title: Colon unfolding via skeletal subspace deformation.
abstract: We present an efficient method to digitally straighten a colon volume using mesh skinning, a technique well known in computer graphics to deform a polygonal mesh attached to a skeleton hierarchy. In our case, the colon centerline is used as the skeleton structure and the polyhedral model of the lumen as the skin that is to be deformed as the centerline is straightened. Once the colon has been straightened, we use standard rendering techniques to compute the virtual dissection. Our approach is significantly more efficient than previously proposed techniques.
authors.affiliation: Siemens Corporate Research Inc., Princeton, NJ 08540, USA. sandra.sudarsky@siemens.com
authors.forename: Sandra
authors.initials: S
authors.lastname: Sudarsky
authors.forename: Bernhard
authors.initials: B
authors.lastname: Geiger
authors.forename: Christophe
authors.initials: C
authors.lastname: Chefd'hotel
authors.forename: Lutz
authors.initials: L
authors.lastname: Guendel
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D003106:Colon / Q000000981:diagnostic imaging; D023881:Colonography, Computed Tomographic / Q000379:methods*; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D010363:Pattern Recognition, Automated / Q000379:methods*; D011856:Radiographic Image Enhancement / Q000379:methods; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity