人脸检测和识别以及检测中loss学习 - 14 - VarGFaceNet: An Efficient Variable Group Convolutional Neural Network for Lightweight Face Recognition - 2 - 代码
根据https://github.com/zma-c-137/VarGFaceNet中mxnet的版本的模型
写出pytorch的版本的模型
varGFaceNet.py:
#coding:utf-8 import torch.nn as nn import torch def l2_norm(input,axis=1): norm = torch.norm(input,2,axis,True) output = torch.div(input, norm) return output class se_block(nn.Module): def __init__(self, channels, reduction): super(se_block, self).__init__() self.avg_pool = nn.AdaptiveAvgPool2d(1) self.fc1 = nn.Conv2d(channels, channels//reduction, kernel_size=1, stride=1, padding=0, bias=False) self.relu = nn.PReLU(channels//reduction) self.fc2 = nn.Conv2d(channels//reduction, channels, kernel_size=1, stride=1, padding=0, bias=False) self.sigmoid = nn.Sigmoid() def forward(self, x): module_input = x x = self.avg_pool(x) x = self.fc1(x) x = self.relu(x) x = self.fc2(x) x = self.sigmoid(x) return module_input * x class separable_conv2d(nn.Module): def __init__(self, in_channels, out_channels, kernel_size, padding, expansion=1, stride=1,dw_bn_out=True, dw_relu_out=True, pw_bn_out=True, pw_relu_out=True, group_base=8): super(separable_conv2d, self).__init__() #depthwise assert in_channels % group_base == 0 self.dw_conv = nn.Conv2d(in_channels, in_channels*expansion, kernel_size=kernel_size, stride=stride, padding=padding, bias=False, groups=in_channels//group_base) if dw_bn_out: self.dw_bn = nn.BatchNorm2d(in_channels*expansion) else: self.dw_bn = nn.Sequential() if dw_relu_out: self.dw_relu = nn.PReLU(in_channels*expansion) else: self.dw_relu = nn.Sequential() #pointwise self.pw_conv = nn.Conv2d(in_channels*expansion, out_channels, kernel_size=1, stride=1, padding=0, bias=False) if pw_bn_out: self.pw_bn = nn.BatchNorm2d(out_channels) else: self.pw_bn = nn.Sequential() if pw_relu_out: self.pw_relu = nn.PReLU(out_channels) else: self.pw_relu = nn.Sequential() def forward(self, x): x = self.dw_conv(x) x = self.dw_bn(x) x = self.dw_relu(x) x = self.pw_conv(x) x = self.pw_bn(x) x = self.pw_relu(x) return x #Norm Block class vargnet_block(nn.Module): def __init__(self, channels_1, channels_2, channels_3, reduction, expansion=2, multiplier=1, kernel_size=3, stride=1, dilate=1, dim_match=True, use_se=True): super(vargnet_block, self).__init__() pad = ((kernel_size-1) *dilate + 1) // 2 if not dim_match: self.short_cut = separable_conv2d(int(channels_1*multiplier), int(channels_3*multiplier), kernel_size=kernel_size, padding=pad, expansion=expansion, stride=stride, pw_relu_out=False) else: self.short_cut = nn.Sequential() self.part_1 = separable_conv2d(int(channels_1*multiplier), int(channels_2*multiplier), kernel_size=kernel_size, padding=pad, expansion=expansion, stride=stride) self.part_2 = separable_conv2d(int(channels_2*multiplier), int(channels_3*multiplier), kernel_size=kernel_size, padding=pad, expansion=expansion, stride=1, pw_relu_out=False) if use_se: self.se = se_block(int(channels_3*multiplier), reduction) else: self.se = nn.Sequential() self.relu = nn.PReLU(int(channels_3*multiplier)) def forward(self, x): short_cut_data = self.short_cut(x) x = self.part_1(x) x = self.part_2(x) x = self.se(x) x = self.relu(short_cut_data+x) return x #Down sampling block class vargnet_branch_merge_block(nn.Module): def __init__(self, channels_1, channels_2, channels_3, expansion=2, multiplier=1, kernel_size=3, stride=2, dilate=1, dim_match=False): super(vargnet_branch_merge_block, self).__init__() pad = ((kernel_size-1) *dilate + 1) // 2 if not dim_match: self.short_cut = separable_conv2d(int(channels_1*multiplier), int(channels_3*multiplier), kernel_size=kernel_size, padding=pad, expansion=expansion, stride=stride, pw_relu_out=False) else: self.short_cut = nn.Sequential() self.part_1_branch_1 = separable_conv2d(int(channels_1*multiplier), int(channels_2*multiplier), kernel_size=kernel_size, padding=pad, expansion=expansion, stride=stride, pw_relu_out=False) self.part_1_branch_2 = separable_conv2d(int(channels_1*multiplier), int(channels_2*multiplier), kernel_size=kernel_size, padding=pad, expansion=expansion, stride=stride, pw_relu_out=False) self.relu_1 = nn.PReLU(int(channels_2*multiplier)) self.part_2 = separable_conv2d(int(channels_2*multiplier), int(channels_3*multiplier), kernel_size=kernel_size, padding=pad, expansion=expansion, stride=1, pw_relu_out=False) self.relu_2 = nn.PReLU(int(channels_3*multiplier)) def forward(self, x): short_cut_data = self.short_cut(x) x_branch_1 = self.part_1_branch_1(x) x_branch_2 = self.part_1_branch_2(x) x = self.relu_1(x_branch_1+x_branch_2) x = self.part_2(x) x = self.relu_2(short_cut_data+x) return x #Down sampling block(1个) + Norm Block(n个) class add_vargnet_conv_block(nn.Module): def __init__(self, in_channels, out_channels, norm_block_number, reduction, expansion=2, multiplier=1, kernel_size=3, stride=2, dilate=1): super(add_vargnet_conv_block, self).__init__() self.down_sample_block = vargnet_branch_merge_block(in_channels, out_channels, out_channels, expansion=expansion, multiplier=multiplier, kernel_size=kernel_size, stride=stride, dilate=dilate, dim_match=False) norm_blocks = [] for i in range(norm_block_number-1): norm_blocks.append(vargnet_block(out_channels, out_channels, out_channels, reduction, expansion=expansion, multiplier=multiplier, kernel_size=kernel_size, stride=1, dilate=dilate, dim_match=True, use_se=True)) self.norm_blocks_layer = nn.Sequential(*norm_blocks) def forward(self, x): x = self.down_sample_block(x) x = self.norm_blocks_layer(x) return x #Head_seeting class add_head_block(nn.Module): def __init__(self, channels, multiplier, reduction, kernel_size=3, stride=1, padding=1): super(add_head_block, self).__init__() self.conv1 = nn.Conv2d(3, int(channels*multiplier), kernel_size=kernel_size, stride=stride, padding=padding, bias=False) self.bn1 = nn.BatchNorm2d(int(channels*multiplier)) self.relu1 = nn.PReLU(int(channels*multiplier)) self.head = vargnet_block(channels, channels, channels, reduction, expansion=1, multiplier=multiplier, kernel_size=kernel_size, stride=2, dim_match=False, use_se=True) def forward(self, x): x = self.conv1(x) x = self.bn1(x) x = self.relu1(x) x = self.head(x) return x #embedding setting class add_emb_block(nn.Module): def __init__(self,in_channels, last_channels, emb_size, group_base=8): super(add_emb_block, self).__init__() self.conv1 = nn.Conv2d(in_channels, last_channels, kernel_size=1, stride=1, padding=0, bias=False) self.bn1 = nn.BatchNorm2d(last_channels) self.relu1 = nn.PReLU(last_channels) #depthwise self.dw_conv = nn.Conv2d(last_channels, last_channels, kernel_size=7, stride=1, padding=0, bias=False, groups=last_channels//group_base) self.dw_bn = nn.BatchNorm2d(last_channels) # pointwise self.pw_conv = nn.Conv2d(last_channels, last_channels//2, kernel_size=1, stride=1, padding=0, bias=False) self.pw_bn = nn.BatchNorm2d(last_channels//2) self.pw_relu = nn.PReLU(last_channels//2) self.fc = nn.Linear(last_channels//2, emb_size, bias=False) self.bn = nn.BatchNorm1d(emb_size) def forward(self, x): x = self.conv1(x) x = self.bn1(x) x = self.relu1(x) x = self.dw_conv(x) x = self.dw_bn(x) x = self.pw_conv(x) x = self.pw_bn(x) x = self.pw_relu(x) x = x.view(x.size(0), -1) x = self.fc(x) x = self.bn(x) return x class VarGFaceNet(nn.Module): def __init__(self, last_channels, emb_size, filter_list, norm_block_number, multiplier, reduction, num_stage, expansion): super(VarGFaceNet, self).__init__() self.head = add_head_block(filter_list[0], multiplier, reduction, kernel_size=3, stride=1, padding=1) body = [] for i in range(num_stage): body.append(add_vargnet_conv_block(filter_list[i], filter_list[i+1], norm_block_number[i], reduction, expansion=expansion, multiplier=multiplier, kernel_size=3, stride=2, dilate=1)) self.body_layer = nn.Sequential(*body) self.embedding = add_emb_block(int(filter_list[num_stage]*multiplier), last_channels, emb_size, group_base=8) self._initialize_weights() def forward(self, x): x = self.head(x) x = self.body_layer(x) x = self.embedding(x) return l2_norm(x) def _initialize_weights(self): for m in self.modules(): if isinstance(m, nn.Conv2d): nn.init.kaiming_normal_(m.weight, mode='fan_out', nonlinearity='relu') elif isinstance(m, nn.BatchNorm2d): m.weight.data.fill_(1) m.bias.data.zero_() def varGFaceNet(): """ last_channels: 最后一层的通道数,默认1024 emb_size: 嵌入特征的大小,默认512 filter_list:每一层的通道数 norm_block_number:每个num_stage中norm block的个数 multiplier:乘于filter_list中的通道数，起到拓宽网络的作用,可0.5、1、1.5等 reduction:SE模块中通道的缩小倍数, 默认4 num_stage:中间的Down sampling block(1个) + Norm Block(n个)的个数,默认3 expansion:下一层的通道数 = 上一层的通道数*expansion,默认2倍 """ filter_list=[32, 64, 128, 256] norm_block_number=[3, 7, 4] return VarGFaceNet(last_channels=1024, emb_size=512, filter_list=filter_list, norm_block_number=norm_block_number, multiplier=1.25, reduction=4, num_stage=3, expansion=2) if __name__ == '__main__': model = varGFaceNet() for name, child in model.named_children(): print(name) print(child) input = torch.autograd.Variable(torch.randn(4,3,112,112)) output = model(input) print(output.shape)
输出：
head add_head_block( (conv1): Conv2d(3, 40, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), bias=False) (bn1): BatchNorm2d(40, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (relu1): PReLU(num_parameters=40) (head): vargnet_block( (short_cut): separable_conv2d( (dw_conv): Conv2d(40, 40, kernel_size=(3, 3), stride=(2, 2), padding=(1, 1), groups=5, bias=False) (dw_bn): BatchNorm2d(40, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=40) (pw_conv): Conv2d(40, 40, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(40, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (part_1): separable_conv2d( (dw_conv): Conv2d(40, 40, kernel_size=(3, 3), stride=(2, 2), padding=(1, 1), groups=5, bias=False) (dw_bn): BatchNorm2d(40, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=40) (pw_conv): Conv2d(40, 40, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(40, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): PReLU(num_parameters=40) ) (part_2): separable_conv2d( (dw_conv): Conv2d(40, 40, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=5, bias=False) (dw_bn): BatchNorm2d(40, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=40) (pw_conv): Conv2d(40, 40, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(40, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (se): se_block( (avg_pool): AdaptiveAvgPool2d(output_size=1) (fc1): Conv2d(40, 10, kernel_size=(1, 1), stride=(1, 1), bias=False) (relu): PReLU(num_parameters=10) (fc2): Conv2d(10, 40, kernel_size=(1, 1), stride=(1, 1), bias=False) (sigmoid): Sigmoid() ) (relu): PReLU(num_parameters=40) ) ) body_layer Sequential( (0): add_vargnet_conv_block( (down_sample_block): vargnet_branch_merge_block( (short_cut): separable_conv2d( (dw_conv): Conv2d(40, 80, kernel_size=(3, 3), stride=(2, 2), padding=(1, 1), groups=5, bias=False) (dw_bn): BatchNorm2d(80, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=80) (pw_conv): Conv2d(80, 80, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(80, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (part_1_branch_1): separable_conv2d( (dw_conv): Conv2d(40, 80, kernel_size=(3, 3), stride=(2, 2), padding=(1, 1), groups=5, bias=False) (dw_bn): BatchNorm2d(80, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=80) (pw_conv): Conv2d(80, 80, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(80, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (part_1_branch_2): separable_conv2d( (dw_conv): Conv2d(40, 80, kernel_size=(3, 3), stride=(2, 2), padding=(1, 1), groups=5, bias=False) (dw_bn): BatchNorm2d(80, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=80) (pw_conv): Conv2d(80, 80, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(80, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (relu_1): PReLU(num_parameters=80) (part_2): separable_conv2d( (dw_conv): Conv2d(80, 160, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=10, bias=False) (dw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=160) (pw_conv): Conv2d(160, 80, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(80, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (relu_2): PReLU(num_parameters=80) ) (norm_blocks_layer): Sequential( (0): vargnet_block( (short_cut): Sequential() (part_1): separable_conv2d( (dw_conv): Conv2d(80, 160, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=10, bias=False) (dw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=160) (pw_conv): Conv2d(160, 80, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(80, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): PReLU(num_parameters=80) ) (part_2): separable_conv2d( (dw_conv): Conv2d(80, 160, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=10, bias=False) (dw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=160) (pw_conv): Conv2d(160, 80, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(80, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (se): se_block( (avg_pool): AdaptiveAvgPool2d(output_size=1) (fc1): Conv2d(80, 20, kernel_size=(1, 1), stride=(1, 1), bias=False) (relu): PReLU(num_parameters=20) (fc2): Conv2d(20, 80, kernel_size=(1, 1), stride=(1, 1), bias=False) (sigmoid): Sigmoid() ) (relu): PReLU(num_parameters=80) ) (1): vargnet_block( (short_cut): Sequential() (part_1): separable_conv2d( (dw_conv): Conv2d(80, 160, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=10, bias=False) (dw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=160) (pw_conv): Conv2d(160, 80, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(80, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): PReLU(num_parameters=80) ) (part_2): separable_conv2d( (dw_conv): Conv2d(80, 160, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=10, bias=False) (dw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=160) (pw_conv): Conv2d(160, 80, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(80, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (se): se_block( (avg_pool): AdaptiveAvgPool2d(output_size=1) (fc1): Conv2d(80, 20, kernel_size=(1, 1), stride=(1, 1), bias=False) (relu): PReLU(num_parameters=20) (fc2): Conv2d(20, 80, kernel_size=(1, 1), stride=(1, 1), bias=False) (sigmoid): Sigmoid() ) (relu): PReLU(num_parameters=80) ) ) ) (1): add_vargnet_conv_block( (down_sample_block): vargnet_branch_merge_block( (short_cut): separable_conv2d( (dw_conv): Conv2d(80, 160, kernel_size=(3, 3), stride=(2, 2), padding=(1, 1), groups=10, bias=False) (dw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=160) (pw_conv): Conv2d(160, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (part_1_branch_1): separable_conv2d( (dw_conv): Conv2d(80, 160, kernel_size=(3, 3), stride=(2, 2), padding=(1, 1), groups=10, bias=False) (dw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=160) (pw_conv): Conv2d(160, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (part_1_branch_2): separable_conv2d( (dw_conv): Conv2d(80, 160, kernel_size=(3, 3), stride=(2, 2), padding=(1, 1), groups=10, bias=False) (dw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=160) (pw_conv): Conv2d(160, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (relu_1): PReLU(num_parameters=160) (part_2): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (relu_2): PReLU(num_parameters=160) ) (norm_blocks_layer): Sequential( (0): vargnet_block( (short_cut): Sequential() (part_1): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): PReLU(num_parameters=160) ) (part_2): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (se): se_block( (avg_pool): AdaptiveAvgPool2d(output_size=1) (fc1): Conv2d(160, 40, kernel_size=(1, 1), stride=(1, 1), bias=False) (relu): PReLU(num_parameters=40) (fc2): Conv2d(40, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (sigmoid): Sigmoid() ) (relu): PReLU(num_parameters=160) ) (1): vargnet_block( (short_cut): Sequential() (part_1): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): PReLU(num_parameters=160) ) (part_2): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (se): se_block( (avg_pool): AdaptiveAvgPool2d(output_size=1) (fc1): Conv2d(160, 40, kernel_size=(1, 1), stride=(1, 1), bias=False) (relu): PReLU(num_parameters=40) (fc2): Conv2d(40, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (sigmoid): Sigmoid() ) (relu): PReLU(num_parameters=160) ) (2): vargnet_block( (short_cut): Sequential() (part_1): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): PReLU(num_parameters=160) ) (part_2): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (se): se_block( (avg_pool): AdaptiveAvgPool2d(output_size=1) (fc1): Conv2d(160, 40, kernel_size=(1, 1), stride=(1, 1), bias=False) (relu): PReLU(num_parameters=40) (fc2): Conv2d(40, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (sigmoid): Sigmoid() ) (relu): PReLU(num_parameters=160) ) (3): vargnet_block( (short_cut): Sequential() (part_1): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): PReLU(num_parameters=160) ) (part_2): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (se): se_block( (avg_pool): AdaptiveAvgPool2d(output_size=1) (fc1): Conv2d(160, 40, kernel_size=(1, 1), stride=(1, 1), bias=False) (relu): PReLU(num_parameters=40) (fc2): Conv2d(40, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (sigmoid): Sigmoid() ) (relu): PReLU(num_parameters=160) ) (4): vargnet_block( (short_cut): Sequential() (part_1): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): PReLU(num_parameters=160) ) (part_2): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (se): se_block( (avg_pool): AdaptiveAvgPool2d(output_size=1) (fc1): Conv2d(160, 40, kernel_size=(1, 1), stride=(1, 1), bias=False) (relu): PReLU(num_parameters=40) (fc2): Conv2d(40, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (sigmoid): Sigmoid() ) (relu): PReLU(num_parameters=160) ) (5): vargnet_block( (short_cut): Sequential() (part_1): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): PReLU(num_parameters=160) ) (part_2): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(160, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (se): se_block( (avg_pool): AdaptiveAvgPool2d(output_size=1) (fc1): Conv2d(160, 40, kernel_size=(1, 1), stride=(1, 1), bias=False) (relu): PReLU(num_parameters=40) (fc2): Conv2d(40, 160, kernel_size=(1, 1), stride=(1, 1), bias=False) (sigmoid): Sigmoid() ) (relu): PReLU(num_parameters=160) ) ) ) (2): add_vargnet_conv_block( (down_sample_block): vargnet_branch_merge_block( (short_cut): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(2, 2), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 320, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (part_1_branch_1): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(2, 2), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 320, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (part_1_branch_2): separable_conv2d( (dw_conv): Conv2d(160, 320, kernel_size=(3, 3), stride=(2, 2), padding=(1, 1), groups=20, bias=False) (dw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=320) (pw_conv): Conv2d(320, 320, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (relu_1): PReLU(num_parameters=320) (part_2): separable_conv2d( (dw_conv): Conv2d(320, 640, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=40, bias=False) (dw_bn): BatchNorm2d(640, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=640) (pw_conv): Conv2d(640, 320, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (relu_2): PReLU(num_parameters=320) ) (norm_blocks_layer): Sequential( (0): vargnet_block( (short_cut): Sequential() (part_1): separable_conv2d( (dw_conv): Conv2d(320, 640, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=40, bias=False) (dw_bn): BatchNorm2d(640, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=640) (pw_conv): Conv2d(640, 320, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): PReLU(num_parameters=320) ) (part_2): separable_conv2d( (dw_conv): Conv2d(320, 640, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=40, bias=False) (dw_bn): BatchNorm2d(640, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=640) (pw_conv): Conv2d(640, 320, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (se): se_block( (avg_pool): AdaptiveAvgPool2d(output_size=1) (fc1): Conv2d(320, 80, kernel_size=(1, 1), stride=(1, 1), bias=False) (relu): PReLU(num_parameters=80) (fc2): Conv2d(80, 320, kernel_size=(1, 1), stride=(1, 1), bias=False) (sigmoid): Sigmoid() ) (relu): PReLU(num_parameters=320) ) (1): vargnet_block( (short_cut): Sequential() (part_1): separable_conv2d( (dw_conv): Conv2d(320, 640, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=40, bias=False) (dw_bn): BatchNorm2d(640, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=640) (pw_conv): Conv2d(640, 320, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): PReLU(num_parameters=320) ) (part_2): separable_conv2d( (dw_conv): Conv2d(320, 640, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=40, bias=False) (dw_bn): BatchNorm2d(640, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=640) (pw_conv): Conv2d(640, 320, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (se): se_block( (avg_pool): AdaptiveAvgPool2d(output_size=1) (fc1): Conv2d(320, 80, kernel_size=(1, 1), stride=(1, 1), bias=False) (relu): PReLU(num_parameters=80) (fc2): Conv2d(80, 320, kernel_size=(1, 1), stride=(1, 1), bias=False) (sigmoid): Sigmoid() ) (relu): PReLU(num_parameters=320) ) (2): vargnet_block( (short_cut): Sequential() (part_1): separable_conv2d( (dw_conv): Conv2d(320, 640, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=40, bias=False) (dw_bn): BatchNorm2d(640, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=640) (pw_conv): Conv2d(640, 320, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): PReLU(num_parameters=320) ) (part_2): separable_conv2d( (dw_conv): Conv2d(320, 640, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1), groups=40, bias=False) (dw_bn): BatchNorm2d(640, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (dw_relu): PReLU(num_parameters=640) (pw_conv): Conv2d(640, 320, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(320, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): Sequential() ) (se): se_block( (avg_pool): AdaptiveAvgPool2d(output_size=1) (fc1): Conv2d(320, 80, kernel_size=(1, 1), stride=(1, 1), bias=False) (relu): PReLU(num_parameters=80) (fc2): Conv2d(80, 320, kernel_size=(1, 1), stride=(1, 1), bias=False) (sigmoid): Sigmoid() ) (relu): PReLU(num_parameters=320) ) ) ) ) embedding add_emb_block( (conv1): Conv2d(320, 1024, kernel_size=(1, 1), stride=(1, 1), bias=False) (bn1): BatchNorm2d(1024, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (relu1): PReLU(num_parameters=1024) (dw_conv): Conv2d(1024, 1024, kernel_size=(7, 7), stride=(1, 1), groups=128, bias=False) (dw_bn): BatchNorm2d(1024, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_conv): Conv2d(1024, 512, kernel_size=(1, 1), stride=(1, 1), bias=False) (pw_bn): BatchNorm2d(512, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) (pw_relu): PReLU(num_parameters=512) (fc): Linear(in_features=512, out_features=512, bias=False) (bn): BatchNorm1d(512, eps=1e-05, momentum=0.1, affine=True, track_running_stats=True) ) torch.Size([4, 512])
