3 Commits

Author	SHA1	Message	Date
Nikhila Ravi	ff8d4762f4	(new) CUDA IoU for 3D boxes ... Summary: CUDA implementation of 3D bounding box overlap calculation. Reviewed By: gkioxari Differential Revision: D31157919 fbshipit-source-id: 5dc89805d01fef2d6779f00a33226131e39c43ed	2021-09-29 18:49:09 -07:00
Nikhila Ravi	53266ec9ff	C++ IoU for 3D Boxes ... Summary: C++ Implementation of algorithm to compute 3D bounding boxes for batches of bboxes of shape (N, 8, 3) and (M, 8, 3). Reviewed By: gkioxari Differential Revision: D30905190 fbshipit-source-id: 02e2cf025cd4fa3ff706ce5cf9b82c0fb5443f96	2021-09-29 17:03:43 -07:00
Nikhila Ravi	2293f1fed0	IoU for 3D boxes ... Summary: I have implemented an exact solution for 3D IoU of oriented 3D boxes. This file includes: * box3d_overlap: which computes the exact IoU of box1 and box2 * box3d_overlap_sampling: which computes an approximate IoU of box1 and box2 by sampling points within the boxes Note that both implementations currently do not support batching. Our exact IoU implementation is based on the fact that the intersecting shape of the two 3D boxes will be formed by segments of the surface of the boxes. Our algorithm computes these segments by reasoning whether triangles of one box are within the second box and vice versa. We deal with intersecting triangles by clipping them. Reviewed By: gkioxari Differential Revision: D30667497 fbshipit-source-id: 2f747f410f90b7f854eeaf3036794bc3ac982917	2021-09-29 13:44:10 -07:00