由于一些图像在强度上非均匀，用C-V模型达不到分割的目的，于是提出了LBF模型，即局部二值拟合能量模型。其基本思想就是以变分形式引入一核函数来定义局部二值拟合能量，从而获得基于边界轮廓模型的局部强度信息。

-Some of the images are non-uniform in intensity, less than the split CV model, so LBF model that local binary fitting energy model. The basic idea is to introduce a form of variational kernel function to define local binary fitting energy, to obtain information based on the local strength of the boundary contour model.