53 lines
2.1 KiB
Python
53 lines
2.1 KiB
Python
# Copyright (C) 2018-2021 Intel Corporation
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
|
|
from extensions.front.mxnet.ssd_pattern_flatten_softmax_activation import SsdPatternFlattenSoftmaxActivation
|
|
from extensions.front.mxnet.ssd_pattern_remove_flatten import SsdPatternRemoveFlatten
|
|
from extensions.front.mxnet.ssd_pattern_remove_reshape import SsdPatternRemoveReshape
|
|
from mo.front.common.replacement import FrontReplacementSubgraph
|
|
from mo.graph.graph import Graph
|
|
|
|
|
|
class SsdPatternRemoveTranspose(FrontReplacementSubgraph):
|
|
enabled = True
|
|
|
|
def run_before(self):
|
|
return [SsdPatternFlattenSoftmaxActivation, SsdPatternRemoveFlatten, SsdPatternRemoveReshape]
|
|
|
|
def pattern(self):
|
|
return dict(
|
|
nodes=[
|
|
('transpose', dict(op='Transpose')),
|
|
('softmax_activation', dict(op='SoftMax')),
|
|
('multi_box_detection', dict(op='_contrib_MultiBoxDetection'))
|
|
],
|
|
edges=[
|
|
('transpose', 'softmax_activation', {'in': 0}),
|
|
('softmax_activation', 'multi_box_detection', {'in': 1}),
|
|
]
|
|
)
|
|
|
|
def replace_sub_graph(self, graph: Graph, match: dict):
|
|
"""
|
|
Need to find each occurrence of pattern:
|
|
transpose -> SoftmaxActivation -> _contrib_MultiBoxDetection
|
|
remove transpose layer to secure the order of weights in SoftMax to be the same as IE expects
|
|
IE expects weights to be in following order: class-wise values for each priorbox.
|
|
priorboxes change the quickest
|
|
|
|
Parameters
|
|
----------
|
|
graph : Graph
|
|
Graph with loaded model.
|
|
match : dict
|
|
Patterns which were found in graph structure.
|
|
"""
|
|
transpose_node = match['transpose']
|
|
softmax_activation = match['softmax_activation']
|
|
transpose_in_node = transpose_node.in_node(0)
|
|
|
|
graph.remove_edge(transpose_in_node.id, transpose_node.id)
|
|
graph.remove_edge(transpose_node.id, softmax_activation.id)
|
|
graph.remove_node(transpose_node.id)
|
|
graph.create_edge(transpose_in_node, softmax_activation)
|