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dc.contributor.authorFigueiredo, I. N.-
dc.contributor.authorFigueiredo, P. N.-
dc.contributor.authorStadler, G.-
dc.contributor.authorGhattas, O.-
dc.contributor.authorAraújo, A.-
dc.identifier.citationPré-Publicações DMUC. 08-35 (2008)en_US
dc.description.abstractThe aim of this paper is to introduce a variational image segmentation method for assessing the aberrant crypt foci (ACF) in the human colon captured in vivo by endoscopy. ACF are thought to be precursors for colorectal cancer, and therefore their early detection may play an important clinical role. We enhance the active contours without edges model of Chan and Vese to account for the ACF’s particular structure. We employ level sets to represent the segmentation boundaries, and discretize in space by finite elements and in (artificial) time by finite differences. The approach is able to identify the ACF, their boundaries, and some of the internal crypts’ orifices.en_US
dc.description.sponsorshipUT Austin | Portugal Programen_US
dc.publisherCentro de Matemática da Universidade de Coimbraen_US
dc.subjectImage segmentationen_US
dc.subjectActive contoursen_US
dc.subjectLevel setsen_US
dc.subjectEndoscopic imagesen_US
dc.titleVariational image segmentation for endoscopic human colonic aberrant crypt focien_US
item.fulltextCom Texto completo- of Sciences and Technology- of Sciences and Technology- of Coimbra- of Coimbra- - Centre for Mathematics of the University of Coimbra- - Centre for Mathematics of the University of Coimbra-
Appears in Collections:FMUC Medicina - Vários
FCTUC Matemática - Vários
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