(caffe) faster R-CNN

proposal_layer.py에서 min_size error.

bbox 덤프 떠보면 전부 NaN임.

-> 학습하다 exploded 된 것으로 보임. 

해결방법 : NaN일 때 해결은? lr 다운

/faster-rcnn-py/tools/../lib/fast_rcnn/bbox_transform.py:50: RuntimeWarning: overflow encountered in exp
pred_h = np.exp(dh) * heights[:, np.newaxis]
faster-rcnn-py/tools/../lib/rpn/proposal_layer.py:176: RuntimeWarning: invalid value encountered in greater_equal
keep = np.where((ws >= min_size) & (hs >= min_size))[0]

--------------