| | |
| | | |
| | | def __init__(self, in_planes, planes, stride=1): |
| | | super(BasicResBlock, self).__init__() |
| | | self.conv1 = torch.nn.Conv2d(in_planes, |
| | | planes, |
| | | kernel_size=3, |
| | | stride=(stride, 1), |
| | | padding=1, |
| | | bias=False) |
| | | self.conv1 = torch.nn.Conv2d( |
| | | in_planes, planes, kernel_size=3, stride=(stride, 1), padding=1, bias=False |
| | | ) |
| | | self.bn1 = torch.nn.BatchNorm2d(planes) |
| | | self.conv2 = torch.nn.Conv2d(planes, |
| | | planes, |
| | | kernel_size=3, |
| | | stride=1, |
| | | padding=1, |
| | | bias=False) |
| | | self.conv2 = torch.nn.Conv2d(planes, planes, kernel_size=3, stride=1, padding=1, bias=False) |
| | | self.bn2 = torch.nn.BatchNorm2d(planes) |
| | | |
| | | self.shortcut = torch.nn.Sequential() |
| | | if stride != 1 or in_planes != self.expansion * planes: |
| | | self.shortcut = torch.nn.Sequential( |
| | | torch.nn.Conv2d(in_planes, |
| | | self.expansion * planes, |
| | | kernel_size=1, |
| | | stride=(stride, 1), |
| | | bias=False), |
| | | torch.nn.BatchNorm2d(self.expansion * planes)) |
| | | torch.nn.Conv2d( |
| | | in_planes, |
| | | self.expansion * planes, |
| | | kernel_size=1, |
| | | stride=(stride, 1), |
| | | bias=False, |
| | | ), |
| | | torch.nn.BatchNorm2d(self.expansion * planes), |
| | | ) |
| | | |
| | | def forward(self, x): |
| | | out = F.relu(self.bn1(self.conv1(x))) |
| | |
| | | |
| | | |
| | | class FCM(torch.nn.Module): |
| | | def __init__(self, |
| | | block=BasicResBlock, |
| | | num_blocks=[2, 2], |
| | | m_channels=32, |
| | | feat_dim=80): |
| | | def __init__(self, block=BasicResBlock, num_blocks=[2, 2], m_channels=32, feat_dim=80): |
| | | super(FCM, self).__init__() |
| | | self.in_planes = m_channels |
| | | self.conv1 = torch.nn.Conv2d(1, m_channels, kernel_size=3, stride=1, padding=1, bias=False) |
| | |
| | | self.layer1 = self._make_layer(block, m_channels, num_blocks[0], stride=2) |
| | | self.layer2 = self._make_layer(block, m_channels, num_blocks[0], stride=2) |
| | | |
| | | self.conv2 = torch.nn.Conv2d(m_channels, m_channels, kernel_size=3, stride=(2, 1), padding=1, bias=False) |
| | | self.conv2 = torch.nn.Conv2d( |
| | | m_channels, m_channels, kernel_size=3, stride=(2, 1), padding=1, bias=False |
| | | ) |
| | | self.bn2 = torch.nn.BatchNorm2d(m_channels) |
| | | self.out_channels = m_channels * (feat_dim // 8) |
| | | |
| | |
| | | |
| | | def get_nonlinear(config_str, channels): |
| | | nonlinear = torch.nn.Sequential() |
| | | for name in config_str.split('-'): |
| | | if name == 'relu': |
| | | nonlinear.add_module('relu', torch.nn.ReLU(inplace=True)) |
| | | elif name == 'prelu': |
| | | nonlinear.add_module('prelu', torch.nn.PReLU(channels)) |
| | | elif name == 'batchnorm': |
| | | nonlinear.add_module('batchnorm', torch.nn.BatchNorm1d(channels)) |
| | | elif name == 'batchnorm_': |
| | | nonlinear.add_module('batchnorm', |
| | | torch.nn.BatchNorm1d(channels, affine=False)) |
| | | for name in config_str.split("-"): |
| | | if name == "relu": |
| | | nonlinear.add_module("relu", torch.nn.ReLU(inplace=True)) |
| | | elif name == "prelu": |
| | | nonlinear.add_module("prelu", torch.nn.PReLU(channels)) |
| | | elif name == "batchnorm": |
| | | nonlinear.add_module("batchnorm", torch.nn.BatchNorm1d(channels)) |
| | | elif name == "batchnorm_": |
| | | nonlinear.add_module("batchnorm", torch.nn.BatchNorm1d(channels, affine=False)) |
| | | else: |
| | | raise ValueError('Unexpected module ({}).'.format(name)) |
| | | raise ValueError("Unexpected module ({}).".format(name)) |
| | | return nonlinear |
| | | |
| | | |
| | |
| | | |
| | | |
| | | class TDNNLayer(torch.nn.Module): |
| | | def __init__(self, |
| | | in_channels, |
| | | out_channels, |
| | | kernel_size, |
| | | stride=1, |
| | | padding=0, |
| | | dilation=1, |
| | | bias=False, |
| | | config_str='batchnorm-relu'): |
| | | def __init__( |
| | | self, |
| | | in_channels, |
| | | out_channels, |
| | | kernel_size, |
| | | stride=1, |
| | | padding=0, |
| | | dilation=1, |
| | | bias=False, |
| | | config_str="batchnorm-relu", |
| | | ): |
| | | super(TDNNLayer, self).__init__() |
| | | if padding < 0: |
| | | assert kernel_size % 2 == 1, 'Expect equal paddings, but got even kernel size ({})'.format( |
| | | kernel_size) |
| | | assert ( |
| | | kernel_size % 2 == 1 |
| | | ), "Expect equal paddings, but got even kernel size ({})".format(kernel_size) |
| | | padding = (kernel_size - 1) // 2 * dilation |
| | | self.linear = torch.nn.Conv1d(in_channels, |
| | | out_channels, |
| | | kernel_size, |
| | | stride=stride, |
| | | padding=padding, |
| | | dilation=dilation, |
| | | bias=bias) |
| | | self.linear = torch.nn.Conv1d( |
| | | in_channels, |
| | | out_channels, |
| | | kernel_size, |
| | | stride=stride, |
| | | padding=padding, |
| | | dilation=dilation, |
| | | bias=bias, |
| | | ) |
| | | self.nonlinear = get_nonlinear(config_str, out_channels) |
| | | |
| | | def forward(self, x): |
| | |
| | | |
| | | |
| | | class CAMLayer(torch.nn.Module): |
| | | def __init__(self, |
| | | bn_channels, |
| | | out_channels, |
| | | kernel_size, |
| | | stride, |
| | | padding, |
| | | dilation, |
| | | bias, |
| | | reduction=2): |
| | | def __init__( |
| | | self, bn_channels, out_channels, kernel_size, stride, padding, dilation, bias, reduction=2 |
| | | ): |
| | | super(CAMLayer, self).__init__() |
| | | self.linear_local = torch.nn.Conv1d(bn_channels, |
| | | out_channels, |
| | | kernel_size, |
| | | stride=stride, |
| | | padding=padding, |
| | | dilation=dilation, |
| | | bias=bias) |
| | | self.linear_local = torch.nn.Conv1d( |
| | | bn_channels, |
| | | out_channels, |
| | | kernel_size, |
| | | stride=stride, |
| | | padding=padding, |
| | | dilation=dilation, |
| | | bias=bias, |
| | | ) |
| | | self.linear1 = torch.nn.Conv1d(bn_channels, bn_channels // reduction, 1) |
| | | self.relu = torch.nn.ReLU(inplace=True) |
| | | self.linear2 = torch.nn.Conv1d(bn_channels // reduction, out_channels, 1) |
| | |
| | | m = self.sigmoid(self.linear2(context)) |
| | | return y * m |
| | | |
| | | def seg_pooling(self, x, seg_len=100, stype='avg'): |
| | | if stype == 'avg': |
| | | def seg_pooling(self, x, seg_len=100, stype="avg"): |
| | | if stype == "avg": |
| | | seg = F.avg_pool1d(x, kernel_size=seg_len, stride=seg_len, ceil_mode=True) |
| | | elif stype == 'max': |
| | | elif stype == "max": |
| | | seg = F.max_pool1d(x, kernel_size=seg_len, stride=seg_len, ceil_mode=True) |
| | | else: |
| | | raise ValueError('Wrong segment pooling type.') |
| | | raise ValueError("Wrong segment pooling type.") |
| | | shape = seg.shape |
| | | seg = seg.unsqueeze(-1).expand(*shape, seg_len).reshape(*shape[:-1], -1) |
| | | seg = seg[..., :x.shape[-1]] |
| | | seg = seg[..., : x.shape[-1]] |
| | | return seg |
| | | |
| | | |
| | | class CAMDenseTDNNLayer(torch.nn.Module): |
| | | def __init__(self, |
| | | in_channels, |
| | | out_channels, |
| | | bn_channels, |
| | | kernel_size, |
| | | stride=1, |
| | | dilation=1, |
| | | bias=False, |
| | | config_str='batchnorm-relu', |
| | | memory_efficient=False): |
| | | def __init__( |
| | | self, |
| | | in_channels, |
| | | out_channels, |
| | | bn_channels, |
| | | kernel_size, |
| | | stride=1, |
| | | dilation=1, |
| | | bias=False, |
| | | config_str="batchnorm-relu", |
| | | memory_efficient=False, |
| | | ): |
| | | super(CAMDenseTDNNLayer, self).__init__() |
| | | assert kernel_size % 2 == 1, 'Expect equal paddings, but got even kernel size ({})'.format( |
| | | kernel_size) |
| | | assert kernel_size % 2 == 1, "Expect equal paddings, but got even kernel size ({})".format( |
| | | kernel_size |
| | | ) |
| | | padding = (kernel_size - 1) // 2 * dilation |
| | | self.memory_efficient = memory_efficient |
| | | self.nonlinear1 = get_nonlinear(config_str, in_channels) |
| | | self.linear1 = torch.nn.Conv1d(in_channels, bn_channels, 1, bias=False) |
| | | self.nonlinear2 = get_nonlinear(config_str, bn_channels) |
| | | self.cam_layer = CAMLayer(bn_channels, |
| | | out_channels, |
| | | kernel_size, |
| | | stride=stride, |
| | | padding=padding, |
| | | dilation=dilation, |
| | | bias=bias) |
| | | self.cam_layer = CAMLayer( |
| | | bn_channels, |
| | | out_channels, |
| | | kernel_size, |
| | | stride=stride, |
| | | padding=padding, |
| | | dilation=dilation, |
| | | bias=bias, |
| | | ) |
| | | |
| | | def bn_function(self, x): |
| | | return self.linear1(self.nonlinear1(x)) |
| | |
| | | |
| | | |
| | | class CAMDenseTDNNBlock(torch.nn.ModuleList): |
| | | def __init__(self, |
| | | num_layers, |
| | | in_channels, |
| | | out_channels, |
| | | bn_channels, |
| | | kernel_size, |
| | | stride=1, |
| | | dilation=1, |
| | | bias=False, |
| | | config_str='batchnorm-relu', |
| | | memory_efficient=False): |
| | | def __init__( |
| | | self, |
| | | num_layers, |
| | | in_channels, |
| | | out_channels, |
| | | bn_channels, |
| | | kernel_size, |
| | | stride=1, |
| | | dilation=1, |
| | | bias=False, |
| | | config_str="batchnorm-relu", |
| | | memory_efficient=False, |
| | | ): |
| | | super(CAMDenseTDNNBlock, self).__init__() |
| | | for i in range(num_layers): |
| | | layer = CAMDenseTDNNLayer(in_channels=in_channels + i * out_channels, |
| | | out_channels=out_channels, |
| | | bn_channels=bn_channels, |
| | | kernel_size=kernel_size, |
| | | stride=stride, |
| | | dilation=dilation, |
| | | bias=bias, |
| | | config_str=config_str, |
| | | memory_efficient=memory_efficient) |
| | | self.add_module('tdnnd%d' % (i + 1), layer) |
| | | layer = CAMDenseTDNNLayer( |
| | | in_channels=in_channels + i * out_channels, |
| | | out_channels=out_channels, |
| | | bn_channels=bn_channels, |
| | | kernel_size=kernel_size, |
| | | stride=stride, |
| | | dilation=dilation, |
| | | bias=bias, |
| | | config_str=config_str, |
| | | memory_efficient=memory_efficient, |
| | | ) |
| | | self.add_module("tdnnd%d" % (i + 1), layer) |
| | | |
| | | def forward(self, x): |
| | | for layer in self: |
| | |
| | | |
| | | |
| | | class TransitLayer(torch.nn.Module): |
| | | def __init__(self, |
| | | in_channels, |
| | | out_channels, |
| | | bias=True, |
| | | config_str='batchnorm-relu'): |
| | | def __init__(self, in_channels, out_channels, bias=True, config_str="batchnorm-relu"): |
| | | super(TransitLayer, self).__init__() |
| | | self.nonlinear = get_nonlinear(config_str, in_channels) |
| | | self.linear = torch.nn.Conv1d(in_channels, out_channels, 1, bias=bias) |
| | |
| | | |
| | | |
| | | class DenseLayer(torch.nn.Module): |
| | | def __init__(self, |
| | | in_channels, |
| | | out_channels, |
| | | bias=False, |
| | | config_str='batchnorm-relu'): |
| | | def __init__(self, in_channels, out_channels, bias=False, config_str="batchnorm-relu"): |
| | | super(DenseLayer, self).__init__() |
| | | self.linear = torch.nn.Conv1d(in_channels, out_channels, 1, bias=bias) |
| | | self.nonlinear = get_nonlinear(config_str, out_channels) |
| | |
| | | x = self.linear(x) |
| | | x = self.nonlinear(x) |
| | | return x |
| | | |
| | | |