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import torch | ||
import torch.nn as nn | ||
from mypath import Path | ||
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class C3D(nn.Module): | ||
""" | ||
The C3D network. | ||
""" | ||
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def __init__(self, num_classes, pretrained=False): | ||
super(C3D, self).__init__() | ||
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self.conv1 = nn.Conv3d(3, 64, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.pool1 = nn.MaxPool3d(kernel_size=(1, 2, 2), stride=(1, 2, 2)) | ||
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self.conv2 = nn.Conv3d(64, 128, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.pool2 = nn.MaxPool3d(kernel_size=(2, 2, 2), stride=(2, 2, 2)) | ||
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self.conv3a = nn.Conv3d(128, 256, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.conv3b = nn.Conv3d(256, 256, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.pool3 = nn.MaxPool3d(kernel_size=(2, 2, 2), stride=(2, 2, 2)) | ||
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self.conv4a = nn.Conv3d(256, 512, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.conv4b = nn.Conv3d(512, 512, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.pool4 = nn.MaxPool3d(kernel_size=(2, 2, 2), stride=(2, 2, 2)) | ||
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self.conv5a = nn.Conv3d(512, 512, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.conv5b = nn.Conv3d(512, 512, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.pool5 = nn.MaxPool3d(kernel_size=(2, 2, 2), stride=(2, 2, 2), padding=(0, 1, 1)) | ||
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self.fc6 = nn.Linear(8192, 4096) | ||
self.fc7 = nn.Linear(4096, 4096) | ||
self.fc8 = nn.Linear(4096, num_classes) | ||
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self.dropout = nn.Dropout(p=0.5) | ||
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self.relu = nn.ReLU() | ||
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self.__init_weight() | ||
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if pretrained: | ||
self.__load_pretrained_weights() | ||
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def forward(self, x): | ||
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x = self.relu(self.conv1(x)) | ||
x = self.pool1(x) | ||
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x = self.relu(self.conv2(x)) | ||
x = self.pool2(x) | ||
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x = self.relu(self.conv3a(x)) | ||
x = self.relu(self.conv3b(x)) | ||
x = self.pool3(x) | ||
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x = self.relu(self.conv4a(x)) | ||
x = self.relu(self.conv4b(x)) | ||
x = self.pool4(x) | ||
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x = self.relu(self.conv5a(x)) | ||
x = self.relu(self.conv5b(x)) | ||
x = self.pool5(x) | ||
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x = x.view(-1, 8192) | ||
x = self.relu(self.fc6(x)) | ||
x = self.dropout(x) | ||
x = self.relu(self.fc7(x)) | ||
x = self.dropout(x) | ||
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logits = self.fc8(x) | ||
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return logits | ||
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def __load_pretrained_weights(self): | ||
"""Initialiaze network.""" | ||
corresp_name = { | ||
# Conv1 | ||
"features.0.weight": "conv1.weight", | ||
"features.0.bias": "conv1.bias", | ||
# Conv2 | ||
"features.3.weight": "conv2.weight", | ||
"features.3.bias": "conv2.bias", | ||
# Conv3a | ||
"features.6.weight": "conv3a.weight", | ||
"features.6.bias": "conv3a.bias", | ||
# Conv3b | ||
"features.8.weight": "conv3b.weight", | ||
"features.8.bias": "conv3b.bias", | ||
# Conv4a | ||
"features.11.weight": "conv4a.weight", | ||
"features.11.bias": "conv4a.bias", | ||
# Conv4b | ||
"features.13.weight": "conv4b.weight", | ||
"features.13.bias": "conv4b.bias", | ||
# Conv5a | ||
"features.16.weight": "conv5a.weight", | ||
"features.16.bias": "conv5a.bias", | ||
# Conv5b | ||
"features.18.weight": "conv5b.weight", | ||
"features.18.bias": "conv5b.bias", | ||
# fc6 | ||
"classifier.0.weight": "fc6.weight", | ||
"classifier.0.bias": "fc6.bias", | ||
# fc7 | ||
"classifier.3.weight": "fc7.weight", | ||
"classifier.3.bias": "fc7.bias", | ||
} | ||
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p_dict = torch.load(Path.model_dir()) | ||
s_dict = self.state_dict() | ||
for name in p_dict: | ||
if name not in corresp_name: | ||
continue | ||
s_dict[corresp_name[name]] = p_dict[name] | ||
self.load_state_dict(s_dict) | ||
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def __init_weight(self): | ||
for m in self.modules(): | ||
if isinstance(m, nn.Conv3d): | ||
# n = m.kernel_size[0] * m.kernel_size[1] * m.out_channels | ||
# m.weight.data.normal_(0, math.sqrt(2. / n)) | ||
torch.nn.init.kaiming_normal_(m.weight) | ||
elif isinstance(m, nn.BatchNorm3d): | ||
m.weight.data.fill_(1) | ||
m.bias.data.zero_() | ||
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def get_1x_lr_params(model): | ||
""" | ||
This generator returns all the parameters for conv and two fc layers of the net. | ||
""" | ||
b = [model.conv1, model.conv2, model.conv3a, model.conv3b, model.conv4a, model.conv4b, | ||
model.conv5a, model.conv5b, model.fc6, model.fc7] | ||
for i in range(len(b)): | ||
for k in b[i].parameters(): | ||
if k.requires_grad: | ||
yield k | ||
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def get_10x_lr_params(model): | ||
""" | ||
This generator returns all the parameters for the last fc layer of the net. | ||
""" | ||
b = [model.fc8] | ||
for j in range(len(b)): | ||
for k in b[j].parameters(): | ||
if k.requires_grad: | ||
yield k | ||
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if __name__ == "__main__": | ||
inputs = torch.rand(1, 3, 16, 112, 112) | ||
net = C3D(num_classes=101, pretrained=True) | ||
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outputs = net.forward(inputs) | ||
print(outputs.size()) |
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# coding: utf-8 | ||
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import torch.nn as nn | ||
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class C3D(nn.Module): | ||
""" | ||
nb_classes: nb_classes in classification task, 101 for UCF101 dataset | ||
""" | ||
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def __init__(self, nb_classes): | ||
super(C3D, self).__init__() | ||
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self.conv1 = nn.Conv3d(3, 64, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.pool1 = nn.MaxPool3d(kernel_size=(1, 2, 2), stride=(1, 2, 2)) | ||
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self.conv2 = nn.Conv3d(64, 128, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.pool2 = nn.MaxPool3d(kernel_size=(2, 2, 2), stride=(2, 2, 2)) | ||
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self.conv3a = nn.Conv3d(128, 256, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.conv3b = nn.Conv3d(256, 256, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.pool3 = nn.MaxPool3d(kernel_size=(2, 2, 2), stride=(2, 2, 2)) | ||
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self.conv4a = nn.Conv3d(256, 512, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.conv4b = nn.Conv3d(512, 512, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.pool4 = nn.MaxPool3d(kernel_size=(2, 2, 2), stride=(2, 2, 2)) | ||
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self.conv5a = nn.Conv3d(512, 512, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.conv5b = nn.Conv3d(512, 512, kernel_size=(3, 3, 3), padding=(1, 1, 1)) | ||
self.pool5 = nn.MaxPool3d(kernel_size=(2, 2, 2), stride=(2, 2, 2), padding=(0, 1, 1)) | ||
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self.fc6 = nn.Linear(8192, 4096) | ||
self.fc7 = nn.Linear(4096, 4096) | ||
self.fc8 = nn.Linear(4096, nb_classes) | ||
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self.dropout = nn.Dropout(p=0.5) | ||
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self.relu = nn.ReLU() | ||
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def forward(self, x, feature_layer): | ||
h = self.relu(self.conv1(x)) | ||
h = self.pool1(h) | ||
h = self.relu(self.conv2(h)) | ||
h = self.pool2(h) | ||
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h = self.relu(self.conv3a(h)) | ||
h = self.relu(self.conv3b(h)) | ||
h = self.pool3(h) | ||
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h = self.relu(self.conv4a(h)) | ||
h = self.relu(self.conv4b(h)) | ||
h = self.pool4(h) | ||
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h = self.relu(self.conv5a(h)) | ||
h = self.relu(self.conv5b(h)) | ||
h = self.pool5(h) | ||
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h = h.view(-1, 8192) | ||
out = h if feature_layer == 5 else None | ||
h = self.relu(self.fc6(h)) | ||
out = h if feature_layer == 6 and out == None else out | ||
h = self.dropout(h) | ||
h = self.relu(self.fc7(h)) | ||
out = h if feature_layer == 7 and out == None else out | ||
h = self.dropout(h) | ||
logits = self.fc8(h) | ||
return logits, out | ||
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wama_modules/thirdparty_lib/MedicalNet_Tencent/.commitlintrc.yml
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extends: | ||
- "@commitlint/config-conventional" |
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