PC：曲率点

“Point of Curvature”通常缩写为“PC”，这一简称便于快速书写和使用，尤其常见于学术与科学研究领域，尤其是与数学相关的专业场合。它对应的中文术语是“曲率点”，主要用于描述曲线几何学中曲率开始变化的特定位置。

Through the calculation and selection of the extreme points of error and the extreme point of curvature, the B-spline function data points were obtained.
通过对误差极值点、曲率极值点的计算和筛选，得到B样条函数的型值点。
The subaffine elastica is the critical point of the total squared subaffine curvature functional.
次仿射弹性曲线是全平方次仿射曲率泛函的临界点。
For a raised sphere in the plane, the measuring point cloud follows the principle of curvature change. That is, point cloud density in the section of large curvature is larger than that in the section of small curvature.
平面上的凸起球体的测量点云遵循曲率变化原则：曲率大的区域点云密度大，曲率小的区域点云密度小。
The segmentation separates the points in the blend region from the rest of the input point cloud with the processes of reduction of point data, estimation of local surface curvature properties and comparison of maximum curvature values.
在数据分块算法中，通过数据精简、曲率估算和曲率比较等步骤，将过渡区域的数据点从原始点云数据中分离出来；
Matching point sequences are obtained on the basis of curvature analysis by using the dynamic programming algorithm.
利用曲率的几何不变性进行匹配算法研究，用动态规划（Dynamicprogramming）算法找出了匹配点的序列。

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