Paper-info
- title : Focal Loss for Dense Object Detection[ICCV-2017]
- author : Tsung-Yi Lin, Priya Goyal, Ross Girshick, Kaiming He, Piotr Dollar.
Idea
- alpha-balanced formula
, 
Pipeline
Contribution
- 通過引入focal-loss緩解了Faster rcnn存在bbox正負類極不均衡的問題。
- RetinaNet對於gamma的選取具有一定的魯棒性。
Experiment
