Gang Li Lei Guo Jingxin Nie Tianming Liu Automatic Cortical Sulcal Parcellation Based on Surface Principal Direction Flow Field Tracking. 202-214 2009 IPMI http://dx.doi.org/10.1007/978-3-642-02498-6_17 conf/ipmi/2009 db/conf/ipmi/ipmi2009.html#LiGNL09