Directional Active Contour Model Based on Curvature Dependent Magnitude with Evaluation System
Qi Zou · Journal of Beijing Jiaotong University · 2010
Active contour models are widely used in many applications,however,most models under active contour framework have two key difficulties.Aiming at this,this paper presents a novel method called curvature-dependent magnitude model(CDM model).Any crude segmentation methods are feasible to provide cues for the CDM model to forecast the moving direction,and the external force magnitude is a related function of curve curvature which makes the model has several advantages as well as avoiding the self-intersection problem.The evaluation system is valid to measure the approximation degree between the result and the real boundary in different convergence cases and different models.The experimental results show that the CDM model is robust and efficient in failure cases of the other models and able to gain good performance on fitting the object boundary in medical images.