Question about Faster-RCNN model

[zhouhuan2005]

Quick Question about the Faster-RCNN model.
In your code, regarding the Faster-RCNN model, how does the pre-trained model original come from? Did you train it within these code or convert it from Caffe2/Detectron pre-trained Faster-RCNN model?
if you used the second approache, please kindly let me know how to do it. That's would be helpful to us.
Thanks.