Ah-Weii

Results 2 issues of Ah-Weii

https://github.com/hzhupku/DCNet/blob/58b8b09bf6b242ff09239c6489fb814c33d9a19b/maskrcnn_benchmark/config/defaults.py#L105

I am sorry to disturb you, authors. I guess that this error is probably caused by my poor GPU configuration(NVIDIA GTX960M 2G GDDR5). Which codes can I change or optimize...