文章目录

• 1. 四个问题
• 2. 论文介绍
• 3. 参考资料
• 4. 收获

1. 四个问题

1. 解决什么问题

• 有监督点云学习
• local局部特征的学习

2. 用什么方法解决

• inspired by triangle meshes and umbrella curvature in computer graphics
• 显式构造其它特征更好表达局部形状

3. 效果如何
   提升非常大，
   classification（ModelNet40-94.7）, segmentation, and detection

4. 还存在什么问题
   ？

2. 论文介绍

之前的工作：Most prior work represents the shapes of point clouds by coordinates. However, it is insufficient to describe the local geometry directly

动机/启发：inspired by triangle meshes and umbrella curvature in computer graphics

PointNet 和 PointNet++ 的缺陷：However, both methods learn from sta