ZHAN Tian-ming, ZHANG Jun, WEI Zhi-hui, et al. Brain Image Segmentation and Bias Field Correction Model Based on Parametric Mutual Information and Fast Algorithm[J]. Acta Electronica Sinica, 2011, 39(12): 2807-2812.
ZHAN Tian-ming, ZHANG Jun, WEI Zhi-hui, et al. Brain Image Segmentation and Bias Field Correction Model Based on Parametric Mutual Information and Fast Algorithm[J]. Acta Electronica Sinica, 2011, 39(12): 2807-2812.DOI:
Due to the intensity inhomogeneous in brain MR image
it is difficult for the traditional methods to obtain accurate segmentation results.In this paper
by using the bias fitting field with Legendre basis
a new parameterize mutual information metric is firstly proposed
and a unified variational model is proposed for the optimizing of segmentation and bias correction.Finally
we present a fast algorithm based on split Bregman iteration methods.Comparative results demonstrate that our method can obtain more accurate segmentation and bias correction results with a faster convergence rate.