Python ops.padded_one_hot_encoding方法代碼示例

# 需要導入模塊: from object_detection.utils import ops [as 別名]
# 或者: from object_detection.utils.ops import padded_one_hot_encoding [as 別名]
def _get_inputs(input_queue, num_classes):
  """Dequeue batch and construct inputs to object detection model.

  Args:
    input_queue: BatchQueue object holding enqueued tensor_dicts.
    num_classes: Number of classes.

  Returns:
    images: a list of 3-D float tensor of images.
    locations_list: a list of tensors of shape [num_boxes, 4]
      containing the corners of the groundtruth boxes.
    classes_list: a list of padded one-hot tensors containing target classes.
    masks_list: a list of 3-D float tensors of shape [num_boxes, image_height,
      image_width] containing instance masks for objects if present in the
      input_queue. Else returns None.
  """
  read_data_list = input_queue.dequeue()
  label_id_offset = 1
  def extract_images_and_targets(read_data):
    image = read_data[fields.InputDataFields.image]
    location_gt = read_data[fields.InputDataFields.groundtruth_boxes]
    classes_gt = tf.cast(read_data[fields.InputDataFields.groundtruth_classes],
                         tf.int32)
    classes_gt -= label_id_offset
    classes_gt = util_ops.padded_one_hot_encoding(indices=classes_gt,
                                                  depth=num_classes, left_pad=0)
    masks_gt = read_data.get(fields.InputDataFields.groundtruth_instance_masks)
    return image, location_gt, classes_gt, masks_gt
  return zip(*map(extract_images_and_targets, read_data_list)) 

# 需要導入模塊: from object_detection.utils import ops [as 別名]
# 或者: from object_detection.utils.ops import padded_one_hot_encoding [as 別名]
def test_correct_one_hot_tensor_with_no_pad(self):
    indices = tf.constant([1, 2, 3, 5])
    one_hot_tensor = ops.padded_one_hot_encoding(indices, depth=6, left_pad=0)
    expected_tensor = np.array([[0, 1, 0, 0, 0, 0],
                                [0, 0, 1, 0, 0, 0],
                                [0, 0, 0, 1, 0, 0],
                                [0, 0, 0, 0, 0, 1]], np.float32)
    with self.test_session() as sess:
      out_one_hot_tensor = sess.run(one_hot_tensor)
      self.assertAllClose(out_one_hot_tensor, expected_tensor, rtol=1e-10,
                          atol=1e-10) 

# 需要導入模塊: from object_detection.utils import ops [as 別名]
# 或者: from object_detection.utils.ops import padded_one_hot_encoding [as 別名]
def test_correct_one_hot_tensor_with_pad_one(self):
    indices = tf.constant([1, 2, 3, 5])
    one_hot_tensor = ops.padded_one_hot_encoding(indices, depth=6, left_pad=1)
    expected_tensor = np.array([[0, 0, 1, 0, 0, 0, 0],
                                [0, 0, 0, 1, 0, 0, 0],
                                [0, 0, 0, 0, 1, 0, 0],
                                [0, 0, 0, 0, 0, 0, 1]], np.float32)
    with self.test_session() as sess:
      out_one_hot_tensor = sess.run(one_hot_tensor)
      self.assertAllClose(out_one_hot_tensor, expected_tensor, rtol=1e-10,
                          atol=1e-10) 

# 需要導入模塊: from object_detection.utils import ops [as 別名]
# 或者: from object_detection.utils.ops import padded_one_hot_encoding [as 別名]
def test_correct_one_hot_tensor_with_pad_three(self):
    indices = tf.constant([1, 2, 3, 5])
    one_hot_tensor = ops.padded_one_hot_encoding(indices, depth=6, left_pad=3)
    expected_tensor = np.array([[0, 0, 0, 0, 1, 0, 0, 0, 0],
                                [0, 0, 0, 0, 0, 1, 0, 0, 0],
                                [0, 0, 0, 0, 0, 0, 1, 0, 0],
                                [0, 0, 0, 0, 0, 0, 0, 0, 1]], np.float32)
    with self.test_session() as sess:
      out_one_hot_tensor = sess.run(one_hot_tensor)
      self.assertAllClose(out_one_hot_tensor, expected_tensor, rtol=1e-10,
                          atol=1e-10) 

# 需要導入模塊: from object_detection.utils import ops [as 別名]
# 或者: from object_detection.utils.ops import padded_one_hot_encoding [as 別名]
def test_correct_padded_one_hot_tensor_with_empty_indices(self):
    depth = 6
    pad = 2
    indices = tf.constant([])
    one_hot_tensor = ops.padded_one_hot_encoding(
        indices, depth=depth, left_pad=pad)
    expected_tensor = np.zeros((0, depth + pad))
    with self.test_session() as sess:
      out_one_hot_tensor = sess.run(one_hot_tensor)
      self.assertAllClose(out_one_hot_tensor, expected_tensor, rtol=1e-10,
                          atol=1e-10) 

# 需要導入模塊: from object_detection.utils import ops [as 別名]
# 或者: from object_detection.utils.ops import padded_one_hot_encoding [as 別名]
def test_raise_value_error_on_rank_two_input(self):
    indices = tf.constant(1.0, shape=(2, 3))
    with self.assertRaises(ValueError):
      ops.padded_one_hot_encoding(indices, depth=6, left_pad=2) 

# 需要導入模塊: from object_detection.utils import ops [as 別名]
# 或者: from object_detection.utils.ops import padded_one_hot_encoding [as 別名]
def test_raise_value_error_on_negative_pad(self):
    indices = tf.constant(1.0, shape=(2, 3))
    with self.assertRaises(ValueError):
      ops.padded_one_hot_encoding(indices, depth=6, left_pad=-1) 

# 需要導入模塊: from object_detection.utils import ops [as 別名]
# 或者: from object_detection.utils.ops import padded_one_hot_encoding [as 別名]
def test_raise_value_error_on_float_pad(self):
    indices = tf.constant(1.0, shape=(2, 3))
    with self.assertRaises(ValueError):
      ops.padded_one_hot_encoding(indices, depth=6, left_pad=0.1) 

# 需要導入模塊: from object_detection.utils import ops [as 別名]
# 或者: from object_detection.utils.ops import padded_one_hot_encoding [as 別名]
def test_raise_value_error_on_float_depth(self):
    indices = tf.constant(1.0, shape=(2, 3))
    with self.assertRaises(ValueError):
      ops.padded_one_hot_encoding(indices, depth=0.1, left_pad=2) 

# 需要導入模塊: from object_detection.utils import ops [as 別名]
# 或者: from object_detection.utils.ops import padded_one_hot_encoding [as 別名]
def test_return_none_on_zero_depth(self):
    indices = tf.constant([1, 2, 3, 4, 5])
    one_hot_tensor = ops.padded_one_hot_encoding(indices, depth=0, left_pad=2)
    self.assertEqual(one_hot_tensor, None)