Could some one provide me sorce for any Faster rcnn tutorial using torchvision. I had gone through one in pytorch docs(https://pytorch.org/tutorials/intermediate/torchvision_tutorial.html) but it left me with many doubts. So if any other good sources are there please help me out.
What kind of doubts do you have? Maybe we could clear them here? 
How to use a different backbone for training.is there any doc explaining that.If you know please let me know