Abstract
We propose an original scheme for the 3D segmentation of multi-echo MR brain images into white matter, gray matter and cerebro-spinal fluid. To take into account complementary, redundancy and eventual conflicts provided by the different echoes, a fusion process based on Evidence theory is used. Such theory, well suited to imprecise and uncertain data, provides great fusion tools. The originality of our method is to include a regularization process by the mean of Dempster’s combination. Adding neighborhood information increases the knowledge. The segmentation is more confident, accurate and efficient. The method is applied to simulated multi-echo data and compared with method based on Markov Random Field theory. The results are very encouraging and show that Evidence theory is well suited to such problematic.
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