(type='NASFPN', stack_times=7, norm_cfg=norm_cfg), bbox_head=dict(type='RetinaSepBNHead', num_ins=5, norm_cfg=norm_cfg)) # training and testing settings train_cfg = dict(assigner=dict(neg_iou_thr=0.5)) # dataset settings img_norm_cfg = dict( mean=[123.675, 116.28, 103.53], ...