def __init__(self, num_class):
init_deconv = DeconvInitializer()
self.block1 = layer_factory(channel=64, conv_layer_num=2, first=True)
self.block2 = layer_factory(channel=128, conv_layer_num=2)
self.block3 = layer_factory(channel=256, conv_layer_num=3)
self.block4 = layer_factory(channel=512, conv_layer_num=3)
self.block5 = layer_factory(channel=512, conv_layer_num=3)
self.fc6 = rm.Conv2d(4096, filter=7, stride=1, padding=0)
self.dr1 = rm.Dropout(dropout_ratio=0.5)
self.fc7 = rm.Conv2d(4096, filter=1, stride=1, padding=0)
self.dr2 = rm.Dropout(dropout_ratio=0.5)
self.score_fr = rm.Conv2d(num_class, filter=1, stride=1,
padding=0) # n_classes
self.score_pool4 = rm.Conv2d(num_class, filter=1, padding=0)
self.upscore2 = rm.Deconv2d(num_class,
filter=4,
stride=2,
padding=0,
ignore_bias=True,
initializer=init_deconv) # n_classes
self.upscore16 = rm.Deconv2d(num_class,
filter=32,
stride=16,
padding=0,
ignore_bias=True,
initializer=init_deconv) # n_classes
def __init__(self, num_class=1):
self.conv1_1 = rm.Conv2d(64, padding=1, filter=3)
self.bn1_1 = rm.BatchNormalize(mode='feature')
self.conv1_2 = rm.Conv2d(64, padding=1, filter=3)
self.bn1_2 = rm.BatchNormalize(mode='feature')
self.conv2_1 = rm.Conv2d(128, padding=1, filter=3)
self.bn2_1 = rm.BatchNormalize(mode='feature')
self.conv2_2 = rm.Conv2d(128, padding=1, filter=3)
self.bn2_2 = rm.BatchNormalize(mode='feature')
self.conv3_1 = rm.Conv2d(256, padding=1, filter=3)
self.bn3_1 = rm.BatchNormalize(mode='feature')
self.conv3_2 = rm.Conv2d(256, padding=1, filter=3)
self.bn3_2 = rm.BatchNormalize(mode='feature')
self.conv4_1 = rm.Conv2d(512, padding=1, filter=3)
self.bn4_1 = rm.BatchNormalize(mode='feature')
self.conv4_2 = rm.Conv2d(512, padding=1, filter=3)
self.bn4_2 = rm.BatchNormalize(mode='feature')
self.conv5_1 = rm.Conv2d(1024, padding=1, filter=3)
self.bn5_1 = rm.BatchNormalize(mode='feature')
self.conv5_2 = rm.Conv2d(1024, padding=1, filter=3)
self.bn5_2 = rm.BatchNormalize(mode='feature')
self.deconv1 = rm.Deconv2d(512, stride=2)
self.conv6_1 = rm.Conv2d(256, padding=1)
self.conv6_2 = rm.Conv2d(256, padding=1)
self.deconv2 = rm.Deconv2d(256, stride=2)
self.conv7_1 = rm.Conv2d(128, padding=1)
self.conv7_2 = rm.Conv2d(128, padding=1)
self.deconv3 = rm.Deconv2d(128, stride=2)
self.conv8_1 = rm.Conv2d(64, padding=1)
self.conv8_2 = rm.Conv2d(64, padding=1)
self.deconv4 = rm.Deconv2d(64, stride=2)
self.conv9 = rm.Conv2d(num_class, filter=1)
def test_gpu_node_deconvolution2d(a):
with use_cuda():
layer = rm.Deconv2d(channel=32)
layer.params["w"] = rm.Variable(np.random.rand(3, 32, 3, 3))
layer.params["b"] = rm.Variable(np.random.rand(1, 32, 1, 1))
g1 = Variable(a)
g2 = layer(g1)
g3 = rm.sum(g2)
g = g3.grad()
g_g1 = g.get(layer.params["w"])
g_g2 = g.get(layer.params["b"])
g_g3 = g.get(g1)
g2.to_cpu()
g3.to_cpu()
c2 = layer(g1)
c3 = rm.sum(c2)
c = c3.grad()
c_g1 = c.get(layer.params["w"])
c_g2 = c.get(layer.params["b"])
c_g3 = g.get(g1)
close(g2, c2)
close(g3, c3)
close(c_g1, g_g1)
close(c_g2, g_g2)
close(c_g3, g_g3)
def layer_factory_deconv(channel_list=[512, 256]):
layers = []
layers.append(
rm.Conv2d(channel=channel_list[0],
padding=1,
filter=3,
initializer=GlorotUniform()))
layers.append(rm.Relu())
if 'ceil_mode' in inspect.signature(rm.Deconv2d).parameters:
layers.append(
rm.Deconv2d(channel=channel_list[1],
padding=1,
filter=3,
stride=2,
initializer=GlorotUniform(),
ceil_mode=True))
else:
layers.append(
Deconv2d(channel=channel_list[1],
padding=1,
filter=3,
stride=2,
initializer=GlorotUniform(),
ceil_mode=True))
layers.append(rm.Relu())
return rm.Sequential(layers)
def __init__(
self,
latent_dim = 10,
output_shape = (28, 28),
batch_normal = False,
dropout = False,
min_channels = 16,
):
self.batch_normal = batch_normal
self.latent_dim = latent_dim
self.output_shape = output_shape
self.dropout = dropout
self.min_channels = min_channels
print('--- Generator Network ---')
parameters = []
print_params = []
dim = output_shape[0]
channels = self.min_channels
while dim%2 == 0 and dim > 2:
parameters.append(rm.Deconv2d(
channel=channels, stride=2, filter=2))
if batch_normal:
parameters.append(rm.BatchNormalize())
dim = dim // 2
print_params.append([dim, channels])
channels *= 2
if dim%2 == 1:
parameters.append(rm.Deconv2d(
channel=channels, stride=2, filter=3))
if batch_normal:
parameters.append(rm.BatchNormalize())
dim = (dim - 1) // 2
print_params.append([dim, channels])
channels *= 2
parameters.reverse()
print_params.reverse()
print('Dense {}x{}x{} & Reshape'.format(dim, dim,channels))
self.channels = channels
self.transform = rm.Dense(channels*1*dim*dim)
for item in print_params:
print('Deconv2d to {}x{} {}ch '.format(
item[0], item[0], item[1]))
self.hidden = rm.Sequential(parameters)
self.output = rm.Conv2d(channel=1,stride=1,filter=1)
print('Conv2d to {}x{} 1ch'.format(
output_shape[0], output_shape[0]))
self.dim = dim
def __init__(self, num_class):
self.block1 = layer_factory(channel=64, conv_layer_num=2)
self.block2 = layer_factory(channel=128, conv_layer_num=2)
self.block3 = layer_factory(channel=256, conv_layer_num=3)
self.block4 = layer_factory(channel=512, conv_layer_num=3)
self.block5 = layer_factory(channel=512, conv_layer_num=3)
self.fc6 = rm.Conv2d(4096, filter=7, padding=3)
self.fc7 = rm.Conv2d(4096, filter=1)
self.score_fr = rm.Conv2d(num_class, filter=1)
self.score_pool4 = rm.Conv2d(num_class, filter=1)
self.upscore2 = rm.Deconv2d(num_class, filter=2, stride=2, padding=0)
self.upscore16 = rm.Deconv2d(num_class,
filter=16,
stride=16,
padding=0)
def test_gpu_node_upconvolution2d(a):
with use_cuda():
layer = rm.Deconv2d(channel=32)
g1 = Variable(a)
g3 = rm.sum(layer(g1))
g = g3.grad()
g_g1 = g.get(layer.params["w"])
g_g2 = g.get(layer.params["b"])
g_g3 = g.get(g1)
g3.to_cpu()
c3 = rm.sum(layer(g1))
c = c3.grad()
c_g1 = c.get(layer.params["w"])
c_g2 = c.get(layer.params["b"])
c_g3 = g.get(g1)
close(g3, c3)
close(c_g1, g_g1)
close(c_g2, g_g2)
close(c_g3, g_g3)
def __init__(
self,
input_params=32768,
first_shape=(1, 32, 32, 32),
output_shape=(1, 1, 64, 64),
check_network=False,
batchnormal=True,
dropout=False,
down_factor=1.6,
act=rm.Relu(),
last_act=rm.Sigmoid(),
):
self.input_params = input_params
self.latent_dim = input_params
self.first_shape = first_shape
self.output_shape = output_shape
self.act = act
self.last_act = last_act
self.down_factor = down_factor
def decide_factor(src, dst):
factor = np.log(src / dst) / np.log(2)
if factor % 1 == 0:
return factor
return np.ceil(factor)
ch = first_shape[1]
v_factor = decide_factor(output_shape[2], first_shape[2])
h_factor = decide_factor(output_shape[3], first_shape[3])
v_dim, h_dim = first_shape[2], first_shape[3]
parameters = []
check_params = np.array(first_shape[1:]).prod()
self.trans = False
if input_params != check_params:
if check_network:
print('--- Decoder Network ---')
print('inserting Dense({})'.format(check_params))
self.trans = rm.Dense(check_params)
while v_factor != 0 or h_factor != 0:
if batchnormal:
parameters.append(rm.BatchNormalize())
if check_network:
print('BN ', end='')
stride = (2 if v_factor > 0 else 1, 2 if h_factor > 0 else 1)
if check_network:
print('transpose2d ch={}, filter=2, stride={}'.format(
ch, stride))
parameters.append(rm.Deconv2d(channel=ch, filter=2, stride=stride))
if self.act:
parameters.append(self.act)
if ch > output_shape[1]:
ch = int(np.ceil(ch / self.down_factor))
v_dim = v_dim * 2 if v_factor > 0 else v_dim + 1
h_dim = h_dim * 2 if h_factor > 0 else h_dim + 1
v_factor = v_factor - 1 if v_factor > 0 else 0
h_factor = h_factor - 1 if h_factor > 0 else 0
if v_dim > output_shape[2] or h_dim > output_shape[2]:
last_filter = (v_dim - output_shape[2] + 1,
h_dim - output_shape[3] + 1)
if check_network:
print('conv2d filter={}, stride=1'.format(last_filter))
parameters.append(
rm.Conv2d(channel=output_shape[1],
filter=last_filter,
stride=1))
self.parameters = rm.Sequential(parameters)
if check_network:
self.forward(np.zeros((first_shape[0], input_params)),
print_parameter=True)