Merge pull request #15184 from l-bat:IE_R2

Support new IE API (#15184)

* Add support OpenVINO R2 for layers

* Add Core API

* Fix tests

* Fix expectNoFallbacksFromIE for ONNX nets

* Remove deprecated API

* Remove td

* Remove TargetDevice

* Fix Async

* Add test

* Fix detectMyriadX

* Fix test

* Fix warning

modules/dnn/src/dnn.cpp

@@ -713,21 +713,23 @@ struct DataLayer : public Layer
         CV_Assert(numChannels <= 4);
 
         // Scale
-        auto weights = InferenceEngine::make_shared_blob<float>(InferenceEngine::Precision::FP32,
-                                                                {numChannels});
+        InferenceEngine::TensorDesc td(InferenceEngine::Precision::FP32, {numChannels},
+                                       InferenceEngine::Layout::C);
+        auto weights = InferenceEngine::make_shared_blob<float>(td);
         weights->allocate();
-        weights->set(std::vector<float>(numChannels, scaleFactors[0]));
+
+        float* weight_buf = weights->buffer().as<float*>();
+        std::fill(weight_buf, weight_buf + numChannels, scaleFactors[0]);
 
         // Mean subtraction
-        auto biases = InferenceEngine::make_shared_blob<float>(InferenceEngine::Precision::FP32,
-                                                               {numChannels});
+        auto biases = InferenceEngine::make_shared_blob<float>(td);
         biases->allocate();
-        std::vector<float> biasesVec(numChannels);
+        float* bias_buf = biases->buffer().as<float*>();
+
         for (int i = 0; i < numChannels; ++i)
         {
-            biasesVec[i] = -means[0][i] * scaleFactors[0];
+            bias_buf[i] = -means[0][i] * scaleFactors[0];
         }
-        biases->set(biasesVec);
 
         InferenceEngine::Builder::Layer ieLayer = InferenceEngine::Builder::ScaleShiftLayer(name);
         addConstantData("weights", weights, ieLayer);
@@ -1473,7 +1475,11 @@ struct Net::Impl
                 for (int i = 0; i < ld.outputBlobsWrappers.size(); ++i)
                 {
                     InferenceEngine::DataPtr dataPtr = infEngineDataNode(ld.outputBlobsWrappers[i]);
+#if defined(INF_ENGINE_RELEASE) && INF_ENGINE_VER_MAJOR_LE(2019010000)
                     dataPtr->name = netInputLayer->outNames.empty() ? ld.name : netInputLayer->outNames[i];
+#else
+                    dataPtr->setName(netInputLayer->outNames.empty() ? ld.name : netInputLayer->outNames[i]);
+#endif
                 }
             }
             else
@@ -1481,7 +1487,11 @@ struct Net::Impl
                 for (int i = 0; i < ld.outputBlobsWrappers.size(); ++i)
                 {
                     InferenceEngine::DataPtr dataPtr = infEngineDataNode(ld.outputBlobsWrappers[i]);
+#if defined(INF_ENGINE_RELEASE) && INF_ENGINE_VER_MAJOR_LE(2019010000)
                     dataPtr->name = ld.name;
+#else
+                    dataPtr->setName(ld.name);
+#endif
                 }
             }
         }
@@ -1502,7 +1512,11 @@ struct Net::Impl
                     for (int i = 0; i < ld.inputBlobsWrappers.size(); ++i)
                     {
                         InferenceEngine::DataPtr dataPtr = infEngineDataNode(ld.inputBlobsWrappers[i]);
+#if defined(INF_ENGINE_RELEASE) && INF_ENGINE_VER_MAJOR_LE(2019010000)
                         dataPtr->name = netInputLayer->outNames[i];
+#else
+                        dataPtr->setName(netInputLayer->outNames[i]);
+#endif
                     }
                 }
                 else
@@ -1510,7 +1524,11 @@ struct Net::Impl
                     for (int i = 0; i < ld.outputBlobsWrappers.size(); ++i)
                     {
                         InferenceEngine::DataPtr dataPtr = infEngineDataNode(ld.outputBlobsWrappers[i]);
+#if defined(INF_ENGINE_RELEASE) && INF_ENGINE_VER_MAJOR_LE(2019010000)
                         dataPtr->name = ld.name;
+#else
+                        dataPtr->setName(ld.name);
+#endif
                     }
                 }
                 ieNode->net->addBlobs(ld.inputBlobsWrappers);

modules/dnn/src/layers/blank_layer.cpp

@@ -111,7 +111,8 @@ public:
     virtual Ptr<BackendNode> initInfEngine(const std::vector<Ptr<BackendWrapper> >& inputs) CV_OVERRIDE
     {
         InferenceEngine::DataPtr input = infEngineDataNode(inputs[0]);
-        CV_Assert(!input->dims.empty());
+        std::vector<size_t> dims = input->getDims();
+        CV_Assert(!dims.empty());
 
         InferenceEngine::Builder::Layer ieLayer(name);
         ieLayer.setName(name);
@@ -122,12 +123,10 @@ public:
         else
         {
             ieLayer.setType("Split");
-            ieLayer.getParameters()["axis"] = input->dims.size() - 1;
-            ieLayer.getParameters()["out_sizes"] = input->dims[0];
+            ieLayer.getParameters()["axis"] = dims.size() - 1;
+            ieLayer.getParameters()["out_sizes"] = dims[0];
         }
-        std::vector<size_t> shape(input->dims);
-        std::reverse(shape.begin(), shape.end());
-        ieLayer.setInputPorts({InferenceEngine::Port(shape)});
+        ieLayer.setInputPorts({InferenceEngine::Port(dims)});
         ieLayer.setOutputPorts(std::vector<InferenceEngine::Port>(1));
         return Ptr<BackendNode>(new InfEngineBackendNode(ieLayer));
     }

modules/dnn/src/layers/concat_layer.cpp

@@ -304,7 +304,7 @@ public:
         InferenceEngine::DataPtr input = infEngineDataNode(inputs[0]);
 
         InferenceEngine::Builder::ConcatLayer ieLayer(name);
-        ieLayer.setAxis(clamp(axis, input->dims.size()));
+        ieLayer.setAxis(clamp(axis, input->getDims().size()));
         ieLayer.setInputPorts(std::vector<InferenceEngine::Port>(inputs.size()));
         return Ptr<BackendNode>(new InfEngineBackendNode(ieLayer));
     }

modules/dnn/src/layers/convolution_layer.cpp

@@ -465,14 +465,13 @@ public:
     virtual Ptr<BackendNode> initInfEngine(const std::vector<Ptr<BackendWrapper> > &inputs) CV_OVERRIDE
     {
         InferenceEngine::DataPtr input = infEngineDataNode(inputs[0]);
-        CV_Assert(input->dims.size() == 4 || input->dims.size() == 5);
-
-        const int inpCn = input->dims[input->dims.size() - 2];  // NOTE: input->dims are reversed (WHIO or WHDIO)
+        std::vector<size_t> dims = input->getDims();
+        CV_Assert(dims.size() == 4 || dims.size() == 5);
+        const int inpCn = dims[1];
         const int outCn = blobs[0].size[0];
         const int inpGroupCn = blobs[0].size[1];
         const int group = inpCn / inpGroupCn;
-
-        InferenceEngine::Layout layout = (input->dims.size() == 4) ? InferenceEngine::Layout::OIHW :
+        InferenceEngine::Layout layout = (dims.size() == 4) ? InferenceEngine::Layout::OIHW :
                                                               InferenceEngine::Layout::NCDHW;
 
         auto ieWeights = wrapToInfEngineBlob(blobs[0], layout);
@@ -485,9 +484,10 @@ public:
             }
             else
             {
-                ieWeights = InferenceEngine::make_shared_blob<float>(
-                                    InferenceEngine::Precision::FP32, layout,
-                                    ieWeights->dims());
+                ieWeights = InferenceEngine::make_shared_blob<float>({
+                                InferenceEngine::Precision::FP32,
+                                ieWeights->getTensorDesc().getDims(), layout
+                            });
                 ieWeights->allocate();
 
                 Mat newWeights = infEngineBlobToMat(ieWeights).reshape(1, outCn);
@@ -1877,9 +1877,10 @@ public:
         auto ieWeights = wrapToInfEngineBlob(blobs[0], layout);
         if (fusedWeights)
         {
-            ieWeights = InferenceEngine::make_shared_blob<float>(
-                                InferenceEngine::Precision::FP32, layout,
-                                ieWeights->dims());
+            ieWeights = InferenceEngine::make_shared_blob<float>({
+                            InferenceEngine::Precision::FP32,
+                            ieWeights->getTensorDesc().getDims(), layout
+                        });
             ieWeights->allocate();
 
             int inpCn = blobs[0].size[0];

modules/dnn/src/layers/normalize_bbox_layer.cpp

@@ -261,7 +261,8 @@ public:
     virtual Ptr<BackendNode> initInfEngine(const std::vector<Ptr<BackendWrapper> >& inputs) CV_OVERRIDE
     {
         InferenceEngine::DataPtr input = infEngineDataNode(inputs[0]);
-        if (input->dims.size() == 4)
+        std::vector<size_t> dims = input->getDims();
+        if (dims.size() == 4)
         {
             InferenceEngine::Builder::NormalizeLayer ieLayer(name);
 
@@ -270,13 +271,14 @@ public:
             ieLayer.setEpsilon(epsilon);
 
             InferenceEngine::Builder::Layer l = ieLayer;
-            const int numChannels = input->dims[2];  // NOTE: input->dims are reversed (whcn)
+            const int numChannels = dims[1];
             InferenceEngine::Blob::Ptr weights;
             if (blobs.empty())
             {
-                weights = InferenceEngine::make_shared_blob<float>(InferenceEngine::Precision::FP32,
-                                                                   InferenceEngine::Layout::C,
-                                                                   {(size_t)numChannels});
+                weights = InferenceEngine::make_shared_blob<float>({
+                              InferenceEngine::Precision::FP32,
+                              {(size_t)numChannels}, InferenceEngine::Layout::C
+                          });
                 weights->allocate();
 
                 Mat weightsMat = infEngineBlobToMat(weights).reshape(1, numChannels);

modules/dnn/src/layers/pooling_layer.cpp

@@ -166,9 +166,11 @@ public:
             if (kernel_size.size() == 3)
                 return preferableTarget == DNN_TARGET_CPU;
             if (preferableTarget == DNN_TARGET_MYRIAD) {
+#if defined(INF_ENGINE_RELEASE) && INF_ENGINE_VER_MAJOR_LE(INF_ENGINE_RELEASE_2019R1)
                 if (type == MAX && (pad_l == 1 && pad_t == 1) && stride == Size(2, 2) ) {
                     return !isMyriadX();
                 }
+#endif
                 return type == MAX || type == AVE;
             }
             else

modules/dnn/src/layers/scale_layer.cpp

@@ -207,12 +207,13 @@ public:
         }
         else
         {
-            auto weights = InferenceEngine::make_shared_blob<float>(InferenceEngine::Precision::FP32,
-                                                                    {numChannels});
+            auto weights = InferenceEngine::make_shared_blob<float>({
+                               InferenceEngine::Precision::FP32, {(size_t)numChannels},
+                               InferenceEngine::Layout::C
+                           });
             weights->allocate();
-
-            std::vector<float> ones(numChannels, 1);
-            weights->set(ones);
+            float* buf = weights->buffer().as<float*>();
+            std::fill(buf, buf + numChannels, 1);
             addConstantData("weights", weights, l);
         }
         if (hasBias)

modules/dnn/src/layers/slice_layer.cpp

@@ -301,14 +301,14 @@ public:
         {
             std::vector<size_t> outShape(numDims);
             for (int i = 0; i < numDims; ++i)
-                outShape[numDims - 1 - i] = sliceRanges[0][i].size();
+                outShape[i] = sliceRanges[0][i].size();
 
             ieLayer.getInputPorts()[1].setParameter("type", "weights");
 
-            // Fake blob which will be moved to inputs (as weights).
-            auto shapeSource = InferenceEngine::make_shared_blob<float>(
-                                   InferenceEngine::Precision::FP32,
-                                   InferenceEngine::Layout::ANY, outShape);
+            auto shapeSource = InferenceEngine::make_shared_blob<float>({
+                                   InferenceEngine::Precision::FP32, outShape,
+                                   InferenceEngine::Layout::ANY
+                               });
             shapeSource->allocate();
             addConstantData("weights", shapeSource, ieLayer);
         }

modules/dnn/src/layers/softmax_layer.cpp

@@ -315,7 +315,8 @@ public:
         InferenceEngine::DataPtr input = infEngineDataNode(inputs[0]);
 
         InferenceEngine::Builder::SoftMaxLayer ieLayer(name);
-        ieLayer.setAxis(clamp(axisRaw, input->dims.size()));
+        ieLayer.setAxis(clamp(axisRaw, input->getDims().size()));
+
         return Ptr<BackendNode>(new InfEngineBackendNode(ieLayer));
     }
 #endif  // HAVE_INF_ENGINE

modules/dnn/src/op_inf_engine.cpp

@@ -45,13 +45,13 @@ infEngineWrappers(const std::vector<Ptr<BackendWrapper> >& ptrs)
 InfEngineBackendNet::InfEngineBackendNet() : netBuilder("")
 {
     hasNetOwner = false;
-    targetDevice = InferenceEngine::TargetDevice::eCPU;
+    device_name = "CPU";
 }
 
 InfEngineBackendNet::InfEngineBackendNet(InferenceEngine::CNNNetwork& net) : netBuilder(""), cnn(net)
 {
     hasNetOwner = true;
-    targetDevice = InferenceEngine::TargetDevice::eCPU;
+    device_name = "CPU";
 }
 
 void InfEngineBackendNet::connect(const std::vector<Ptr<BackendWrapper> >& inputs,
@@ -66,16 +66,13 @@ void InfEngineBackendNet::connect(const std::vector<Ptr<BackendWrapper> >& input
     for (size_t i = 0; i < inpWrappers.size(); ++i)
     {
         const auto& inp = inpWrappers[i];
-        const std::string& inpName = inp->dataPtr->name;
+        const std::string& inpName = inp->dataPtr->getName();
         int inpId;
         it = layers.find(inpName);
         if (it == layers.end())
         {
             InferenceEngine::Builder::InputLayer inpLayer(!inpName.empty() ? inpName : kDefaultInpLayerName);
-
-            std::vector<size_t> shape(inp->blob->dims());
-            std::reverse(shape.begin(), shape.end());
-
+            std::vector<size_t> shape(inp->blob->getTensorDesc().getDims());
             inpLayer.setPort(InferenceEngine::Port(shape));
             inpId = netBuilder.addLayer(inpLayer);
 
@@ -89,7 +86,11 @@ void InfEngineBackendNet::connect(const std::vector<Ptr<BackendWrapper> >& input
     }
     CV_Assert(!outputs.empty());
     InferenceEngine::DataPtr dataPtr = infEngineDataNode(outputs[0]);
+#if INF_ENGINE_VER_MAJOR_LE(INF_ENGINE_RELEASE_2019R1)
     dataPtr->name = layerName;
+#else
+    dataPtr->setName(layerName);
+#endif
 }
 
 void InfEngineBackendNet::init(int targetId)
@@ -116,20 +117,21 @@ void InfEngineBackendNet::init(int targetId)
     switch (targetId)
     {
         case DNN_TARGET_CPU:
-        targetDevice = InferenceEngine::TargetDevice::eCPU;
+            device_name = "CPU";
             break;
-    case DNN_TARGET_OPENCL: case DNN_TARGET_OPENCL_FP16:
-        targetDevice = InferenceEngine::TargetDevice::eGPU;
+        case DNN_TARGET_OPENCL:
+        case DNN_TARGET_OPENCL_FP16:
+            device_name = "GPU";
             break;
         case DNN_TARGET_MYRIAD:
-        targetDevice = InferenceEngine::TargetDevice::eMYRIAD;
+            device_name = "MYRIAD";
             break;
         case DNN_TARGET_FPGA:
-        targetDevice = InferenceEngine::TargetDevice::eFPGA;
+            device_name = "FPGA";
             break;
         default:
-        CV_Error(Error::StsError, format("Unknown target identifier: %d", targetId));
-    }
+            CV_Error(Error::StsNotImplemented, "Unknown target");
+    };
 
     for (const auto& name : requestedOutputs)
     {
@@ -141,14 +143,14 @@ void InfEngineBackendNet::init(int targetId)
         const std::string& name = it.first;
         auto blobIt = allBlobs.find(name);
         CV_Assert(blobIt != allBlobs.end());
-        it.second->setPrecision(blobIt->second->precision());
+        it.second->setPrecision(blobIt->second->getTensorDesc().getPrecision());
     }
     for (const auto& it : cnn.getOutputsInfo())
     {
         const std::string& name = it.first;
         auto blobIt = allBlobs.find(name);
         CV_Assert(blobIt != allBlobs.end());
-        it.second->setPrecision(blobIt->second->precision());  // Should be always FP32
+        it.second->setPrecision(blobIt->second->getTensorDesc().getPrecision());  // Should be always FP32
     }
 
     initPlugin(cnn);
@@ -223,16 +225,13 @@ static InferenceEngine::Layout estimateLayout(const Mat& m)
 
 static InferenceEngine::DataPtr wrapToInfEngineDataNode(const Mat& m, const std::string& name = "")
 {
-    std::vector<size_t> reversedShape(&m.size[0], &m.size[0] + m.dims);
-    std::reverse(reversedShape.begin(), reversedShape.end());
+    std::vector<size_t> shape(&m.size[0], &m.size[0] + m.dims);
     if (m.type() == CV_32F)
-        return InferenceEngine::DataPtr(
-            new InferenceEngine::Data(name, reversedShape, InferenceEngine::Precision::FP32, estimateLayout(m))
-        );
+        return InferenceEngine::DataPtr(new InferenceEngine::Data(name,
+               {InferenceEngine::Precision::FP32, shape, estimateLayout(m)}));
     else if (m.type() == CV_8U)
-        return InferenceEngine::DataPtr(
-            new InferenceEngine::Data(name, reversedShape, InferenceEngine::Precision::U8, estimateLayout(m))
-        );
+        return InferenceEngine::DataPtr(new InferenceEngine::Data(name,
+               {InferenceEngine::Precision::U8, shape, estimateLayout(m)}));
     else
         CV_Error(Error::StsNotImplemented, format("Unsupported data type %d", m.type()));
 }
@@ -241,33 +240,33 @@ InferenceEngine::Blob::Ptr wrapToInfEngineBlob(const Mat& m, const std::vector<s
                                                InferenceEngine::Layout layout)
 {
     if (m.type() == CV_32F)
-        return InferenceEngine::make_shared_blob<float>(InferenceEngine::Precision::FP32,
-                                                        layout, shape, (float*)m.data);
+        return InferenceEngine::make_shared_blob<float>(
+               {InferenceEngine::Precision::FP32, shape, layout}, (float*)m.data);
     else if (m.type() == CV_8U)
-        return InferenceEngine::make_shared_blob<uint8_t>(InferenceEngine::Precision::U8,
-                                                          layout, shape, (uint8_t*)m.data);
+        return InferenceEngine::make_shared_blob<uint8_t>(
+               {InferenceEngine::Precision::U8, shape, layout}, (uint8_t*)m.data);
     else
         CV_Error(Error::StsNotImplemented, format("Unsupported data type %d", m.type()));
 }
 
 InferenceEngine::Blob::Ptr wrapToInfEngineBlob(const Mat& m, InferenceEngine::Layout layout)
 {
-    std::vector<size_t> reversedShape(&m.size[0], &m.size[0] + m.dims);
-    std::reverse(reversedShape.begin(), reversedShape.end());
-    return wrapToInfEngineBlob(m, reversedShape, layout);
+    std::vector<size_t> shape(&m.size[0], &m.size[0] + m.dims);
+    return wrapToInfEngineBlob(m, shape, layout);
 }
 
 InferenceEngine::Blob::Ptr cloneBlob(const InferenceEngine::Blob::Ptr& blob)
 {
-    InferenceEngine::Precision precision = blob->precision();
     InferenceEngine::Blob::Ptr copy;
+    auto description = blob->getTensorDesc();
+    InferenceEngine::Precision precision = description.getPrecision();
     if (precision == InferenceEngine::Precision::FP32)
     {
-        copy = InferenceEngine::make_shared_blob<float>(precision, blob->layout(), blob->dims());
+        copy = InferenceEngine::make_shared_blob<float>(description);
     }
     else if (precision == InferenceEngine::Precision::U8)
     {
-        copy = InferenceEngine::make_shared_blob<uint8_t>(precision, blob->layout(), blob->dims());
+        copy = InferenceEngine::make_shared_blob<uint8_t>(description);
     }
     else
         CV_Error(Error::StsNotImplemented, "Unsupported blob precision");
@@ -296,10 +295,8 @@ InfEngineBackendWrapper::InfEngineBackendWrapper(Ptr<BackendWrapper> wrapper)
     Ptr<InfEngineBackendWrapper> ieWrapper = wrapper.dynamicCast<InfEngineBackendWrapper>();
     CV_Assert(!ieWrapper.empty());
     InferenceEngine::DataPtr srcData = ieWrapper->dataPtr;
-    dataPtr = InferenceEngine::DataPtr(
-        new InferenceEngine::Data(srcData->name, srcData->dims, srcData->precision,
-                                  srcData->layout)
-    );
+
+    dataPtr = InferenceEngine::DataPtr(new InferenceEngine::Data(srcData->getName(), srcData->getTensorDesc()));
     blob = ieWrapper->blob;
 }
 
@@ -323,12 +320,19 @@ void InfEngineBackendWrapper::setHostDirty()
 
 }
 
-static std::map<InferenceEngine::TargetDevice, InferenceEngine::InferenceEnginePluginPtr>& getSharedPlugins()
+#if INF_ENGINE_VER_MAJOR_LE(INF_ENGINE_RELEASE_2019R1)
+static std::map<std::string, InferenceEngine::InferenceEnginePluginPtr>& getSharedPlugins()
 {
-    static std::map<InferenceEngine::TargetDevice, InferenceEngine::InferenceEnginePluginPtr> sharedPlugins;
+    static std::map<std::string, InferenceEngine::InferenceEnginePluginPtr> sharedPlugins;
     return sharedPlugins;
 }
-
+#else
+static InferenceEngine::Core& getCore()
+{
+    static InferenceEngine::Core core;
+    return core;
+}
+#endif
 
 #if !defined(OPENCV_DNN_IE_VPU_TYPE_DEFAULT)
 static bool detectMyriadX_()
@@ -361,24 +365,29 @@ static bool detectMyriadX_()
     InferenceEngine::CNNNetwork cnn = InferenceEngine::CNNNetwork(
                                       InferenceEngine::Builder::convertToICNNNetwork(builder.build()));
 
-    InferenceEngine::TargetDevice device = InferenceEngine::TargetDevice::eMYRIAD;
+#if INF_ENGINE_VER_MAJOR_LE(INF_ENGINE_RELEASE_2019R1)
     InferenceEngine::InferenceEnginePluginPtr enginePtr;
     {
         AutoLock lock(getInitializationMutex());
         auto& sharedPlugins = getSharedPlugins();
-        auto pluginIt = sharedPlugins.find(device);
+        auto pluginIt = sharedPlugins.find("MYRIAD");
         if (pluginIt != sharedPlugins.end()) {
             enginePtr = pluginIt->second;
         } else {
             auto dispatcher = InferenceEngine::PluginDispatcher({""});
-            enginePtr = dispatcher.getSuitablePlugin(device);
-            sharedPlugins[device] = enginePtr;
+            enginePtr = dispatcher.getPluginByDevice("MYRIAD");
+            sharedPlugins["MYRIAD"] = enginePtr;
         }
     }
     auto plugin = InferenceEngine::InferencePlugin(enginePtr);
     try
     {
         auto netExec = plugin.LoadNetwork(cnn, {{"VPU_PLATFORM", "VPU_2480"}});
+#else
+    try
+    {
+        auto netExec = getCore().LoadNetwork(cnn, "MYRIAD", {{"VPU_PLATFORM", "VPU_2480"}});
+#endif
         auto infRequest = netExec.CreateInferRequest();
     } catch(...) {
         return false;
@@ -387,38 +396,41 @@ static bool detectMyriadX_()
 }
 #endif  // !defined(OPENCV_DNN_IE_VPU_TYPE_DEFAULT)
 
-void InfEngineBackendNet::initPlugin(InferenceEngine::ICNNNetwork& net)
+void InfEngineBackendNet::initPlugin(InferenceEngine::CNNNetwork& net)
 {
     CV_Assert(!isInitialized());
 
     try
     {
         AutoLock lock(getInitializationMutex());
+#if INF_ENGINE_VER_MAJOR_LE(INF_ENGINE_RELEASE_2019R1)
         auto& sharedPlugins = getSharedPlugins();
-        auto pluginIt = sharedPlugins.find(targetDevice);
+        auto pluginIt = sharedPlugins.find(device_name);
         if (pluginIt != sharedPlugins.end())
         {
             enginePtr = pluginIt->second;
         }
         else
+#endif
         {
+#if INF_ENGINE_VER_MAJOR_LE(INF_ENGINE_RELEASE_2019R1)
             auto dispatcher = InferenceEngine::PluginDispatcher({""});
-            if (targetDevice == InferenceEngine::TargetDevice::eFPGA)
+            if (device_name == "FPGA")
                 enginePtr = dispatcher.getPluginByDevice("HETERO:FPGA,CPU");
             else
-                enginePtr = dispatcher.getSuitablePlugin(targetDevice);
-            sharedPlugins[targetDevice] = enginePtr;
-
+                enginePtr = dispatcher.getPluginByDevice(device_name);
+            sharedPlugins[device_name] = enginePtr;
+#else
+            isInit = true;
+#endif
             std::vector<std::string> candidates;
-
             std::string param_pluginPath = utils::getConfigurationParameterString("OPENCV_DNN_IE_EXTRA_PLUGIN_PATH", "");
             if (!param_pluginPath.empty())
             {
                 candidates.push_back(param_pluginPath);
             }
 
-            if (targetDevice == InferenceEngine::TargetDevice::eCPU ||
-                targetDevice == InferenceEngine::TargetDevice::eFPGA)
+            if (device_name == "CPU" || device_name == "FPGA")
             {
                 std::string suffixes[] = {"_avx2", "_sse4", ""};
                 bool haveFeature[] = {
@@ -448,7 +460,12 @@ void InfEngineBackendNet::initPlugin(InferenceEngine::ICNNNetwork& net)
                 {
                     InferenceEngine::IExtensionPtr extension =
                         InferenceEngine::make_so_pointer<InferenceEngine::IExtension>(libName);
+
+#if INF_ENGINE_VER_MAJOR_LE(INF_ENGINE_RELEASE_2019R1)
                     enginePtr->AddExtension(extension, 0);
+#else
+                    getCore().AddExtension(extension, "CPU");
+#endif
                     CV_LOG_INFO(NULL, "DNN-IE: Loaded extension plugin: " << libName);
                     found = true;
                     break;
@@ -462,14 +479,24 @@ void InfEngineBackendNet::initPlugin(InferenceEngine::ICNNNetwork& net)
             // Some of networks can work without a library of extra layers.
 #ifndef _WIN32
             // Limit the number of CPU threads.
+#if INF_ENGINE_VER_MAJOR_LE(INF_ENGINE_RELEASE_2019R1)
             enginePtr->SetConfig({{
                 InferenceEngine::PluginConfigParams::KEY_CPU_THREADS_NUM, format("%d", getNumThreads()),
             }}, 0);
+#else
+            if (device_name == "CPU")
+                getCore().SetConfig({{
+                    InferenceEngine::PluginConfigParams::KEY_CPU_THREADS_NUM, format("%d", getNumThreads()),
+                }}, device_name);
+#endif
 #endif
         }
+#if INF_ENGINE_VER_MAJOR_LE(INF_ENGINE_RELEASE_2019R1)
         plugin = InferenceEngine::InferencePlugin(enginePtr);
-
         netExec = plugin.LoadNetwork(net, {});
+#else
+        netExec = getCore().LoadNetwork(net, device_name);
+#endif
     }
     catch (const std::exception& ex)
     {
@@ -479,7 +506,11 @@ void InfEngineBackendNet::initPlugin(InferenceEngine::ICNNNetwork& net)
 
 bool InfEngineBackendNet::isInitialized()
 {
+#if INF_ENGINE_VER_MAJOR_LE(INF_ENGINE_RELEASE_2019R1)
     return (bool)enginePtr;
+#else
+    return isInit;
+#endif
 }
 
 void InfEngineBackendNet::addBlobs(const std::vector<cv::Ptr<BackendWrapper> >& ptrs)
@@ -487,7 +518,7 @@ void InfEngineBackendNet::addBlobs(const std::vector<cv::Ptr<BackendWrapper> >&
     auto wrappers = infEngineWrappers(ptrs);
     for (const auto& wrapper : wrappers)
     {
-        std::string name = wrapper->dataPtr->name;
+        std::string name = wrapper->dataPtr->getName();
         name = name.empty() ? kDefaultInpLayerName : name;
         allBlobs.insert({name, wrapper->blob});
     }
@@ -502,7 +533,7 @@ void InfEngineBackendNet::InfEngineReqWrapper::makePromises(const std::vector<Pt
     for (int i = 0; i < outs.size(); ++i)
     {
         outs[i]->futureMat = outProms[i].getArrayResult();
-        outsNames[i] = outs[i]->dataPtr->name;
+        outsNames[i] = outs[i]->dataPtr->getName();
     }
 }
 
@@ -626,11 +657,12 @@ void InfEngineBackendNet::forward(const std::vector<Ptr<BackendWrapper> >& outBl
 Mat infEngineBlobToMat(const InferenceEngine::Blob::Ptr& blob)
 {
     // NOTE: Inference Engine sizes are reversed.
-    std::vector<size_t> dims = blob->dims();
-    std::vector<int> size(dims.rbegin(), dims.rend());
+    std::vector<size_t> dims = blob->getTensorDesc().getDims();
+    std::vector<int> size(dims.begin(), dims.end());
+    auto precision = blob->getTensorDesc().getPrecision();
 
     int type = -1;
-    switch (blob->precision())
+    switch (precision)
     {
         case InferenceEngine::Precision::FP32: type = CV_32F; break;
         case InferenceEngine::Precision::U8: type = CV_8U; break;
@@ -684,7 +716,10 @@ void InfEngineBackendLayer::forward(InputArrayOfArrays inputs, OutputArrayOfArra
 
 InferenceEngine::Blob::Ptr convertFp16(const InferenceEngine::Blob::Ptr& blob)
 {
-    auto halfs = InferenceEngine::make_shared_blob<int16_t>(InferenceEngine::Precision::FP16, blob->layout(), blob->dims());
+    auto halfs = InferenceEngine::make_shared_blob<int16_t>({
+                     InferenceEngine::Precision::FP16, blob->getTensorDesc().getDims(),
+                     blob->getTensorDesc().getLayout()
+                 });
     halfs->allocate();
     Mat floatsData(1, blob->size(), CV_32F, blob->buffer());
     Mat halfsData(1, blob->size(), CV_16SC1, halfs->buffer());
@@ -731,7 +766,11 @@ void resetMyriadDevice()
 {
 #ifdef HAVE_INF_ENGINE
     AutoLock lock(getInitializationMutex());
-    getSharedPlugins().erase(InferenceEngine::TargetDevice::eMYRIAD);
+#if INF_ENGINE_VER_MAJOR_LE(INF_ENGINE_RELEASE_2019R1)
+    getSharedPlugins().erase("MYRIAD");
+#else
+    getCore().UnregisterPlugin("MYRIAD");
+#endif
 #endif  // HAVE_INF_ENGINE
 }
 

modules/dnn/src/op_inf_engine.hpp

@@ -92,18 +92,22 @@ public:
     void forward(const std::vector<Ptr<BackendWrapper> >& outBlobsWrappers,
                  bool isAsync);
 
-    void initPlugin(InferenceEngine::ICNNNetwork& net);
+    void initPlugin(InferenceEngine::CNNNetwork& net);
 
     void addBlobs(const std::vector<cv::Ptr<BackendWrapper> >& ptrs);
 
 private:
     InferenceEngine::Builder::Network netBuilder;
 
-    InferenceEngine::InferenceEnginePluginPtr enginePtr;
-    InferenceEngine::InferencePlugin plugin;
     InferenceEngine::ExecutableNetwork netExec;
     InferenceEngine::BlobMap allBlobs;
-    InferenceEngine::TargetDevice targetDevice;
+    std::string device_name;
+#if INF_ENGINE_VER_MAJOR_LE(2019010000)
+    InferenceEngine::InferenceEnginePluginPtr enginePtr;
+    InferenceEngine::InferencePlugin plugin;
+#else
+    bool isInit = false;
+#endif
 
     struct InfEngineReqWrapper
     {

modules/dnn/test/test_ie_models.cpp

@@ -136,13 +136,10 @@ static const std::vector<std::string> getOpenVINOTestModelsList()
 
 static inline void genData(const std::vector<size_t>& dims, Mat& m, Blob::Ptr& dataPtr)
 {
-    std::vector<int> reversedDims(dims.begin(), dims.end());
-    std::reverse(reversedDims.begin(), reversedDims.end());
-
-    m.create(reversedDims, CV_32F);
+    m.create(std::vector<int>(dims.begin(), dims.end()), CV_32F);
     randu(m, -1, 1);
 
-    dataPtr = make_shared_blob<float>(Precision::FP32, dims, (float*)m.data);
+    dataPtr = make_shared_blob<float>({Precision::FP32, dims, Layout::ANY}, (float*)m.data);
 }
 
 void runIE(Target target, const std::string& xmlPath, const std::string& binPath,
@@ -154,32 +151,42 @@ void runIE(Target target, const std::string& xmlPath, const std::string& binPath
 
     CNNNetwork net = reader.getNetwork();
 
+    std::string device_name;
+
+#if defined(INF_ENGINE_RELEASE) && INF_ENGINE_VER_MAJOR_GT(2019010000)
+    Core ie;
+#else
     InferenceEnginePluginPtr enginePtr;
     InferencePlugin plugin;
+#endif
     ExecutableNetwork netExec;
     InferRequest infRequest;
+
     try
     {
-        auto dispatcher = InferenceEngine::PluginDispatcher({""});
         switch (target)
         {
             case DNN_TARGET_CPU:
-                enginePtr = dispatcher.getSuitablePlugin(TargetDevice::eCPU);
+                device_name = "CPU";
                 break;
             case DNN_TARGET_OPENCL:
             case DNN_TARGET_OPENCL_FP16:
-                enginePtr = dispatcher.getSuitablePlugin(TargetDevice::eGPU);
+                device_name = "GPU";
                 break;
             case DNN_TARGET_MYRIAD:
-                enginePtr = dispatcher.getSuitablePlugin(TargetDevice::eMYRIAD);
+                device_name = "MYRIAD";
                 break;
             case DNN_TARGET_FPGA:
-                enginePtr = dispatcher.getPluginByDevice("HETERO:FPGA,CPU");
+                device_name = "FPGA";
                 break;
             default:
                 CV_Error(Error::StsNotImplemented, "Unknown target");
         };
 
+#if defined(INF_ENGINE_RELEASE) && INF_ENGINE_VER_MAJOR_LE(2019010000)
+        auto dispatcher = InferenceEngine::PluginDispatcher({""});
+        enginePtr = dispatcher.getPluginByDevice(device_name);
+#endif
         if (target == DNN_TARGET_CPU || target == DNN_TARGET_FPGA)
         {
             std::string suffixes[] = {"_avx2", "_sse4", ""};
@@ -202,16 +209,23 @@ void runIE(Target target, const std::string& xmlPath, const std::string& binPath
                 try
                 {
                     IExtensionPtr extension = make_so_pointer<IExtension>(libName);
+#if defined(INF_ENGINE_RELEASE) && INF_ENGINE_VER_MAJOR_GT(2019010000)
+                    ie.AddExtension(extension, device_name);
+#else
                     enginePtr->AddExtension(extension, 0);
+#endif
                     break;
                 }
                 catch(...) {}
             }
             // Some of networks can work without a library of extra layers.
         }
+#if defined(INF_ENGINE_RELEASE) && INF_ENGINE_VER_MAJOR_GT(2019010000)
+        netExec = ie.LoadNetwork(net, device_name);
+#else
         plugin = InferencePlugin(enginePtr);
-
         netExec = plugin.LoadNetwork(net, {});
+#endif
         infRequest = netExec.CreateInferRequest();
     }
     catch (const std::exception& ex)
@@ -224,7 +238,7 @@ void runIE(Target target, const std::string& xmlPath, const std::string& binPath
     BlobMap inputBlobs;
     for (auto& it : net.getInputsInfo())
     {
-        genData(it.second->getDims(), inputsMap[it.first], inputBlobs[it.first]);
+        genData(it.second->getTensorDesc().getDims(), inputsMap[it.first], inputBlobs[it.first]);
     }
     infRequest.SetInput(inputBlobs);
 
@@ -233,7 +247,7 @@ void runIE(Target target, const std::string& xmlPath, const std::string& binPath
     BlobMap outputBlobs;
     for (auto& it : net.getOutputsInfo())
     {
-        genData(it.second->dims, outputsMap[it.first], outputBlobs[it.first]);
+        genData(it.second->getTensorDesc().getDims(), outputsMap[it.first], outputBlobs[it.first]);
     }
     infRequest.SetOutput(outputBlobs);
 

modules/dnn/test/test_misc.cpp

@@ -467,6 +467,42 @@ INSTANTIATE_TEST_CASE_P(/**/, Async, Combine(
   Values(CV_32F, CV_8U),
   testing::ValuesIn(getAvailableTargets(DNN_BACKEND_INFERENCE_ENGINE))
 ));
+
+typedef testing::TestWithParam<Target>  Test_Model_Optimizer;
+TEST_P(Test_Model_Optimizer, forward_two_nets)
+{
+    const int target = GetParam();
+
+    const std::string suffix = (target == DNN_TARGET_OPENCL_FP16 || target == DNN_TARGET_MYRIAD) ? "_fp16" : "";
+    const std::string& model = findDataFile("dnn/layers/layer_convolution" + suffix + ".bin");
+    const std::string& proto = findDataFile("dnn/layers/layer_convolution" + suffix + ".xml");
+
+    Net net0 = readNet(model, proto);
+    net0.setPreferableTarget(target);
+
+    Net net1 = readNet(model, proto);
+    net1.setPreferableTarget(target);
+
+    // Generate inputs.
+    int blobSize[] = {2, 6, 75, 113};
+    Mat input(4, &blobSize[0], CV_32F);
+    randu(input, 0, 255);
+
+    net0.setInput(input);
+    Mat ref0 = net0.forward().clone();
+
+    net1.setInput(input);
+    Mat ref1 = net1.forward();
+
+    net0.setInput(input);
+    Mat ref2 = net0.forward();
+
+    normAssert(ref0, ref2, 0, 0);
+}
+INSTANTIATE_TEST_CASE_P(/**/, Test_Model_Optimizer,
+  testing::ValuesIn(getAvailableTargets(DNN_BACKEND_INFERENCE_ENGINE))
+);
+
 #endif  // HAVE_INF_ENGINE
 
 }} // namespace