Xin Zhou

Question about `fc_feature = fc_feature * (scale + 1) + shift` in head.py.

2

Can you explain what dose this mean? https://github.com/ShoufaChen/DiffusionDet/blob/1efb36d4b0b721f2d509bc72656235a94d73ab02/diffusiondet/head.py#L274

Thanks for the inspiring work! But I am confused by the use of not differentiable IoU in the loss function and differentiable GIoU in the matching cost. Or I misunderstanding...