def __init__(self,
inplanes,
planes,
lstm_size,
emb_size,
stride=1,
downsample=None):
super(Bottleneck, self).__init__()
self.conv1 = nn.Conv2d(inplanes, planes, kernel_size=1, bias=False)
# self.bn1 = nn.BatchNorm2d(planes)
self.bn1 = CBN(lstm_size, emb_size, planes)
self.conv2 = nn.Conv2d(planes,
planes,
kernel_size=3,
stride=stride,
padding=1,
bias=False)
# self.bn2 = nn.BatchNorm2d(planes)
self.bn2 = CBN(lstm_size, emb_size, planes)
self.conv3 = nn.Conv2d(planes, planes * 4, kernel_size=1, bias=False)
# self.bn3 = nn.BatchNorm2d(planes * 4)
self.bn3 = CBN(lstm_size, emb_size, planes * 4)
self.relu = nn.ReLU(inplace=True)
self.downsample = downsample
self.stride = stride
def __init__(self, block, layers, lstm_size, emb_size, num_classes=1000):
self.inplanes = 64
self.lstm_size = lstm_size
self.emb_size = emb_size
super(ResNet, self).__init__()
self.conv1 = nn.Conv2d(3,
64,
kernel_size=7,
stride=2,
padding=3,
bias=False).cuda()
# self.bn1 = nn.BatchNorm2d(64)
self.bn1 = CBN(self.lstm_size, self.emb_size, 64)
self.relu = nn.ReLU(inplace=True)
self.maxpool = nn.MaxPool2d(kernel_size=3, stride=2, padding=1)
self.layer1 = self._make_layer(block, 64, layers[0])
self.layer2 = self._make_layer(block, 128, layers[1], stride=2)
self.layer3 = self._make_layer(block, 256, layers[2], stride=2)
self.layer4 = self._make_layer(block, 512, layers[3], stride=2)
self.avgpool = nn.AvgPool2d(7, stride=1)
self.fc = nn.Linear(512 * block.expansion, num_classes)
for m in self.modules():
if isinstance(m, nn.Conv2d):
n = m.kernel_size[0] * m.kernel_size[1] * m.out_channels
m.weight.data.normal_(0, math.sqrt(2. / n))
elif isinstance(m, nn.BatchNorm2d):
m.weight.data.fill_(1)
m.bias.data.zero_()
def _make_layer(self, block, planes, blocks, stride=1):
downsample = None
if stride != 1 or self.inplanes != planes * block.expansion:
if use_cbn:
downsample = Sequential(
Conv2d(self.inplanes,
planes * block.expansion,
kernel_size=1,
stride=stride,
bias=False),
CBN(self.lstm_size, self.emb_size,
planes * block.expansion),
)
else:
downsample = nn.Sequential(
nn.Conv2d(self.inplanes,
planes * block.expansion,
kernel_size=1,
stride=stride,
bias=False),
nn.BatchNorm2d(planes * block.expansion),
)
layers = []
layers.append(
block(self.inplanes, planes, self.lstm_size, self.emb_size, stride,
downsample))
self.inplanes = planes * block.expansion
for i in range(1, blocks):
layers.append(
block(self.inplanes, planes, self.lstm_size, self.emb_size))
return Sequential(*layers)
def __init__(self,
inplanes,
planes,
lstm_size,
emb_size,
stride=1,
downsample=None):
super(BasicBlock, self).__init__()
self.conv1 = conv3x3(inplanes, planes, stride)
# self.bn1 = nn.BatchNorm2d(planes)
self.bn1 = CBN(lstm_size, emb_size, planes)
self.relu = nn.ReLU(inplace=True)
self.conv2 = conv3x3(planes, planes)
# self.bn2 = nn.BatchNorm2d(planes)
self.bn2 = CBN(lstm_size, emb_size, planes)
self.downsample = downsample
self.stride = stride