contour feature

• 轮廓特征

contour feature的用法和样例：

例句

1. Firstly, using self-adaptive curve fitting, 3D contour features were extracted, and 3D contour features were split into a searching structure of octree.
   首先采用自适应曲线拟合技术提取三维轮廓特征，在此基础上建立八叉树数据检索结构。