参数活动轮廓模型采用点集或B -样条曲线来表示模型的轮廓线，具有运算效率高的特点。
Parametric active contours represent their contours by the point sets or B-splines, and they have the efficient performance on image segmentation.
使用薄板样条方法，利用两个对应标志点集对眼底、脑等多种医学图像进行弹性配准。
Two elastic registration methods based on two sets of corresponding feature points for human eyeground and brain images are presented.
在第三章，为了得到点到空间曲线距离的快速计算算法，我们研究了利用圆弧样条拟合点集的问题。
In chapter 3, in order to obtain a fast algorithm of computing the foot point of a given point to a spiral curve, we study the problem of circular spline fitting.
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