search

yhalk / vw_challenge_ECR

Apache License 2.0
1 stars 0 forks source link

Everything is classified as bg #3

Closed mocialov closed 7 years ago

mocialov commented 7 years ago

Submitted an issue to the original repo: https://github.com/yhenon/keras-frcnn/issues/144

mocialov commented 7 years ago

I wonder if this comment (from https://github.com/yhenon/keras-frcnn/issues/75) is relevant...:

The use of hard negative mining on bg regions is broken currently unfortunately. The issue is that the code tries to maintain a balance of negative and positive samples for training the object classifier (see lines 183-217) of train_frcnn.py. So if it gets no positive regions from the RPN it will just skip training the classifier. One option would be to add a parameter to ignore this balancing - then it could check for proposals from the RPN that overlap the bg regions and train on these?

mocialov commented 7 years ago

I have generated the negative samples from the bigger test images and will train on these now

mocialov commented 7 years ago

It is not an issue