基于变分水平集方法的多相图像分割模型

n innovative model based on variational level set method to segment multiphase images was proposed. Its energy functional is based on both the level set function and the regional characteristics function. It can deal with changes of curves’ topology and be expanded to multiphase image segmentation models which are based on other strategies for region competition as well. The gradient flow of the functional was computed using variational method to get the optimized result of the model. In order for more accurate calculation, discrete definition of level set function was used. Experimental results show that the new model has promising effect on image segmentation.