3D MRI brain image segmentation based on region restricted EM algorithm

Zhong Li; Jianping Fan

doi:10.1117/12.770973

11 March 2008 3D MRI brain image segmentation based on region restricted EM algorithm

Zhong Li, Jianping Fan

Proceedings Volume 6914, Medical Imaging 2008: Image Processing; 69140O (2008) https://doi.org/10.1117/12.770973
Event: Medical Imaging, 2008, San Diego, California, United States

Abstract

This paper presents a novel algorithm of 3D human brain tissue segmentation and classification in magnetic resonance image (MRI) based on region restricted EM algorithm (RREM). The RREM is a level set segmentation method while the evolution of the contours was driven by the force field composed by the probability density functions of the Gaussian models. Each tissue is modeled by one or more Gaussian models restricted by free shaped contour so that the Gaussian models are adaptive to the local intensities. The RREM is guaranteed to be convergency and achieving the local minimum. The segmentation avoids to be trapped in the local minimum by the split and merge operation. A fuzzy rule based classifier finally groups the regions belonging to the same tissue and forms the segmented 3D image of white matter (WM) and gray matter (GM) which are of major interest in numerous applications. The presented method can be extended to segment brain images with tumor or the images having part of the brain removed with the adjusted classifier.

Citation Download Citation

Zhong Li and Jianping Fan "3D MRI brain image segmentation based on region restricted EM algorithm", Proc. SPIE 6914, Medical Imaging 2008: Image Processing, 69140O (11 March 2008); https://doi.org/10.1117/12.770973

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