Merge pull request #105 from zhiqi-li/occupancy

support occupancy prediction

autonomous_driving/occupancy_prediction/projects/mmdet3d_plugin/bevformer/backbones/ops_dcnv3/src/vision.cpp

+/*!
+**************************************************************************************************
+* InternImage
+* Copyright (c) 2022 OpenGVLab
+* Licensed under The MIT License [see LICENSE for details]
+**************************************************************************************************
+* Modified from
+*https://github.com/chengdazhi/Deformable-Convolution-V2-PyTorch/tree/pytorch_1.0.0
+**************************************************************************************************
+*/
+
+#include "dcnv3.h"
+
+PYBIND11_MODULE(TORCH_EXTENSION_NAME, m) {
+    m.def("dcnv3_forward", &dcnv3_forward, "dcnv3_forward");
+    m.def("dcnv3_backward", &dcnv3_backward, "dcnv3_backward");
+}

autonomous_driving/occupancy_prediction/projects/mmdet3d_plugin/bevformer/dense_heads/__init__.py

+from .bevformer_occ_head import BEVFormerOccHead

autonomous_driving/occupancy_prediction/projects/mmdet3d_plugin/bevformer/detectors/__init__.py

+from .bevformer_occ import BEVFormerOcc
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