add sparsercnn
Summary:
Hi~
We propose a new object detection method: Sparse R-CNN. The code is based on detectron2.
I will appreciate it if detectron2 could include it.
Thanks very much.
Pull Request resolved:
@@ -38,3 +38,5 @@ External projects in the community that use detectron2:
+ [Res2Net backbones](https://github.com/Res2Net/Res2Net-detectron2)
+ [VoVNet backbones](https://github.com/youngwanLEE/vovnet-detectron2)
+ [FsDet](https://github.com/ucbdrive/few-shot-object-detection), Few-Shot Object Detection.
++ [Sparse R-CNN](https://github.com/PeizeSun/SparseR-CNN)
+
