一种新的Snake模型及其在癌细胞分割中的应用

A New Active Contour Model and Its Application in Cancer Cell Segmentation

提出了一种新的主动轮廓线模型——P-snake(PolarizedSnake)。该模型选取目标中心一点作为原点建立极坐标,用等夹角抽样的n个点描述目标轮廓,通过迭代在图像中找出使得能量最小的轮廓点。将P-snake应用于医学癌变细胞图像的分割中,取得了满意的效果。实验结果表明,P-snake能有效跟踪目标轮廓,具有较强的抗噪能力。

This paper presents a new active contour model——polarized snake (P-snake). By defining polar coordinates with a center point of the object as the origin, P-snake describes the object contour with n points moving along changeless direction angles. Experiments on medical cancerous cell images show that P-snake can track and describe the object contour effectively and has strong anti-noise ability.