X-Git-Url: https://gerrit.akraino.org/r/gitweb?a=blobdiff_plain;f=example-apps%2FPDD%2Fpcb-defect-detection%2Flibs%2Fnetworks%2Fslim_nets%2Finception_v3.py;fp=example-apps%2FPDD%2Fpcb-defect-detection%2Flibs%2Fnetworks%2Fslim_nets%2Finception_v3.py;h=d64bcfd4748ea103145f7187ef366f46946ae2f8;hb=a785567fb9acfc68536767d20f60ba917ae85aa1;hp=0000000000000000000000000000000000000000;hpb=94a133e696b9b2a7f73544462c2714986fa7ab4a;p=ealt-edge.git

diff --git a/example-apps/PDD/pcb-defect-detection/libs/networks/slim_nets/inception_v3.py b/example-apps/PDD/pcb-defect-detection/libs/networks/slim_nets/inception_v3.py
new file mode 100755
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+++ b/example-apps/PDD/pcb-defect-detection/libs/networks/slim_nets/inception_v3.py
@@ -0,0 +1,560 @@
+# Copyright 2016 The TensorFlow Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==============================================================================
+"""Contains the definition for inception v3 classification network."""
+
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
+import tensorflow as tf
+
+from nets import inception_utils
+
+slim = tf.contrib.slim
+trunc_normal = lambda stddev: tf.truncated_normal_initializer(0.0, stddev)
+
+
+def inception_v3_base(inputs,
+                      final_endpoint='Mixed_7c',
+                      min_depth=16,
+                      depth_multiplier=1.0,
+                      scope=None):
+  """Inception model from http://arxiv.org/abs/1512.00567.
+
+  Constructs an Inception v3 network from inputs to the given final endpoint.
+  This method can construct the network up to the final inception block
+  Mixed_7c.
+
+  Note that the names of the layers in the paper do not correspond to the names
+  of the endpoints registered by this function although they build the same
+  network.
+
+  Here is a mapping from the old_names to the new names:
+  Old name          | New name
+  =======================================
+  conv0             | Conv2d_1a_3x3
+  conv1             | Conv2d_2a_3x3
+  conv2             | Conv2d_2b_3x3
+  pool1             | MaxPool_3a_3x3
+  conv3             | Conv2d_3b_1x1
+  conv4             | Conv2d_4a_3x3
+  pool2             | MaxPool_5a_3x3
+  mixed_35x35x256a  | Mixed_5b
+  mixed_35x35x288a  | Mixed_5c
+  mixed_35x35x288b  | Mixed_5d
+  mixed_17x17x768a  | Mixed_6a
+  mixed_17x17x768b  | Mixed_6b
+  mixed_17x17x768c  | Mixed_6c
+  mixed_17x17x768d  | Mixed_6d
+  mixed_17x17x768e  | Mixed_6e
+  mixed_8x8x1280a   | Mixed_7a
+  mixed_8x8x2048a   | Mixed_7b
+  mixed_8x8x2048b   | Mixed_7c
+
+  Args:
+    inputs: a tensor of size [batch_size, height, width, channels].
+    final_endpoint: specifies the endpoint to construct the network up to. It
+      can be one of ['Conv2d_1a_3x3', 'Conv2d_2a_3x3', 'Conv2d_2b_3x3',
+      'MaxPool_3a_3x3', 'Conv2d_3b_1x1', 'Conv2d_4a_3x3', 'MaxPool_5a_3x3',
+      'Mixed_5b', 'Mixed_5c', 'Mixed_5d', 'Mixed_6a', 'Mixed_6b', 'Mixed_6c',
+      'Mixed_6d', 'Mixed_6e', 'Mixed_7a', 'Mixed_7b', 'Mixed_7c'].
+    min_depth: Minimum depth value (number of channels) for all convolution ops.
+      Enforced when depth_multiplier < 1, and not an active constraint when
+      depth_multiplier >= 1.
+    depth_multiplier: Float multiplier for the depth (number of channels)
+      for all convolution ops. The value must be greater than zero. Typical
+      usage will be to set this value in (0, 1) to reduce the number of
+      parameters or computation cost of the model.
+    scope: Optional variable_scope.
+
+  Returns:
+    tensor_out: output tensor corresponding to the final_endpoint.
+    end_points: a set of activations for external use, for example summaries or
+                losses.
+
+  Raises:
+    ValueError: if final_endpoint is not set to one of the predefined values,
+                or depth_multiplier <= 0
+  """
+  # end_points will collect relevant activations for external use, for example
+  # summaries or losses.
+  end_points = {}
+
+  if depth_multiplier <= 0:
+    raise ValueError('depth_multiplier is not greater than zero.')
+  depth = lambda d: max(int(d * depth_multiplier), min_depth)
+
+  with tf.variable_scope(scope, 'InceptionV3', [inputs]):
+    with slim.arg_scope([slim.conv2d, slim.max_pool2d, slim.avg_pool2d],
+                        stride=1, padding='VALID'):
+      # 299 x 299 x 3
+      end_point = 'Conv2d_1a_3x3'
+      net = slim.conv2d(inputs, depth(32), [3, 3], stride=2, scope=end_point)
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+      # 149 x 149 x 32
+      end_point = 'Conv2d_2a_3x3'
+      net = slim.conv2d(net, depth(32), [3, 3], scope=end_point)
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+      # 147 x 147 x 32
+      end_point = 'Conv2d_2b_3x3'
+      net = slim.conv2d(net, depth(64), [3, 3], padding='SAME', scope=end_point)
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+      # 147 x 147 x 64
+      end_point = 'MaxPool_3a_3x3'
+      net = slim.max_pool2d(net, [3, 3], stride=2, scope=end_point)
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+      # 73 x 73 x 64
+      end_point = 'Conv2d_3b_1x1'
+      net = slim.conv2d(net, depth(80), [1, 1], scope=end_point)
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+      # 73 x 73 x 80.
+      end_point = 'Conv2d_4a_3x3'
+      net = slim.conv2d(net, depth(192), [3, 3], scope=end_point)
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+      # 71 x 71 x 192.
+      end_point = 'MaxPool_5a_3x3'
+      net = slim.max_pool2d(net, [3, 3], stride=2, scope=end_point)
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+      # 35 x 35 x 192.
+
+    # Inception blocks
+    with slim.arg_scope([slim.conv2d, slim.max_pool2d, slim.avg_pool2d],
+                        stride=1, padding='SAME'):
+      # mixed: 35 x 35 x 256.
+      end_point = 'Mixed_5b'
+      with tf.variable_scope(end_point):
+        with tf.variable_scope('Branch_0'):
+          branch_0 = slim.conv2d(net, depth(64), [1, 1], scope='Conv2d_0a_1x1')
+        with tf.variable_scope('Branch_1'):
+          branch_1 = slim.conv2d(net, depth(48), [1, 1], scope='Conv2d_0a_1x1')
+          branch_1 = slim.conv2d(branch_1, depth(64), [5, 5],
+                                 scope='Conv2d_0b_5x5')
+        with tf.variable_scope('Branch_2'):
+          branch_2 = slim.conv2d(net, depth(64), [1, 1], scope='Conv2d_0a_1x1')
+          branch_2 = slim.conv2d(branch_2, depth(96), [3, 3],
+                                 scope='Conv2d_0b_3x3')
+          branch_2 = slim.conv2d(branch_2, depth(96), [3, 3],
+                                 scope='Conv2d_0c_3x3')
+        with tf.variable_scope('Branch_3'):
+          branch_3 = slim.avg_pool2d(net, [3, 3], scope='AvgPool_0a_3x3')
+          branch_3 = slim.conv2d(branch_3, depth(32), [1, 1],
+                                 scope='Conv2d_0b_1x1')
+        net = tf.concat(axis=3, values=[branch_0, branch_1, branch_2, branch_3])
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+
+      # mixed_1: 35 x 35 x 288.
+      end_point = 'Mixed_5c'
+      with tf.variable_scope(end_point):
+        with tf.variable_scope('Branch_0'):
+          branch_0 = slim.conv2d(net, depth(64), [1, 1], scope='Conv2d_0a_1x1')
+        with tf.variable_scope('Branch_1'):
+          branch_1 = slim.conv2d(net, depth(48), [1, 1], scope='Conv2d_0b_1x1')
+          branch_1 = slim.conv2d(branch_1, depth(64), [5, 5],
+                                 scope='Conv_1_0c_5x5')
+        with tf.variable_scope('Branch_2'):
+          branch_2 = slim.conv2d(net, depth(64), [1, 1],
+                                 scope='Conv2d_0a_1x1')
+          branch_2 = slim.conv2d(branch_2, depth(96), [3, 3],
+                                 scope='Conv2d_0b_3x3')
+          branch_2 = slim.conv2d(branch_2, depth(96), [3, 3],
+                                 scope='Conv2d_0c_3x3')
+        with tf.variable_scope('Branch_3'):
+          branch_3 = slim.avg_pool2d(net, [3, 3], scope='AvgPool_0a_3x3')
+          branch_3 = slim.conv2d(branch_3, depth(64), [1, 1],
+                                 scope='Conv2d_0b_1x1')
+        net = tf.concat(axis=3, values=[branch_0, branch_1, branch_2, branch_3])
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+
+      # mixed_2: 35 x 35 x 288.
+      end_point = 'Mixed_5d'
+      with tf.variable_scope(end_point):
+        with tf.variable_scope('Branch_0'):
+          branch_0 = slim.conv2d(net, depth(64), [1, 1], scope='Conv2d_0a_1x1')
+        with tf.variable_scope('Branch_1'):
+          branch_1 = slim.conv2d(net, depth(48), [1, 1], scope='Conv2d_0a_1x1')
+          branch_1 = slim.conv2d(branch_1, depth(64), [5, 5],
+                                 scope='Conv2d_0b_5x5')
+        with tf.variable_scope('Branch_2'):
+          branch_2 = slim.conv2d(net, depth(64), [1, 1], scope='Conv2d_0a_1x1')
+          branch_2 = slim.conv2d(branch_2, depth(96), [3, 3],
+                                 scope='Conv2d_0b_3x3')
+          branch_2 = slim.conv2d(branch_2, depth(96), [3, 3],
+                                 scope='Conv2d_0c_3x3')
+        with tf.variable_scope('Branch_3'):
+          branch_3 = slim.avg_pool2d(net, [3, 3], scope='AvgPool_0a_3x3')
+          branch_3 = slim.conv2d(branch_3, depth(64), [1, 1],
+                                 scope='Conv2d_0b_1x1')
+        net = tf.concat(axis=3, values=[branch_0, branch_1, branch_2, branch_3])
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+
+      # mixed_3: 17 x 17 x 768.
+      end_point = 'Mixed_6a'
+      with tf.variable_scope(end_point):
+        with tf.variable_scope('Branch_0'):
+          branch_0 = slim.conv2d(net, depth(384), [3, 3], stride=2,
+                                 padding='VALID', scope='Conv2d_1a_1x1')
+        with tf.variable_scope('Branch_1'):
+          branch_1 = slim.conv2d(net, depth(64), [1, 1], scope='Conv2d_0a_1x1')
+          branch_1 = slim.conv2d(branch_1, depth(96), [3, 3],
+                                 scope='Conv2d_0b_3x3')
+          branch_1 = slim.conv2d(branch_1, depth(96), [3, 3], stride=2,
+                                 padding='VALID', scope='Conv2d_1a_1x1')
+        with tf.variable_scope('Branch_2'):
+          branch_2 = slim.max_pool2d(net, [3, 3], stride=2, padding='VALID',
+                                     scope='MaxPool_1a_3x3')
+        net = tf.concat(axis=3, values=[branch_0, branch_1, branch_2])
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+
+      # mixed4: 17 x 17 x 768.
+      end_point = 'Mixed_6b'
+      with tf.variable_scope(end_point):
+        with tf.variable_scope('Branch_0'):
+          branch_0 = slim.conv2d(net, depth(192), [1, 1], scope='Conv2d_0a_1x1')
+        with tf.variable_scope('Branch_1'):
+          branch_1 = slim.conv2d(net, depth(128), [1, 1], scope='Conv2d_0a_1x1')
+          branch_1 = slim.conv2d(branch_1, depth(128), [1, 7],
+                                 scope='Conv2d_0b_1x7')
+          branch_1 = slim.conv2d(branch_1, depth(192), [7, 1],
+                                 scope='Conv2d_0c_7x1')
+        with tf.variable_scope('Branch_2'):
+          branch_2 = slim.conv2d(net, depth(128), [1, 1], scope='Conv2d_0a_1x1')
+          branch_2 = slim.conv2d(branch_2, depth(128), [7, 1],
+                                 scope='Conv2d_0b_7x1')
+          branch_2 = slim.conv2d(branch_2, depth(128), [1, 7],
+                                 scope='Conv2d_0c_1x7')
+          branch_2 = slim.conv2d(branch_2, depth(128), [7, 1],
+                                 scope='Conv2d_0d_7x1')
+          branch_2 = slim.conv2d(branch_2, depth(192), [1, 7],
+                                 scope='Conv2d_0e_1x7')
+        with tf.variable_scope('Branch_3'):
+          branch_3 = slim.avg_pool2d(net, [3, 3], scope='AvgPool_0a_3x3')
+          branch_3 = slim.conv2d(branch_3, depth(192), [1, 1],
+                                 scope='Conv2d_0b_1x1')
+        net = tf.concat(axis=3, values=[branch_0, branch_1, branch_2, branch_3])
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+
+      # mixed_5: 17 x 17 x 768.
+      end_point = 'Mixed_6c'
+      with tf.variable_scope(end_point):
+        with tf.variable_scope('Branch_0'):
+          branch_0 = slim.conv2d(net, depth(192), [1, 1], scope='Conv2d_0a_1x1')
+        with tf.variable_scope('Branch_1'):
+          branch_1 = slim.conv2d(net, depth(160), [1, 1], scope='Conv2d_0a_1x1')
+          branch_1 = slim.conv2d(branch_1, depth(160), [1, 7],
+                                 scope='Conv2d_0b_1x7')
+          branch_1 = slim.conv2d(branch_1, depth(192), [7, 1],
+                                 scope='Conv2d_0c_7x1')
+        with tf.variable_scope('Branch_2'):
+          branch_2 = slim.conv2d(net, depth(160), [1, 1], scope='Conv2d_0a_1x1')
+          branch_2 = slim.conv2d(branch_2, depth(160), [7, 1],
+                                 scope='Conv2d_0b_7x1')
+          branch_2 = slim.conv2d(branch_2, depth(160), [1, 7],
+                                 scope='Conv2d_0c_1x7')
+          branch_2 = slim.conv2d(branch_2, depth(160), [7, 1],
+                                 scope='Conv2d_0d_7x1')
+          branch_2 = slim.conv2d(branch_2, depth(192), [1, 7],
+                                 scope='Conv2d_0e_1x7')
+        with tf.variable_scope('Branch_3'):
+          branch_3 = slim.avg_pool2d(net, [3, 3], scope='AvgPool_0a_3x3')
+          branch_3 = slim.conv2d(branch_3, depth(192), [1, 1],
+                                 scope='Conv2d_0b_1x1')
+        net = tf.concat(axis=3, values=[branch_0, branch_1, branch_2, branch_3])
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+      # mixed_6: 17 x 17 x 768.
+      end_point = 'Mixed_6d'
+      with tf.variable_scope(end_point):
+        with tf.variable_scope('Branch_0'):
+          branch_0 = slim.conv2d(net, depth(192), [1, 1], scope='Conv2d_0a_1x1')
+        with tf.variable_scope('Branch_1'):
+          branch_1 = slim.conv2d(net, depth(160), [1, 1], scope='Conv2d_0a_1x1')
+          branch_1 = slim.conv2d(branch_1, depth(160), [1, 7],
+                                 scope='Conv2d_0b_1x7')
+          branch_1 = slim.conv2d(branch_1, depth(192), [7, 1],
+                                 scope='Conv2d_0c_7x1')
+        with tf.variable_scope('Branch_2'):
+          branch_2 = slim.conv2d(net, depth(160), [1, 1], scope='Conv2d_0a_1x1')
+          branch_2 = slim.conv2d(branch_2, depth(160), [7, 1],
+                                 scope='Conv2d_0b_7x1')
+          branch_2 = slim.conv2d(branch_2, depth(160), [1, 7],
+                                 scope='Conv2d_0c_1x7')
+          branch_2 = slim.conv2d(branch_2, depth(160), [7, 1],
+                                 scope='Conv2d_0d_7x1')
+          branch_2 = slim.conv2d(branch_2, depth(192), [1, 7],
+                                 scope='Conv2d_0e_1x7')
+        with tf.variable_scope('Branch_3'):
+          branch_3 = slim.avg_pool2d(net, [3, 3], scope='AvgPool_0a_3x3')
+          branch_3 = slim.conv2d(branch_3, depth(192), [1, 1],
+                                 scope='Conv2d_0b_1x1')
+        net = tf.concat(axis=3, values=[branch_0, branch_1, branch_2, branch_3])
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+
+      # mixed_7: 17 x 17 x 768.
+      end_point = 'Mixed_6e'
+      with tf.variable_scope(end_point):
+        with tf.variable_scope('Branch_0'):
+          branch_0 = slim.conv2d(net, depth(192), [1, 1], scope='Conv2d_0a_1x1')
+        with tf.variable_scope('Branch_1'):
+          branch_1 = slim.conv2d(net, depth(192), [1, 1], scope='Conv2d_0a_1x1')
+          branch_1 = slim.conv2d(branch_1, depth(192), [1, 7],
+                                 scope='Conv2d_0b_1x7')
+          branch_1 = slim.conv2d(branch_1, depth(192), [7, 1],
+                                 scope='Conv2d_0c_7x1')
+        with tf.variable_scope('Branch_2'):
+          branch_2 = slim.conv2d(net, depth(192), [1, 1], scope='Conv2d_0a_1x1')
+          branch_2 = slim.conv2d(branch_2, depth(192), [7, 1],
+                                 scope='Conv2d_0b_7x1')
+          branch_2 = slim.conv2d(branch_2, depth(192), [1, 7],
+                                 scope='Conv2d_0c_1x7')
+          branch_2 = slim.conv2d(branch_2, depth(192), [7, 1],
+                                 scope='Conv2d_0d_7x1')
+          branch_2 = slim.conv2d(branch_2, depth(192), [1, 7],
+                                 scope='Conv2d_0e_1x7')
+        with tf.variable_scope('Branch_3'):
+          branch_3 = slim.avg_pool2d(net, [3, 3], scope='AvgPool_0a_3x3')
+          branch_3 = slim.conv2d(branch_3, depth(192), [1, 1],
+                                 scope='Conv2d_0b_1x1')
+        net = tf.concat(axis=3, values=[branch_0, branch_1, branch_2, branch_3])
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+
+      # mixed_8: 8 x 8 x 1280.
+      end_point = 'Mixed_7a'
+      with tf.variable_scope(end_point):
+        with tf.variable_scope('Branch_0'):
+          branch_0 = slim.conv2d(net, depth(192), [1, 1], scope='Conv2d_0a_1x1')
+          branch_0 = slim.conv2d(branch_0, depth(320), [3, 3], stride=2,
+                                 padding='VALID', scope='Conv2d_1a_3x3')
+        with tf.variable_scope('Branch_1'):
+          branch_1 = slim.conv2d(net, depth(192), [1, 1], scope='Conv2d_0a_1x1')
+          branch_1 = slim.conv2d(branch_1, depth(192), [1, 7],
+                                 scope='Conv2d_0b_1x7')
+          branch_1 = slim.conv2d(branch_1, depth(192), [7, 1],
+                                 scope='Conv2d_0c_7x1')
+          branch_1 = slim.conv2d(branch_1, depth(192), [3, 3], stride=2,
+                                 padding='VALID', scope='Conv2d_1a_3x3')
+        with tf.variable_scope('Branch_2'):
+          branch_2 = slim.max_pool2d(net, [3, 3], stride=2, padding='VALID',
+                                     scope='MaxPool_1a_3x3')
+        net = tf.concat(axis=3, values=[branch_0, branch_1, branch_2])
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+      # mixed_9: 8 x 8 x 2048.
+      end_point = 'Mixed_7b'
+      with tf.variable_scope(end_point):
+        with tf.variable_scope('Branch_0'):
+          branch_0 = slim.conv2d(net, depth(320), [1, 1], scope='Conv2d_0a_1x1')
+        with tf.variable_scope('Branch_1'):
+          branch_1 = slim.conv2d(net, depth(384), [1, 1], scope='Conv2d_0a_1x1')
+          branch_1 = tf.concat(axis=3, values=[
+              slim.conv2d(branch_1, depth(384), [1, 3], scope='Conv2d_0b_1x3'),
+              slim.conv2d(branch_1, depth(384), [3, 1], scope='Conv2d_0b_3x1')])
+        with tf.variable_scope('Branch_2'):
+          branch_2 = slim.conv2d(net, depth(448), [1, 1], scope='Conv2d_0a_1x1')
+          branch_2 = slim.conv2d(
+              branch_2, depth(384), [3, 3], scope='Conv2d_0b_3x3')
+          branch_2 = tf.concat(axis=3, values=[
+              slim.conv2d(branch_2, depth(384), [1, 3], scope='Conv2d_0c_1x3'),
+              slim.conv2d(branch_2, depth(384), [3, 1], scope='Conv2d_0d_3x1')])
+        with tf.variable_scope('Branch_3'):
+          branch_3 = slim.avg_pool2d(net, [3, 3], scope='AvgPool_0a_3x3')
+          branch_3 = slim.conv2d(
+              branch_3, depth(192), [1, 1], scope='Conv2d_0b_1x1')
+        net = tf.concat(axis=3, values=[branch_0, branch_1, branch_2, branch_3])
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+
+      # mixed_10: 8 x 8 x 2048.
+      end_point = 'Mixed_7c'
+      with tf.variable_scope(end_point):
+        with tf.variable_scope('Branch_0'):
+          branch_0 = slim.conv2d(net, depth(320), [1, 1], scope='Conv2d_0a_1x1')
+        with tf.variable_scope('Branch_1'):
+          branch_1 = slim.conv2d(net, depth(384), [1, 1], scope='Conv2d_0a_1x1')
+          branch_1 = tf.concat(axis=3, values=[
+              slim.conv2d(branch_1, depth(384), [1, 3], scope='Conv2d_0b_1x3'),
+              slim.conv2d(branch_1, depth(384), [3, 1], scope='Conv2d_0c_3x1')])
+        with tf.variable_scope('Branch_2'):
+          branch_2 = slim.conv2d(net, depth(448), [1, 1], scope='Conv2d_0a_1x1')
+          branch_2 = slim.conv2d(
+              branch_2, depth(384), [3, 3], scope='Conv2d_0b_3x3')
+          branch_2 = tf.concat(axis=3, values=[
+              slim.conv2d(branch_2, depth(384), [1, 3], scope='Conv2d_0c_1x3'),
+              slim.conv2d(branch_2, depth(384), [3, 1], scope='Conv2d_0d_3x1')])
+        with tf.variable_scope('Branch_3'):
+          branch_3 = slim.avg_pool2d(net, [3, 3], scope='AvgPool_0a_3x3')
+          branch_3 = slim.conv2d(
+              branch_3, depth(192), [1, 1], scope='Conv2d_0b_1x1')
+        net = tf.concat(axis=3, values=[branch_0, branch_1, branch_2, branch_3])
+      end_points[end_point] = net
+      if end_point == final_endpoint: return net, end_points
+    raise ValueError('Unknown final endpoint %s' % final_endpoint)
+
+
+def inception_v3(inputs,
+                 num_classes=1000,
+                 is_training=True,
+                 dropout_keep_prob=0.8,
+                 min_depth=16,
+                 depth_multiplier=1.0,
+                 prediction_fn=slim.softmax,
+                 spatial_squeeze=True,
+                 reuse=None,
+                 scope='InceptionV3'):
+  """Inception model from http://arxiv.org/abs/1512.00567.
+
+  "Rethinking the Inception Architecture for Computer Vision"
+
+  Christian Szegedy, Vincent Vanhoucke, Sergey Ioffe, Jonathon Shlens,
+  Zbigniew Wojna.
+
+  With the default arguments this method constructs the exact model defined in
+  the paper. However, one can experiment with variations of the inception_v3
+  network by changing arguments dropout_keep_prob, min_depth and
+  depth_multiplier.
+
+  The default image size used to train this network is 299x299.
+
+  Args:
+    inputs: a tensor of size [batch_size, height, width, channels].
+    num_classes: number of predicted classes.
+    is_training: whether is training or not.
+    dropout_keep_prob: the percentage of activation values that are retained.
+    min_depth: Minimum depth value (number of channels) for all convolution ops.
+      Enforced when depth_multiplier < 1, and not an active constraint when
+      depth_multiplier >= 1.
+    depth_multiplier: Float multiplier for the depth (number of channels)
+      for all convolution ops. The value must be greater than zero. Typical
+      usage will be to set this value in (0, 1) to reduce the number of
+      parameters or computation cost of the model.
+    prediction_fn: a function to get predictions out of logits.
+    spatial_squeeze: if True, logits is of shape [B, C], if false logits is
+        of shape [B, 1, 1, C], where B is batch_size and C is number of classes.
+    reuse: whether or not the network and its variables should be reused. To be
+      able to reuse 'scope' must be given.
+    scope: Optional variable_scope.
+
+  Returns:
+    logits: the pre-softmax activations, a tensor of size
+      [batch_size, num_classes]
+    end_points: a dictionary from components of the network to the corresponding
+      activation.
+
+  Raises:
+    ValueError: if 'depth_multiplier' is less than or equal to zero.
+  """
+  if depth_multiplier <= 0:
+    raise ValueError('depth_multiplier is not greater than zero.')
+  depth = lambda d: max(int(d * depth_multiplier), min_depth)
+
+  with tf.variable_scope(scope, 'InceptionV3', [inputs, num_classes],
+                         reuse=reuse) as scope:
+    with slim.arg_scope([slim.batch_norm, slim.dropout],
+                        is_training=is_training):
+      net, end_points = inception_v3_base(
+          inputs, scope=scope, min_depth=min_depth,
+          depth_multiplier=depth_multiplier)
+
+      # Auxiliary Head logits
+      with slim.arg_scope([slim.conv2d, slim.max_pool2d, slim.avg_pool2d],
+                          stride=1, padding='SAME'):
+        aux_logits = end_points['Mixed_6e']
+        with tf.variable_scope('AuxLogits'):
+          aux_logits = slim.avg_pool2d(
+              aux_logits, [5, 5], stride=3, padding='VALID',
+              scope='AvgPool_1a_5x5')
+          aux_logits = slim.conv2d(aux_logits, depth(128), [1, 1],
+                                   scope='Conv2d_1b_1x1')
+
+          # Shape of feature map before the final layer.
+          kernel_size = _reduced_kernel_size_for_small_input(
+              aux_logits, [5, 5])
+          aux_logits = slim.conv2d(
+              aux_logits, depth(768), kernel_size,
+              weights_initializer=trunc_normal(0.01),
+              padding='VALID', scope='Conv2d_2a_{}x{}'.format(*kernel_size))
+          aux_logits = slim.conv2d(
+              aux_logits, num_classes, [1, 1], activation_fn=None,
+              normalizer_fn=None, weights_initializer=trunc_normal(0.001),
+              scope='Conv2d_2b_1x1')
+          if spatial_squeeze:
+            aux_logits = tf.squeeze(aux_logits, [1, 2], name='SpatialSqueeze')
+          end_points['AuxLogits'] = aux_logits
+
+      # Final pooling and prediction
+      with tf.variable_scope('Logits'):
+        kernel_size = _reduced_kernel_size_for_small_input(net, [8, 8])
+        net = slim.avg_pool2d(net, kernel_size, padding='VALID',
+                              scope='AvgPool_1a_{}x{}'.format(*kernel_size))
+        # 1 x 1 x 2048
+        net = slim.dropout(net, keep_prob=dropout_keep_prob, scope='Dropout_1b')
+        end_points['PreLogits'] = net
+        # 2048
+        logits = slim.conv2d(net, num_classes, [1, 1], activation_fn=None,
+                             normalizer_fn=None, scope='Conv2d_1c_1x1')
+        if spatial_squeeze:
+          logits = tf.squeeze(logits, [1, 2], name='SpatialSqueeze')
+        # 1000
+      end_points['Logits'] = logits
+      end_points['Predictions'] = prediction_fn(logits, scope='Predictions')
+  return logits, end_points
+inception_v3.default_image_size = 299
+
+
+def _reduced_kernel_size_for_small_input(input_tensor, kernel_size):
+  """Define kernel size which is automatically reduced for small input.
+
+  If the shape of the input images is unknown at graph construction time this
+  function assumes that the input images are is large enough.
+
+  Args:
+    input_tensor: input tensor of size [batch_size, height, width, channels].
+    kernel_size: desired kernel size of length 2: [kernel_height, kernel_width]
+
+  Returns:
+    a tensor with the kernel size.
+
+  TODO(jrru): Make this function work with unknown shapes. Theoretically, this
+  can be done with the code below. Problems are two-fold: (1) If the shape was
+  known, it will be lost. (2) inception.slim.ops._two_element_tuple cannot
+  handle tensors that define the kernel size.
+      shape = tf.shape(input_tensor)
+      return = tf.pack([tf.minimum(shape[1], kernel_size[0]),
+                        tf.minimum(shape[2], kernel_size[1])])
+
+  """
+  shape = input_tensor.get_shape().as_list()
+  if shape[1] is None or shape[2] is None:
+    kernel_size_out = kernel_size
+  else:
+    kernel_size_out = [min(shape[1], kernel_size[0]),
+                       min(shape[2], kernel_size[1])]
+  return kernel_size_out
+
+
+inception_v3_arg_scope = inception_utils.inception_arg_scope