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from mmdet.models.builder import HEADS
from mmdet.models.utils import ResLayer, SimplifiedBasicBlock
from .fused_semantic_head import FusedSemanticHead
@HEADS.register_module()
class SCNetSemanticHead(FusedSemanticHead):
"""Mask head for `SCNet <https://arxiv.org/abs/2012.10150>`_.
Args:
conv_to_res (bool, optional): if True, change the conv layers to
``SimplifiedBasicBlock``.
"""
def __init__(self, conv_to_res=True, **kwargs):
super(SCNetSemanticHead, self).__init__(**kwargs)
self.conv_to_res = conv_to_res
if self.conv_to_res:
num_res_blocks = self.num_convs // 2
self.convs = ResLayer(
SimplifiedBasicBlock,
self.in_channels,
self.conv_out_channels,
num_res_blocks,
conv_cfg=self.conv_cfg,
norm_cfg=self.norm_cfg)
self.num_convs = num_res_blocks
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