sodalone

Results 3 issues of sodalone

Could you please provide more detail for the depth pre-training? I want to know the difference between pre-training and training's focs-head! thanks a lot, it will be very helpful!

Hello author, I found that in the assign_box.py, the code without the assign_box_cuda is not given, can I ask for the function assign_box(), and the code that can be used...

![image](https://user-images.githubusercontent.com/41614693/227905343-2fe72d8a-fa3f-47af-96cc-a57cbe5e45ce.png)