grid网格 13x13
每个网格:
候选框(anchor)= 5
每个候选框:
(centerx,centery,w,h,conf,cls11,cls12,...cls1n,cls21,cls22,...cls2m)
grid网格 13x13
每个网格:
候选框(anchor)= 5
每个候选框:
(centerx,centery,w,h,conf,cls11,cls12,...cls1n,cls21,cls22,...cls2m)