Hello, everyone. I’m gonna train a network in PyTorch to detect small size object like cellphone.I have about 3k target images(Well, a small dataset). And after training, the precison is about 50%(sadly low, and I’ve done the data augmentation like image flip and so on). I have tried methods as much as I know, but it still doesn’t work out.Anyone who has such experience could give me some advice? Thank you so much!