CACE: Charged Active Contour
We propose a novel active contour model by incorporating particle
based electrostatic interactions into the geometric active contour
framework. The proposed active contour, embedded in level sets,
propagates under the joint influence of a boundary attraction force
and a boundary competition force. Unlike other contour models, the
proposed vector field dynamically adapts by updating itself when a
contour reaches a boundary. The model is then more invariant to
initialisation and possesses better convergence abilities. We refer to this as
CACE (pronounced 'cake'), a Charged Active Contour based on
CACE is an extension from our previous model CCM. It
introduces a new dynamic force field into CCM and
consequently more flexibility, robustness and independence from model
initialisation. It has
significant advantages over some current models such as geodesic snake Caselles
et al, GVF geodesic snake , and Charged Particle Model (CPM). CACE is
much faster and more efficient in convergence than CPM. More importantly, it
eliminates CPM's tendency to sometimes result in open contours. CACE also has
significant advantages over the geodesic and GVF geodesic snakes in that it is
more robust to initial placement and is able to handle objects of more
More details can be found in the paper (acivs06-cace.pdf).
 Caselles, V., Kimmel, R., Sapiro, G.: Geodesic active contours.
In: ICCV. (1995) 694-699
 Paragios, N., Mellina-Gottardo, O., Ramesh, V.: Gradient vector flow fast geodesic active contours.
IEEE T-PAMI 26 (2004) 402-407
 Jalba, A., Wilkinson, M., Roerdink, J.:CPM: A deformable model for shape recovery and segmentation based
on charged particles.
IEEE T-PAMI 26 (2004) 1320-1335
SNAKES | CACE | PREVIOUS | NEXT