Sciweavers

Share
MICCAI
2006
Springer

Detection of Protrusions in Curved Folded Surfaces Applied to Automated Polyp Detection in CT Colonography

12 years 10 months ago
Detection of Protrusions in Curved Folded Surfaces Applied to Automated Polyp Detection in CT Colonography
Over the past years many computer aided diagnosis (CAD) schemes have been presented for the detection of colonic polyps in CT Colonography. The vast majority of these methods (implicitly) model polyps as approximately spherical protrusions. Polyp shape and size varies greatly, however and is often far from spherical. We propose a shape and size invariant method to detect suspicious regions. The method works by locally deforming the colon surface until the second principal curvature is smaller than or equal to zero. The amount of deformation is a quantitative measure of the 'protrudeness'. The deformation field allows for the computation of various additional features to be used in supervised pattern recognition. It is shown how only a few features are needed to achieve 95% sensitivity at 10 false positives (FP) per dataset for polyps larger than 6 mm.
Cees van Wijk, Vincent Frans van Ravesteijn, Frans
Added 14 Nov 2009
Updated 14 Nov 2009
Type Conference
Year 2006
Where MICCAI
Authors Cees van Wijk, Vincent Frans van Ravesteijn, Frans Vos, Roel Truyen, Ayso H. de Vries, Jaap Stoker, Lucas J. van Vliet
Comments (0)
books