PV-RCNN[1] is a 3D Object Detection framework to integrate
3D voxel CNN
andPointNet-based set abstraction
to learn more discriminative point cloud features. The most contributions in this papar is two-stage strategy including thevoxel-to-keypoint
3D scene encoding and thekeypoint-to-grid
RoI feature abstraction. There are some details of reading and implementing it.