https://github.com/Tsinghua-MARS-Lab/Occ3D
https://github.com/FANG-MING/occupancy-for-nuscenes
https://github.com/haomo-ai/Cam4DOcc
https://github.com/chaytonmin/UniScene
https://github.com/NVlabs/FB-BEV
https://github.com/DanielMing123/InverseMatrixVT3D/tree/main