Next, the feature points are extracted via the adjacent corner and the curvature extreme value. Then segment the point cloud into blocks with the region growing based on the constraint of feature points. Finally, the surface reconstruction of scattered point cloud is studied. 然后,利用相邻角和曲率极值法把特征点提取出来,再用基于特征点约束的区域增长法完成对点云数据的分块。最后,对散乱点云的曲面重建方法进行了研究。