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Merge pull request #16391 from l-bat:ngraph_lrn

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Alexander Alekhin 2020-01-21 10:08:54 +00:00
commit 6bc953e911
1 changed files with 10 additions and 2 deletions
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12
modules/dnn/src/layers/lrn_layer.cpp
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@ -96,7 +96,7 @@ public:
return bias == (int)bias;
}
if (backendId == DNN_BACKEND_INFERENCE_ENGINE_NGRAPH) {
return type == CHANNEL_NRM && bias == (int)bias;
return bias == (int)bias;
}
return backendId == DNN_BACKEND_OPENCV || backendId == DNN_BACKEND_HALIDE;
}
@ -412,7 +412,15 @@ public:
alphaSize *= (type == SPATIAL_NRM ? size*size : size);
auto& ieInpNode = nodes[0].dynamicCast<InfEngineNgraphNode>()->node;
auto lrn = std::make_shared<ngraph::op::LRN>(ieInpNode, (double)alphaSize, (double)beta, (double)bias, (size_t)size);
std::vector<int64_t> axes;
if (type != SPATIAL_NRM) {
axes = {1};
} else {
axes.resize(ieInpNode->get_shape().size() - 2);
std::iota(axes.begin(), axes.end(), 2);
}
auto ngraph_axes = std::make_shared<ngraph::op::Constant>(ngraph::element::i64, ngraph::Shape{axes.size()}, axes.data());
auto lrn = std::make_shared<ngraph::op::LRN>(ieInpNode, ngraph_axes, alphaSize, beta, bias, size);
return Ptr<BackendNode>(new InfEngineNgraphNode(lrn));
}
#endif // HAVE_DNN_NGRAPH