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import torch
from collections import OrderedDict
import torch
import torch.nn as nn
def make_layers(block, no_relu_layers):
layers = []
for layer_name, v in block.items():
if 'pool' in layer_name:
layer = nn.MaxPool2d(kernel_size=v[0], stride=v[1],
padding=v[2])
layers.append((layer_name, layer))
else:
conv2d = nn.Conv2d(in_channels=v[0], out_channels=v[1],
kernel_size=v[2], stride=v[3],
padding=v[4])
layers.append((layer_name, conv2d))
if layer_name not in no_relu_layers:
layers.append(('relu_'+layer_name, nn.ReLU(inplace=True)))
return nn.Sequential(OrderedDict(layers))
class bodypose_model(nn.Module):
def __init__(self):
super(bodypose_model, self).__init__()
# these layers have no relu layer
no_relu_layers = ['conv5_5_CPM_L1', 'conv5_5_CPM_L2', 'Mconv7_stage2_L1',\
'Mconv7_stage2_L2', 'Mconv7_stage3_L1', 'Mconv7_stage3_L2',\
'Mconv7_stage4_L1', 'Mconv7_stage4_L2', 'Mconv7_stage5_L1',\
'Mconv7_stage5_L2', 'Mconv7_stage6_L1', 'Mconv7_stage6_L1']
blocks = {}
block0 = OrderedDict([
('conv1_1', [3, 64, 3, 1, 1]),
('conv1_2', [64, 64, 3, 1, 1]),
('pool1_stage1', [2, 2, 0]),
('conv2_1', [64, 128, 3, 1, 1]),
('conv2_2', [128, 128, 3, 1, 1]),
('pool2_stage1', [2, 2, 0]),
('conv3_1', [128, 256, 3, 1, 1]),
('conv3_2', [256, 256, 3, 1, 1]),
('conv3_3', [256, 256, 3, 1, 1]),
('conv3_4', [256, 256, 3, 1, 1]),
('pool3_stage1', [2, 2, 0]),
('conv4_1', [256, 512, 3, 1, 1]),
('conv4_2', [512, 512, 3, 1, 1]),
('conv4_3_CPM', [512, 256, 3, 1, 1]),
('conv4_4_CPM', [256, 128, 3, 1, 1])
])
# Stage 1
block1_1 = OrderedDict([
('conv5_1_CPM_L1', [128, 128, 3, 1, 1]),
('conv5_2_CPM_L1', [128, 128, 3, 1, 1]),
('conv5_3_CPM_L1', [128, 128, 3, 1, 1]),
('conv5_4_CPM_L1', [128, 512, 1, 1, 0]),
('conv5_5_CPM_L1', [512, 38, 1, 1, 0])
])
block1_2 = OrderedDict([
('conv5_1_CPM_L2', [128, 128, 3, 1, 1]),
('conv5_2_CPM_L2', [128, 128, 3, 1, 1]),
('conv5_3_CPM_L2', [128, 128, 3, 1, 1]),
('conv5_4_CPM_L2', [128, 512, 1, 1, 0]),
('conv5_5_CPM_L2', [512, 19, 1, 1, 0])
])
blocks['block1_1'] = block1_1
blocks['block1_2'] = block1_2
self.model0 = make_layers(block0, no_relu_layers)
# Stages 2 - 6
for i in range(2, 7):
blocks['block%d_1' % i] = OrderedDict([
('Mconv1_stage%d_L1' % i, [185, 128, 7, 1, 3]),
('Mconv2_stage%d_L1' % i, [128, 128, 7, 1, 3]),
('Mconv3_stage%d_L1' % i, [128, 128, 7, 1, 3]),
('Mconv4_stage%d_L1' % i, [128, 128, 7, 1, 3]),
('Mconv5_stage%d_L1' % i, [128, 128, 7, 1, 3]),
('Mconv6_stage%d_L1' % i, [128, 128, 1, 1, 0]),
('Mconv7_stage%d_L1' % i, [128, 38, 1, 1, 0])
])
blocks['block%d_2' % i] = OrderedDict([
('Mconv1_stage%d_L2' % i, [185, 128, 7, 1, 3]),
('Mconv2_stage%d_L2' % i, [128, 128, 7, 1, 3]),
('Mconv3_stage%d_L2' % i, [128, 128, 7, 1, 3]),
('Mconv4_stage%d_L2' % i, [128, 128, 7, 1, 3]),
('Mconv5_stage%d_L2' % i, [128, 128, 7, 1, 3]),
('Mconv6_stage%d_L2' % i, [128, 128, 1, 1, 0]),
('Mconv7_stage%d_L2' % i, [128, 19, 1, 1, 0])
])
for k in blocks.keys():
blocks[k] = make_layers(blocks[k], no_relu_layers)
self.model1_1 = blocks['block1_1']
self.model2_1 = blocks['block2_1']
self.model3_1 = blocks['block3_1']
self.model4_1 = blocks['block4_1']
self.model5_1 = blocks['block5_1']
self.model6_1 = blocks['block6_1']
self.model1_2 = blocks['block1_2']
self.model2_2 = blocks['block2_2']
self.model3_2 = blocks['block3_2']
self.model4_2 = blocks['block4_2']
self.model5_2 = blocks['block5_2']
self.model6_2 = blocks['block6_2']
def forward(self, x):
out1 = self.model0(x)
out1_1 = self.model1_1(out1)
out1_2 = self.model1_2(out1)
out2 = torch.cat([out1_1, out1_2, out1], 1)
out2_1 = self.model2_1(out2)
out2_2 = self.model2_2(out2)
out3 = torch.cat([out2_1, out2_2, out1], 1)
out3_1 = self.model3_1(out3)
out3_2 = self.model3_2(out3)
out4 = torch.cat([out3_1, out3_2, out1], 1)
out4_1 = self.model4_1(out4)
out4_2 = self.model4_2(out4)
out5 = torch.cat([out4_1, out4_2, out1], 1)
out5_1 = self.model5_1(out5)
out5_2 = self.model5_2(out5)
out6 = torch.cat([out5_1, out5_2, out1], 1)
out6_1 = self.model6_1(out6)
out6_2 = self.model6_2(out6)
return out6_1, out6_2
class handpose_model(nn.Module):
def __init__(self):
super(handpose_model, self).__init__()
# these layers have no relu layer
no_relu_layers = ['conv6_2_CPM', 'Mconv7_stage2', 'Mconv7_stage3',\
'Mconv7_stage4', 'Mconv7_stage5', 'Mconv7_stage6']
# stage 1
block1_0 = OrderedDict([
('conv1_1', [3, 64, 3, 1, 1]),
('conv1_2', [64, 64, 3, 1, 1]),
('pool1_stage1', [2, 2, 0]),
('conv2_1', [64, 128, 3, 1, 1]),
('conv2_2', [128, 128, 3, 1, 1]),
('pool2_stage1', [2, 2, 0]),
('conv3_1', [128, 256, 3, 1, 1]),
('conv3_2', [256, 256, 3, 1, 1]),
('conv3_3', [256, 256, 3, 1, 1]),
('conv3_4', [256, 256, 3, 1, 1]),
('pool3_stage1', [2, 2, 0]),
('conv4_1', [256, 512, 3, 1, 1]),
('conv4_2', [512, 512, 3, 1, 1]),
('conv4_3', [512, 512, 3, 1, 1]),
('conv4_4', [512, 512, 3, 1, 1]),
('conv5_1', [512, 512, 3, 1, 1]),
('conv5_2', [512, 512, 3, 1, 1]),
('conv5_3_CPM', [512, 128, 3, 1, 1])
])
block1_1 = OrderedDict([
('conv6_1_CPM', [128, 512, 1, 1, 0]),
('conv6_2_CPM', [512, 22, 1, 1, 0])
])
blocks = {}
blocks['block1_0'] = block1_0
blocks['block1_1'] = block1_1
# stage 2-6
for i in range(2, 7):
blocks['block%d' % i] = OrderedDict([
('Mconv1_stage%d' % i, [150, 128, 7, 1, 3]),
('Mconv2_stage%d' % i, [128, 128, 7, 1, 3]),
('Mconv3_stage%d' % i, [128, 128, 7, 1, 3]),
('Mconv4_stage%d' % i, [128, 128, 7, 1, 3]),
('Mconv5_stage%d' % i, [128, 128, 7, 1, 3]),
('Mconv6_stage%d' % i, [128, 128, 1, 1, 0]),
('Mconv7_stage%d' % i, [128, 22, 1, 1, 0])
])
for k in blocks.keys():
blocks[k] = make_layers(blocks[k], no_relu_layers)
self.model1_0 = blocks['block1_0']
self.model1_1 = blocks['block1_1']
self.model2 = blocks['block2']
self.model3 = blocks['block3']
self.model4 = blocks['block4']
self.model5 = blocks['block5']
self.model6 = blocks['block6']
def forward(self, x):
out1_0 = self.model1_0(x)
out1_1 = self.model1_1(out1_0)
concat_stage2 = torch.cat([out1_1, out1_0], 1)
out_stage2 = self.model2(concat_stage2)
concat_stage3 = torch.cat([out_stage2, out1_0], 1)
out_stage3 = self.model3(concat_stage3)
concat_stage4 = torch.cat([out_stage3, out1_0], 1)
out_stage4 = self.model4(concat_stage4)
concat_stage5 = torch.cat([out_stage4, out1_0], 1)
out_stage5 = self.model5(concat_stage5)
concat_stage6 = torch.cat([out_stage5, out1_0], 1)
out_stage6 = self.model6(concat_stage6)
return out_stage6
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