PT Unknown
AU Sergio Vera
   Debora Gil
   Agnes Borras
   F. Javier Sanchez
   Frederic Perez
   Marius G. Linguraru
TI Computation and Evaluation of Medial Surfaces for Shape Representation of Abdominal Organs
BT Workshop on Computational and Clinical Applications in Abdominal Imaging
PY 2011
BP 223
EP 230
VL 7029
AB Medial representations are powerful tools for describing and parameterizing the volumetric shape of anatomical structures. Existing methods show excellent results when applied to 2D objects, but their quality drops across dimensions. This paper contributes to the computation of medial manifolds in two aspects. First, we provide a standard scheme for the computation of medial manifolds that avoid degenerated medial axis segments; second, we introduce an energy based method which performs independently of the dimension. We evaluate quantitatively the performance of our method with respect to existing approaches, by applying them to synthetic shapes of known medial geometry. Finally, we show results on shape representation of multiple abdominal organs, exploring the use of medial manifolds for the representation of multi-organ relations.
ER