João Paulo da Silva Cunha Miguel T. Coimbra P. Campos José M. Soares Automated Topographic Segmentation and Transit Time Estimation in Endoscopic Capsule Exams. 19-27 2008 27 IEEE Trans. Med. Imaging 1 http://dx.doi.org/10.1109/TMI.2007.901430 db/journals/tmi/tmi27.html#CunhaCCS08