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"""
Copyright (c) 2017-2018 Intel Corporation
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.
"""
import networkx as nx
from mo.graph.graph import create_edge
from mo.front.common.replacement import FrontReplacementPattern
from extensions.front.mxnet.ssd_pattern_remove_transpose import SsdPatternRemoveTranspose
from extensions.front.mxnet.ssd_pattern_flatten_softmax_activation import SsdPatternFlattenSoftmaxActivation
class SsdReorderDetectionOutInputs(FrontReplacementPattern):
enabled = True
def run_before(self):
return [SsdPatternFlattenSoftmaxActivation, SsdPatternRemoveTranspose]
@staticmethod
def pattern():
return dict(
nodes=[
('multi_box_detection', dict(op='_contrib_MultiBoxDetection'))
],
edges=[])
@staticmethod
def replace_pattern(graph: nx.MultiDiGraph, match: dict):
"""
DetectionOutput layer has another order of inputs unlike mxnet.
Need to reorder _contrib_MultiBoxDetection inputs
for correct conversion to DetectionOutput layer.
Parameters
----------
graph : nx.MultiDiGraph
Graph with loaded model.
"""
multi_box_detection_node = match['multi_box_detection']
conf_node = multi_box_detection_node.in_node(0)
loc_node = multi_box_detection_node.in_node(1)
conf_edge_data = graph.get_edge_data(conf_node.id, multi_box_detection_node.id)
conf_out_port = conf_edge_data[0]['out']
conf_in_port = conf_edge_data[0]['in']
loc_edge_data = graph.get_edge_data(loc_node.id, multi_box_detection_node.id)
loc_out_port = loc_edge_data[0]['out']
loc_in_port = loc_edge_data[0]['in']
graph.remove_edge(conf_node.id, multi_box_detection_node.id)
graph.remove_edge(loc_node.id, multi_box_detection_node.id)
create_edge(loc_node, multi_box_detection_node, in_port=conf_in_port, out_port=conf_out_port)
create_edge(conf_node, multi_box_detection_node, in_port=loc_in_port, out_port=loc_out_port)
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