prior_box层
https://www.jianshu.com/p/5195165bbd06 1.step_w、step_h其实就相当于faster中的feat_stride,也就是把这些点从feature map映射回原图,同时也可以看出min_size、max_size这些都是直接在针对原图来讲的 2.以mobileNet-ssd为例子:https://github.com/chuanqi305/MobileNet-SSD/blob/master/train.prototxt layer { name: " conv11_mbox_priorbox " type: " PriorBox " bottom: " conv11 " bottom: " data " top: " conv11_mbox_priorbox " prior_box_param { min_size: 60.0 aspect_ratio: 2.0 flip: true clip: false variance: 0.1 variance: 0.1 variance: 0.2 variance: 0.2 offset: 0.5 } } layer { name: " conv13_mbox_priorbox " type: " PriorBox " bottom: " conv13 " bottom: " data "