Patent ID: 7630550
Filing Date: 2009-12-08
Classification: A61B,G06T

Abstract:
1. A method of segmenting a starting image or sequence of tridimensional images based on voxels for obtaining a tridimensional segmentation image comprising a partition into regions of interest, said image or sequence of images comprising measurements, for each voxel and in a course of n time intervals (n≧1), of a real evolution of a signal representative of at least one variable of physical, chemical or biological type of said image or sequence, which comprises the following steps: a) modeling ( b) extracting ( c) merging of said samples grouping together the samples whose evolution model is specific to the same structure, said merging following, preceding or including a classification of all the voxels of said image or sequence of images or of a zone of interest of the latter by aggregation with a group of samples, in such a manner that a maximum similarity exists between the evolution of said variable for these voxels and the evolution of said model characterizing this group of samples, said segmenting obtained by the merging step.