User-Aided Boundary Delineation through the Propagation of Implicit Representations

In this paper we introduce user-defined segmentation constraints within the level set methods. Snake-driven methods are powerful and widely explored techniques for object extraction. Level set representations is a mathematical framework technique to implement such methods. This formulation is implicit, intrinsic and parameter/topology free. Introducing shape-driven knowledge within the level set method for segmentation is a recently explored topic. User interactive constraints are more simplistic forms of prior shape knowledge. To this end, we propose a simple formulation that converts user interaction to objective function terms that aim to guide the segmentation solution through the user edits.

• Type: Conference
• Year: 2003
• Where: MICCAI
• Authors: Nikos Paragios
• Keywords: Level Set Methods, Level Set Representations, Medical Imaging, MICCAI 2003, User-defined Segmentation Constraints