Python backend.int_shape函数代码示例

  def _compute_output_shape(self, input_shape):
    input_shape = tuple(tensor_shape.TensorShape(input_shape).as_list())

    if self._output_shape is None:
      x = K.placeholder(shape=input_shape)
      x = self.call(x)
      if isinstance(x, list):
        return [tensor_shape.TensorShape(K.int_shape(x_elem)) for x_elem in x]
      else:
        return tensor_shape.TensorShape(K.int_shape(x))
    elif isinstance(self._output_shape, (tuple, list)):
      if isinstance(input_shape, list):
        num_samples = input_shape[0][0]
      else:
        num_samples = input_shape[0] if input_shape else None
      return tensor_shape.TensorShape((num_samples,) +
                                      tuple(self._output_shape))
    else:
      shape = self._output_shape(input_shape)
      if not isinstance(shape, (list, tuple)):
        raise ValueError(
            '`output_shape` function must return a tuple or a list of tuples.')
      if isinstance(shape, list):
        if isinstance(shape[0], int) or shape[0] is None:
          shape = tuple(shape)
      return tensor_shape.TensorShape(shape)

  def set_model(self, model):
    self.model = model
    self.sess = K.get_session()
    if self.histogram_freq and self.merged is None:
      for layer in self.model.layers:
        for weight in layer.weights:
          mapped_weight_name = weight.name.replace(':', '_')
          tf_summary.histogram(mapped_weight_name, weight)
          if self.write_grads:
            grads = model.optimizer.get_gradients(model.total_loss, weight)

            def is_indexed_slices(grad):
              return type(grad).__name__ == 'IndexedSlices'

            grads = [grad.values if is_indexed_slices(grad) else grad
                     for grad in grads]
            tf_summary.histogram('{}_grad'.format(mapped_weight_name), grads)
          if self.write_images:
            w_img = array_ops.squeeze(weight)
            shape = K.int_shape(w_img)
            if len(shape) == 2:  # dense layer kernel case
              if shape[0] > shape[1]:
                w_img = array_ops.transpose(w_img)
                shape = K.int_shape(w_img)
              w_img = array_ops.reshape(w_img, [1, shape[0], shape[1], 1])
            elif len(shape) == 3:  # convnet case
              if K.image_data_format() == 'channels_last':
                # switch to channels_first to display
                # every kernel as a separate image
                w_img = array_ops.transpose(w_img, perm=[2, 0, 1])
                shape = K.int_shape(w_img)
              w_img = array_ops.reshape(w_img,
                                        [shape[0], shape[1], shape[2], 1])
            elif len(shape) == 1:  # bias case
              w_img = array_ops.reshape(w_img, [1, shape[0], 1, 1])
            else:
              # not possible to handle 3D convnets etc.
              continue

            shape = K.int_shape(w_img)
            assert len(shape) == 4 and shape[-1] in [1, 3, 4]
            tf_summary.image(mapped_weight_name, w_img)

        if hasattr(layer, 'output'):
          tf_summary.histogram('{}_out'.format(layer.name), layer.output)
    self.merged = tf_summary.merge_all()

    if self.write_graph:
      self.writer = tf_summary.FileWriter(self.log_dir, self.sess.graph)
    else:
      self.writer = tf_summary.FileWriter(self.log_dir)

  def __call__(self, inputs, initial_state=None, constants=None, **kwargs):
    inputs, initial_state, constants = self._standardize_args(
        inputs, initial_state, constants)

    if initial_state is None and constants is None:
      return super(ConvRNN2D, self).__call__(inputs, **kwargs)

    # If any of `initial_state` or `constants` are specified and are Keras
    # tensors, then add them to the inputs and temporarily modify the
    # input_spec to include them.

    additional_inputs = []
    additional_specs = []
    if initial_state is not None:
      kwargs['initial_state'] = initial_state
      additional_inputs += initial_state
      self.state_spec = []
      for state in initial_state:
        shape = K.int_shape(state)
        self.state_spec.append(InputSpec(shape=shape))

      additional_specs += self.state_spec
    if constants is not None:
      kwargs['constants'] = constants
      additional_inputs += constants
      self.constants_spec = [InputSpec(shape=K.int_shape(constant))
                             for constant in constants]
      self._num_constants = len(constants)
      additional_specs += self.constants_spec
    # at this point additional_inputs cannot be empty
    for tensor in additional_inputs:
      if K.is_keras_tensor(tensor) != K.is_keras_tensor(additional_inputs[0]):
        raise ValueError('The initial state or constants of an RNN'
                         ' layer cannot be specified with a mix of'
                         ' Keras tensors and non-Keras tensors')

    if K.is_keras_tensor(additional_inputs[0]):
      # Compute the full input spec, including state and constants
      full_input = [inputs] + additional_inputs
      full_input_spec = self.input_spec + additional_specs
      # Perform the call with temporarily replaced input_spec
      original_input_spec = self.input_spec
      self.input_spec = full_input_spec
      output = super(ConvRNN2D, self).__call__(full_input, **kwargs)
      self.input_spec = original_input_spec
      return output
    else:
      return super(ConvRNN2D, self).__call__(inputs, **kwargs)

  def get_updates(self, loss, params):
    grads = self.get_gradients(loss, params)
    self.updates = [K.update_add(self.iterations, 1)]

    lr = self.lr
    if self.initial_decay > 0:
      lr = lr * (1. /  # pylint: disable=g-no-augmented-assignment
                 (1. + self.decay * K.cast(self.iterations,
                                           K.dtype(self.decay))))
    # momentum
    shapes = [K.int_shape(p) for p in params]
    moments = [K.zeros(shape) for shape in shapes]
    self.weights = [self.iterations] + moments
    for p, g, m in zip(params, grads, moments):
      v = self.momentum * m - lr * g  # velocity
      self.updates.append(K.update(m, v))

      if self.nesterov:
        new_p = p + self.momentum * v - lr * g
      else:
        new_p = p + v

      # Apply constraints.
      if getattr(p, 'constraint', None) is not None:
        new_p = p.constraint(new_p)

      self.updates.append(K.update(p, new_p))
    return self.updates

  def get_updates(self, loss, params):
    grads = self.get_gradients(loss, params)
    self.updates = [K.update_add(self.iterations, 1)]

    lr = self.lr
    if self.initial_decay > 0:
      lr *= (1. /
             (1. + self.decay * K.cast(self.iterations, K.dtype(self.decay))))

    t = K.cast(self.iterations, K.floatx()) + 1
    lr_t = lr / (1. - K.pow(self.beta_1, t))

    shapes = [K.int_shape(p) for p in params]
    # zero init of 1st moment
    ms = [K.zeros(shape) for shape in shapes]
    # zero init of exponentially weighted infinity norm
    us = [K.zeros(shape) for shape in shapes]
    self.weights = [self.iterations] + ms + us

    for p, g, m, u in zip(params, grads, ms, us):

      m_t = (self.beta_1 * m) + (1. - self.beta_1) * g
      u_t = K.maximum(self.beta_2 * u, K.abs(g))
      p_t = p - lr_t * m_t / (u_t + self.epsilon)

      self.updates.append(K.update(m, m_t))
      self.updates.append(K.update(u, u_t))
      new_p = p_t

      # Apply constraints.
      if getattr(p, 'constraint', None) is not None:
        new_p = p.constraint(new_p)

      self.updates.append(K.update(p, new_p))
    return self.updates

  def get_constants(self, inputs, training=None):
    constants = []
    if self.implementation != 0 and 0 < self.dropout < 1:
      input_shape = K.int_shape(inputs)
      input_dim = input_shape[-1]
      ones = K.ones_like(K.reshape(inputs[:, 0, 0], (-1, 1)))
      ones = K.tile(ones, (1, int(input_dim)))

      def dropped_inputs():
        return K.dropout(ones, self.dropout)

      dp_mask = [
          K.in_train_phase(dropped_inputs, ones, training=training)
          for _ in range(3)
      ]
      constants.append(dp_mask)
    else:
      constants.append([K.cast_to_floatx(1.) for _ in range(3)])

    if 0 < self.recurrent_dropout < 1:
      ones = K.ones_like(K.reshape(inputs[:, 0, 0], (-1, 1)))
      ones = K.tile(ones, (1, self.units))

      def dropped_inputs():  # pylint: disable=function-redefined
        return K.dropout(ones, self.recurrent_dropout)

      rec_dp_mask = [
          K.in_train_phase(dropped_inputs, ones, training=training)
          for _ in range(3)
      ]
      constants.append(rec_dp_mask)
    else:
      constants.append([K.cast_to_floatx(1.) for _ in range(3)])
    return constants

  def get_updates(self, loss, params):
    grads = self.get_gradients(loss, params)
    self.updates = [state_ops.assign_add(self.iterations, 1)]

    lr = self.lr
    if self.initial_decay > 0:
      lr = lr * (  # pylint: disable=g-no-augmented-assignment
          1. / (1. + self.decay * math_ops.cast(self.iterations,
                                                K.dtype(self.decay))))

    t = math_ops.cast(self.iterations, K.floatx()) + 1
    lr_t = lr * (
        K.sqrt(1. - math_ops.pow(self.beta_2, t)) /
        (1. - math_ops.pow(self.beta_1, t)))

    ms = [K.zeros(K.int_shape(p), dtype=K.dtype(p)) for p in params]
    vs = [K.zeros(K.int_shape(p), dtype=K.dtype(p)) for p in params]
    if self.amsgrad:
      vhats = [K.zeros(K.int_shape(p), dtype=K.dtype(p)) for p in params]
    else:
      vhats = [K.zeros(1) for _ in params]
    self.weights = [self.iterations] + ms + vs + vhats

    for p, g, m, v, vhat in zip(params, grads, ms, vs, vhats):
      m_t = (self.beta_1 * m) + (1. - self.beta_1) * g
      v_t = (self.beta_2 * v) + (1. - self.beta_2) * math_ops.square(g)
      if self.amsgrad:
        vhat_t = math_ops.maximum(vhat, v_t)
        p_t = p - lr_t * m_t / (K.sqrt(vhat_t) + self.epsilon)
        self.updates.append(state_ops.assign(vhat, vhat_t))
      else:
        p_t = p - lr_t * m_t / (K.sqrt(v_t) + self.epsilon)

      self.updates.append(state_ops.assign(m, m_t))
      self.updates.append(state_ops.assign(v, v_t))
      new_p = p_t

      # Apply constraints.
      if getattr(p, 'constraint', None) is not None:
        new_p = p.constraint(new_p)

      self.updates.append(state_ops.assign(p, new_p))
    return self.updates

  def __call__(self, inputs, initial_state=None, **kwargs):
    if isinstance(inputs, list):
      if len(inputs) > 1:
        initial_state = inputs[1:]
      inputs = inputs[0]

    if initial_state is None:
      return super(Bidirectional, self).__call__(inputs, **kwargs)

    # Standardize `initial_state` into list
    if isinstance(initial_state, tuple):
      initial_state = list(initial_state)
    elif not isinstance(initial_state, list):
      initial_state = [initial_state]

    # Check if `initial_state` can be splitted into half
    num_states = len(initial_state)
    if num_states % 2 > 0:
      raise ValueError(
          'When passing `initial_state` to a Bidirectional RNN, the state '
          'should be a list containing the states of the underlying RNNs. '
          'Found: ' + str(initial_state))

    # Applies the same workaround as in `RNN.__call__`, without handling
    # constants
    kwargs['initial_state'] = initial_state
    additional_inputs = initial_state
    additional_specs = [InputSpec(shape=K.int_shape(state))
                        for state in initial_state]
    self.forward_layer.state_spec = additional_specs[:num_states // 2]
    self.backward_layer.state_spec = additional_specs[num_states // 2:]

    is_keras_tensor = K.is_keras_tensor(additional_inputs[0])
    for tensor in additional_inputs:
      if K.is_keras_tensor(tensor) != is_keras_tensor:
        raise ValueError('The initial state of a Bidirectional'
                         ' layer cannot be specified with a mix of'
                         ' Keras tensors and non-Keras tensors'
                         ' (a "Keras tensor" is a tensor that was'
                         ' returned by a Keras layer, or by `Input`)')

    if is_keras_tensor:
      # Compute the full input spec, including state
      full_input = [inputs] + additional_inputs
      full_input_spec = self.input_spec + additional_specs

      # Perform the call with temporarily replaced input_spec
      original_input_spec = self.input_spec
      self.input_spec = full_input_spec
      output = super(Bidirectional, self).__call__(full_input, **kwargs)
      self.input_spec = original_input_spec
      return output
    else:
      return super(Bidirectional, self).__call__(inputs, **kwargs)

  def call(self, inputs, training=None, mask=None):
    kwargs = {}
    if generic_utils.has_arg(self.layer.call, 'training'):
      kwargs['training'] = training
    uses_learning_phase = False  # pylint: disable=redefined-outer-name

    input_shape = K.int_shape(inputs)
    if input_shape[0]:
      # batch size matters, use rnn-based implementation
      def step(x, _):
        global uses_learning_phase  # pylint: disable=global-variable-undefined
        output = self.layer.call(x, **kwargs)
        if hasattr(output, '_uses_learning_phase'):
          uses_learning_phase = (output._uses_learning_phase or
                                 uses_learning_phase)
        return output, []

      _, outputs, _ = K.rnn(
          step,
          inputs,
          initial_states=[],
          input_length=input_shape[0],
          unroll=False)
      y = outputs
    else:
      # No batch size specified, therefore the layer will be able
      # to process batches of any size.
      # We can go with reshape-based implementation for performance.
      input_length = input_shape[1]
      if not input_length:
        input_length = array_ops.shape(inputs)[1]
      # Shape: (num_samples * timesteps, ...). And track the
      # transformation in self._input_map.
      input_uid = generic_utils.object_list_uid(inputs)
      inputs = array_ops.reshape(inputs, (-1,) + input_shape[2:])
      self._input_map[input_uid] = inputs
      # (num_samples * timesteps, ...)
      y = self.layer.call(inputs, **kwargs)
      if hasattr(y, '_uses_learning_phase'):
        uses_learning_phase = y._uses_learning_phase
      # Shape: (num_samples, timesteps, ...)
      output_shape = self.compute_output_shape(input_shape).as_list()
      y = array_ops.reshape(y, (-1, input_length) + tuple(output_shape[2:]))

    # Apply activity regularizer if any:
    if (hasattr(self.layer, 'activity_regularizer') and
        self.layer.activity_regularizer is not None):
      regularization_loss = self.layer.activity_regularizer(y)
      self.add_loss(regularization_loss, inputs)

    if uses_learning_phase:
      y._uses_learning_phase = True
    return y

  def pop(self):
    """Removes the last layer in the model.

    Raises:
        TypeError: if there are no layers in the model.
    """
    if not self.layers:
      raise TypeError('There are no layers in the model.')

    self.layers.pop()
    if not self.layers:
      self.outputs = []
      self._inbound_nodes = []
      self._outbound_nodes = []
    else:
      self.layers[-1]._outbound_nodes = []
      self.outputs = [self.layers[-1].output]
      # update self._inbound_nodes
      self._inbound_nodes[0].output_tensors = self.outputs
      self._inbound_nodes[0].output_shapes = [K.int_shape(self.outputs[0])]
    self.built = False

def transition_block(x, reduction, name):
  """A transition block.

  Arguments:
      x: input tensor.
      reduction: float, compression rate at transition layers.
      name: string, block label.

  Returns:
      output tensor for the block.
  """
  bn_axis = 3 if K.image_data_format() == 'channels_last' else 1
  x = BatchNormalization(axis=bn_axis, epsilon=1.001e-5, name=name + '_bn')(x)
  x = Activation('relu', name=name + '_relu')(x)
  x = Conv2D(
      int(K.int_shape(x)[bn_axis] * reduction),
      1,
      use_bias=False,
      name=name + '_conv')(
          x)
  x = AveragePooling2D(2, strides=2, name=name + '_pool')(x)
  return x

def _eager_metrics_fn(model, outputs, targets):
  """Calculates the metrics for each output of the given model.

  Arguments:
      model: The model on which metrics are being calculated.
      outputs: The outputs of the given model.
      targets: The predictions or targets of the given model.

  Returns:
      Returns the metric names and metric results for each output of the model.
  """
  metric_names = []
  metric_results = []
  if not isinstance(outputs, list):
    outputs = [outputs]

  if not isinstance(targets, list):
    targets = [targets]

  for i in range(len(model.outputs)):
    output_metrics = model.nested_metrics[i]
    for nested_output_metric in output_metrics:
      metric_name, metric_fn = _get_metrics_info(
          nested_output_metric, backend.int_shape(model.outputs[i]),
          model.loss_functions[i])

      if len(model.output_names) > 1:
        metric_name = model.output_names[i] + '_' + metric_name
        if metric_name not in model.metrics_names:
          model.metrics_names.append(metric_name)

      with backend.name_scope(metric_name):
        metric_result = metric_fn(outputs[i], targets[i])
        metric_names.append(metric_name)
        metric_results.append(backend.mean(metric_result))

  return metric_results

  def call(self, inputs, mask=None, training=None, initial_state=None):
    # input shape: `(samples, time (padded with zeros), input_dim)`
    # note that the .build() method of subclasses MUST define
    # self.input_spec and self.state_spec with complete input shapes.
    if isinstance(inputs, list):
      initial_state = inputs[1:]
      inputs = inputs[0]
    elif initial_state is not None:
      pass
    elif self.stateful:
      initial_state = self.states
    else:
      initial_state = self.get_initial_state(inputs)

    if isinstance(mask, list):
      mask = mask[0]

    if len(initial_state) != len(self.states):
      raise ValueError('Layer has ' + str(len(self.states)) +
                       ' states but was passed ' + str(len(initial_state)) +
                       ' initial states.')
    input_shape = K.int_shape(inputs)
    if self.unroll and input_shape[1] is None:
      raise ValueError('Cannot unroll a RNN if the '
                       'time dimension is undefined. \n'
                       '- If using a Sequential model, '
                       'specify the time dimension by passing '
                       'an `input_shape` or `batch_input_shape` '
                       'argument to your first layer. If your '
                       'first layer is an Embedding, you can '
                       'also use the `input_length` argument.\n'
                       '- If using the functional API, specify '
                       'the time dimension by passing a `shape` '
                       'or `batch_shape` argument to your Input layer.')
    constants = self.get_constants(inputs, training=None)
    preprocessed_input = self.preprocess_input(inputs, training=None)
    last_output, outputs, states = K.rnn(
        self.step,
        preprocessed_input,
        initial_state,
        go_backwards=self.go_backwards,
        mask=mask,
        constants=constants,
        unroll=self.unroll)
    if self.stateful:
      updates = []
      for i in range(len(states)):
        updates.append((self.states[i], states[i]))
      self.add_update(updates, inputs)

    # Properly set learning phase
    if 0 < self.dropout + self.recurrent_dropout:
      last_output._uses_learning_phase = True
      outputs._uses_learning_phase = True

    if not self.return_sequences:
      outputs = last_output

    if self.return_state:
      if not isinstance(states, (list, tuple)):
        states = [states]
      else:
        states = list(states)
      return [outputs] + states
    return outputs

  def call(self,
           inputs,
           mask=None,
           training=None,
           initial_state=None,
           constants=None):
    # note that the .build() method of subclasses MUST define
    # self.input_spec and self.state_spec with complete input shapes.
    if isinstance(inputs, list):
      inputs = inputs[0]
    if initial_state is not None:
      pass
    elif self.stateful:
      initial_state = self.states
    else:
      initial_state = self.get_initial_state(inputs)

    if isinstance(mask, list):
      mask = mask[0]

    if len(initial_state) != len(self.states):
      raise ValueError('Layer has ' + str(len(self.states)) +
                       ' states but was passed ' +
                       str(len(initial_state)) +
                       ' initial states.')
    timesteps = K.int_shape(inputs)[1]

    kwargs = {}
    if generic_utils.has_arg(self.cell.call, 'training'):
      kwargs['training'] = training

    if constants:
      if not generic_utils.has_arg(self.cell.call, 'constants'):
        raise ValueError('RNN cell does not support constants')

      def step(inputs, states):
        constants = states[-self._num_constants:]
        states = states[:-self._num_constants]
        return self.cell.call(inputs, states, constants=constants,
                              **kwargs)
    else:
      def step(inputs, states):
        return self.cell.call(inputs, states, **kwargs)

    last_output, outputs, states = K.rnn(step,
                                         inputs,
                                         initial_state,
                                         constants=constants,
                                         go_backwards=self.go_backwards,
                                         mask=mask,
                                         input_length=timesteps)
    if self.stateful:
      updates = []
      for i in range(len(states)):
        updates.append(K.update(self.states[i], states[i]))
      self.add_update(updates, inputs=True)

    if self.return_sequences:
      output = outputs
    else:
      output = last_output

    # Properly set learning phase
    if getattr(last_output, '_uses_learning_phase', False):
      output._uses_learning_phase = True

    if self.return_state:
      if not isinstance(states, (list, tuple)):
        states = [states]
      else:
        states = list(states)
      return [output] + states
    else:
      return output

#.........这里部分代码省略.........
      weights[0] = weights[0][:, 0, :, :]

    if layer.__class__.__name__ == 'Conv2D':
      if layer.data_format == 'channels_first':
        # old: (filters, stack_size, kernel_rows, kernel_cols)
        # new: (kernel_rows, kernel_cols, stack_size, filters)
        weights[0] = np.transpose(weights[0], (2, 3, 1, 0))

    if layer.__class__.__name__ == 'Conv2DTranspose':
      if layer.data_format == 'channels_last':
        # old: (kernel_rows, kernel_cols, stack_size, filters)
        # new: (kernel_rows, kernel_cols, filters, stack_size)
        weights[0] = np.transpose(weights[0], (0, 1, 3, 2))
      if layer.data_format == 'channels_first':
        # old: (filters, stack_size, kernel_rows, kernel_cols)
        # new: (kernel_rows, kernel_cols, filters, stack_size)
        weights[0] = np.transpose(weights[0], (2, 3, 0, 1))

    if layer.__class__.__name__ == 'Conv3D':
      if layer.data_format == 'channels_first':
        # old: (filters, stack_size, ...)
        # new: (..., stack_size, filters)
        weights[0] = np.transpose(weights[0], (2, 3, 4, 1, 0))

    if layer.__class__.__name__ == 'GRU':
      if len(weights) == 9:
        kernel = np.concatenate([weights[0], weights[3], weights[6]], axis=-1)
        recurrent_kernel = np.concatenate(
            [weights[1], weights[4], weights[7]], axis=-1)
        bias = np.concatenate([weights[2], weights[5], weights[8]], axis=-1)
        weights = [kernel, recurrent_kernel, bias]

    if layer.__class__.__name__ == 'LSTM':
      if len(weights) == 12:
        # old: i, c, f, o
        # new: i, f, c, o
        kernel = np.concatenate(
            [weights[0], weights[6], weights[3], weights[9]], axis=-1)
        recurrent_kernel = np.concatenate(
            [weights[1], weights[7], weights[4], weights[10]], axis=-1)
        bias = np.concatenate(
            [weights[2], weights[8], weights[5], weights[11]], axis=-1)
        weights = [kernel, recurrent_kernel, bias]

    if layer.__class__.__name__ == 'ConvLSTM2D':
      if len(weights) == 12:
        kernel = np.concatenate(
            [weights[0], weights[6], weights[3], weights[9]], axis=-1)
        recurrent_kernel = np.concatenate(
            [weights[1], weights[7], weights[4], weights[10]], axis=-1)
        bias = np.concatenate(
            [weights[2], weights[8], weights[5], weights[11]], axis=-1)
        if layer.data_format == 'channels_first':
          # old: (filters, stack_size, kernel_rows, kernel_cols)
          # new: (kernel_rows, kernel_cols, stack_size, filters)
          kernel = np.transpose(kernel, (2, 3, 1, 0))
          recurrent_kernel = np.transpose(recurrent_kernel, (2, 3, 1, 0))
        weights = [kernel, recurrent_kernel, bias]

    if layer.__class__.__name__ in ['Model', 'Sequential']:
      new_weights = []
      # trainable weights
      for sublayer in layer.layers:
        num_weights = len(sublayer.trainable_weights)
        if num_weights > 0:
          new_weights.extend(
              preprocess_weights_for_loading(
                  layer=sublayer,
                  weights=weights[:num_weights],
                  original_keras_version=original_keras_version,
                  original_backend=original_backend))
          weights = weights[num_weights:]

      # non-trainable weights
      for sublayer in layer.layers:
        num_weights = len([
            l for l in sublayer.weights if l not in sublayer.trainable_weights
        ])
        if num_weights > 0:
          new_weights.extend(
              preprocess_weights_for_loading(
                  layer=sublayer,
                  weights=weights[:num_weights],
                  original_keras_version=original_keras_version,
                  original_backend=original_backend))
          weights = weights[num_weights:]
      weights = new_weights

  conv_layers = ['Conv1D', 'Conv2D', 'Conv3D', 'Conv2DTranspose', 'ConvLSTM2D']
  if layer.__class__.__name__ in conv_layers:
    if original_backend == 'theano':
      weights[0] = conv_utils.convert_kernel(weights[0])
      if layer.__class__.__name__ == 'ConvLSTM2D':
        weights[1] = conv_utils.convert_kernel(weights[1])
    if K.int_shape(layer.weights[0]) != weights[0].shape:
      weights[0] = np.transpose(weights[0], (3, 2, 0, 1))
      if layer.__class__.__name__ == 'ConvLSTM2D':
        weights[1] = np.transpose(weights[1], (3, 2, 0, 1))

  return _convert_rnn_weights(layer, weights)