Add DN training into the original DETR

[chenhbo]

Hi, there. Thank you for your NICE work!

Can we directly add the DN training strategy to the original DETR?

In the original DETR, there has no reference point to use. Could u pls give some suggestions?

[FengLi-ust]

Yes, we have tried in our extended DN-DETR version. Please refer to our new arxiv paper

[anaelley]

thanks! Is the code for DN-DETR available?