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from mmcv.cnn import ConvModule
from mmdet.models.builder import HEADS
from .fcn_mask_head import FCNMaskHead
@HEADS.register_module()
class HTCMaskHead(FCNMaskHead):
def __init__(self, with_conv_res=True, *args, **kwargs):
super(HTCMaskHead, self).__init__(*args, **kwargs)
self.with_conv_res = with_conv_res
if self.with_conv_res:
self.conv_res = ConvModule(
self.conv_out_channels,
self.conv_out_channels,
1,
conv_cfg=self.conv_cfg,
norm_cfg=self.norm_cfg)
def init_weights(self):
super(HTCMaskHead, self).init_weights()
if self.with_conv_res:
self.conv_res.init_weights()
def forward(self, x, res_feat=None, return_logits=True, return_feat=True):
if res_feat is not None:
assert self.with_conv_res
res_feat = self.conv_res(res_feat)
x = x + res_feat
for conv in self.convs:
x = conv(x)
res_feat = x
outs = []
if return_logits:
x = self.upsample(x)
if self.upsample_method == 'deconv':
x = self.relu(x)
mask_pred = self.conv_logits(x)
outs.append(mask_pred)
if return_feat:
outs.append(res_feat)
return outs if len(outs) > 1 else outs[0]
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