How many epochs do I need to train?

[tossy-yossy]

I am trying to train faster rcnn on the Kitti dataset.
I downloaded the Kitti data set and the pretrained resnet50 weights and trained 10 epochs without changing the source code.
(However, I edited the path in kitti_simple_label.txt)
After that, I executed predict_kitty.py, but nothing was detected.
How many epochs do I need to train as accurately as the samples in results_images?
Or tell me the value of loss please.