varies as a function of the shape variation vectors scaled by a shape parameter, wherein the fused model is constructed from a conformed data set, obtained by performing the steps of: