8Su R, Cyril J, Jinghao X, et al. Brain tissue classification of magnetic resonance imaging using partial volume modeling [J]. IEEE Trans Med Imag, 2002, 8:1179-1187.
9Bostjan L, Max V. Retrospective correction of MR intensity inhomogenity by information minimization [J]. IEEE Trans Med Imag,2001, 12: 1398-1420.