_base_ = [ '../common/ms-poly_3x_coco-instance.py', '../_base_/models/mask-rcnn_r50_fpn.py' ] model = dict( backbone=dict( _delete_=True, type='RegNet', arch='regnetx_800mf', out_indices=(0, 1, 2, 3), frozen_stages=1, norm_cfg=dict(type='BN', requires_grad=True), norm_eval=True, style='pytorch', init_cfg=dict( type='Pretrained', checkpoint='open-mmlab://regnetx_800mf')), neck=dict( type='FPN', in_channels=[64, 128, 288, 672], out_channels=256, num_outs=5)) optim_wrapper = dict( optimizer=dict(type='SGD', lr=0.02, momentum=0.9, weight_decay=0.00005), clip_grad=dict(max_norm=35, norm_type=2))