def network_initialization(self, in_channels, out_channels, config, D):
def space_n_time_m(n, m):
return n if D == 3 else [n, n, n, m]
if D == 4:
self.OUT_PIXEL_DIST = space_n_time_m(self.OUT_PIXEL_DIST, 1)
dilations = config.dilations
bn_momentum = config.opt.bn_momentum
self.inplanes = self.INIT_DIM
self.conv1 = conv(in_channels,
self.inplanes,
kernel_size=space_n_time_m(config.conv1_kernel_size,
1),
stride=1,
D=D)
self.bn1 = get_norm(NormType.BATCH_NORM,
self.inplanes,
D=self.D,
bn_momentum=bn_momentum)
self.relu = ME.MinkowskiReLU(inplace=True)
self.pool = sum_pool(kernel_size=space_n_time_m(2, 1),
stride=space_n_time_m(2, 1),
D=D)
self.layer1 = self._make_layer(self.BLOCK,
self.PLANES[0],
self.LAYERS[0],
stride=space_n_time_m(2, 1),
dilation=space_n_time_m(
dilations[0], 1))
self.layer2 = self._make_layer(self.BLOCK,
self.PLANES[1],
self.LAYERS[1],
stride=space_n_time_m(2, 1),
dilation=space_n_time_m(
dilations[1], 1))
self.layer3 = self._make_layer(self.BLOCK,
self.PLANES[2],
self.LAYERS[2],
stride=space_n_time_m(2, 1),
dilation=space_n_time_m(
dilations[2], 1))
self.layer4 = self._make_layer(self.BLOCK,
self.PLANES[3],
self.LAYERS[3],
stride=space_n_time_m(2, 1),
dilation=space_n_time_m(
dilations[3], 1))
self.final = conv(self.PLANES[3] * self.BLOCK.expansion,
out_channels,
kernel_size=1,
bias=True,
D=D)
def __init__(self,
inplanes,
planes,
stride=1,
dilation=1,
downsample=None,
conv_type=ConvType.HYPERCUBE,
bn_momentum=0.1,
D=3):
super(BottleneckBase, self).__init__()
self.conv1 = conv(inplanes, planes, kernel_size=1, D=D)
self.norm1 = get_norm(self.NORM_TYPE,
planes,
D,
bn_momentum=bn_momentum)
self.conv2 = conv(planes,
planes,
kernel_size=3,
stride=stride,
dilation=dilation,
conv_type=conv_type,
D=D)
self.norm2 = get_norm(self.NORM_TYPE,
planes,
D,
bn_momentum=bn_momentum)
self.conv3 = conv(planes, planes * self.expansion, kernel_size=1, D=D)
self.norm3 = get_norm(self.NORM_TYPE,
planes * self.expansion,
D,
bn_momentum=bn_momentum)
self.relu = MinkowskiReLU(inplace=True)
self.downsample = downsample
def _make_layer(self,
block,
planes,
blocks,
stride=1,
dilation=1,
norm_type=NormType.BATCH_NORM,
bn_momentum=0.1):
downsample = None
if stride != 1 or self.inplanes != planes * block.expansion:
downsample = nn.Sequential(
conv(self.inplanes,
planes * block.expansion,
kernel_size=1,
stride=stride,
bias=False,
D=self.D),
get_norm(norm_type,
planes * block.expansion,
D=self.D,
bn_momentum=bn_momentum),
)
layers = []
layers.append(
block(self.inplanes,
planes,
stride=stride,
dilation=dilation,
downsample=downsample,
conv_type=self.CONV_TYPE,
D=self.D))
self.inplanes = planes * block.expansion
for i in range(1, blocks):
layers.append(
block(self.inplanes,
planes,
stride=1,
dilation=dilation,
conv_type=self.CONV_TYPE,
D=self.D))
return nn.Sequential(*layers)
def network_initialization(self, in_channels, out_channels, config, D):
dilations = self.DILATIONS
bn_momentum = config.opt.bn_momentum
def space_n_time_m(n, m):
return n if D == 3 else [n, n, n, m]
if D == 4:
self.OUT_PIXEL_DIST = space_n_time_m(self.OUT_PIXEL_DIST, 1)
self.inplanes = self.INIT_DIM
self.conv0p1s1 = conv(in_channels,
self.inplanes,
kernel_size=space_n_time_m(
config.net.conv1_kernel_size, 1),
stride=1,
dilation=1,
conv_type=self.NON_BLOCK_CONV_TYPE,
D=D)
self.bn0 = get_norm(self.NORM_TYPE,
self.inplanes,
D,
bn_momentum=bn_momentum)
self.conv1p1s2 = conv(self.inplanes,
self.inplanes,
kernel_size=space_n_time_m(2, 1),
stride=space_n_time_m(2, 1),
dilation=1,
conv_type=self.NON_BLOCK_CONV_TYPE,
D=D)
self.bn1 = get_norm(self.NORM_TYPE,
self.inplanes,
D,
bn_momentum=bn_momentum)
self.block1 = self._make_layer(self.BLOCK,
self.PLANES[0],
self.LAYERS[0],
dilation=dilations[0],
norm_type=self.NORM_TYPE,
bn_momentum=bn_momentum)
self.conv2p2s2 = conv(self.inplanes,
self.inplanes,
kernel_size=space_n_time_m(2, 1),
stride=space_n_time_m(2, 1),
dilation=1,
conv_type=self.NON_BLOCK_CONV_TYPE,
D=D)
self.bn2 = get_norm(self.NORM_TYPE,
self.inplanes,
D,
bn_momentum=bn_momentum)
self.block2 = self._make_layer(self.BLOCK,
self.PLANES[1],
self.LAYERS[1],
dilation=dilations[1],
norm_type=self.NORM_TYPE,
bn_momentum=bn_momentum)
self.conv3p4s2 = conv(self.inplanes,
self.inplanes,
kernel_size=space_n_time_m(2, 1),
stride=space_n_time_m(2, 1),
dilation=1,
conv_type=self.NON_BLOCK_CONV_TYPE,
D=D)
self.bn3 = get_norm(self.NORM_TYPE,
self.inplanes,
D,
bn_momentum=bn_momentum)
self.block3 = self._make_layer(self.BLOCK,
self.PLANES[2],
self.LAYERS[2],
dilation=dilations[2],
norm_type=self.NORM_TYPE,
bn_momentum=bn_momentum)
self.conv4p8s2 = conv(self.inplanes,
self.inplanes,
kernel_size=space_n_time_m(2, 1),
stride=space_n_time_m(2, 1),
dilation=1,
conv_type=self.NON_BLOCK_CONV_TYPE,
D=D)
self.bn4 = get_norm(self.NORM_TYPE,
self.inplanes,
D,
bn_momentum=bn_momentum)
self.block4 = self._make_layer(self.BLOCK,
self.PLANES[3],
self.LAYERS[3],
dilation=dilations[3],
norm_type=self.NORM_TYPE,
bn_momentum=bn_momentum)
self.convtr4p16s2 = conv_tr(self.inplanes,
self.PLANES[4],
kernel_size=space_n_time_m(2, 1),
upsample_stride=space_n_time_m(2, 1),
dilation=1,
bias=False,
conv_type=self.NON_BLOCK_CONV_TYPE,
D=D)
self.bntr4 = get_norm(self.NORM_TYPE,
self.PLANES[4],
D,
bn_momentum=bn_momentum)
self.inplanes = self.PLANES[4] + self.PLANES[2] * self.BLOCK.expansion
self.block5 = self._make_layer(self.BLOCK,
self.PLANES[4],
self.LAYERS[4],
dilation=dilations[4],
norm_type=self.NORM_TYPE,
bn_momentum=bn_momentum)
self.convtr5p8s2 = conv_tr(self.inplanes,
self.PLANES[5],
kernel_size=space_n_time_m(2, 1),
upsample_stride=space_n_time_m(2, 1),
dilation=1,
bias=False,
conv_type=self.NON_BLOCK_CONV_TYPE,
D=D)
self.bntr5 = get_norm(self.NORM_TYPE,
self.PLANES[5],
D,
bn_momentum=bn_momentum)
self.inplanes = self.PLANES[5] + self.PLANES[1] * self.BLOCK.expansion
self.block6 = self._make_layer(self.BLOCK,
self.PLANES[5],
self.LAYERS[5],
dilation=dilations[5],
norm_type=self.NORM_TYPE,
bn_momentum=bn_momentum)
self.convtr6p4s2 = conv_tr(self.inplanes,
self.PLANES[6],
kernel_size=space_n_time_m(2, 1),
upsample_stride=space_n_time_m(2, 1),
dilation=1,
bias=False,
conv_type=self.NON_BLOCK_CONV_TYPE,
D=D)
self.bntr6 = get_norm(self.NORM_TYPE,
self.PLANES[6],
D,
bn_momentum=bn_momentum)
self.inplanes = self.PLANES[6] + self.PLANES[0] * self.BLOCK.expansion
self.block7 = self._make_layer(self.BLOCK,
self.PLANES[6],
self.LAYERS[6],
dilation=dilations[6],
norm_type=self.NORM_TYPE,
bn_momentum=bn_momentum)
self.convtr7p2s2 = conv_tr(self.inplanes,
self.PLANES[7],
kernel_size=space_n_time_m(2, 1),
upsample_stride=space_n_time_m(2, 1),
dilation=1,
bias=False,
conv_type=self.NON_BLOCK_CONV_TYPE,
D=D)
self.bntr7 = get_norm(self.NORM_TYPE,
self.PLANES[7],
D,
bn_momentum=bn_momentum)
self.inplanes = self.PLANES[7] + self.INIT_DIM
self.block8 = self._make_layer(self.BLOCK,
self.PLANES[7],
self.LAYERS[7],
dilation=dilations[7],
norm_type=self.NORM_TYPE,
bn_momentum=bn_momentum)
self.final = conv(self.PLANES[7],
out_channels,
kernel_size=1,
stride=1,
bias=True,
D=D)
self.relu = MinkowskiReLU(inplace=True)