About background training

[lc-git]

Hi,

I have two questions about background model training:

1. I wonder whether I need to train from scratch or train from pretrained model? The pretrained model will make the convergence faster?
2. approximately how many images do we need to train my own model?

[soullessrobot]

Hi,
It seems that you have done some training on your own dataset based on this project, so have you got some progresses recently?
I had some troubles when trying to retrain the models based on my own dataset.
Thanks