公式推导【IoUNet//ECCV2018】
Jiang B, Luo R, Mao J, Xiao T, Jiang Y. Acquisition of localization confidence for accurate object detection[C]. //ECCV2018.
公式4的推导：
Jiang B, Luo R, Mao J, Xiao T, Jiang Y. Acquisition of localization confidence for accurate object detection[C]. //ECCV2018.
公式4的推导：