Update Intel's Inference Engine deep learning backend (#11587)

* Update Intel's Inference Engine deep learning backend

* Remove cpu_extension dependency

* Update Darknet accuracy tests

cmake/OpenCVDetectInferenceEngine.cmake

@@ -41,8 +41,7 @@ set(INF_ENGINE_INCLUDE_DIRS "${INF_ENGINE_ROOT_DIR}/include" CACHE PATH "Path to
 
 if(NOT INF_ENGINE_ROOT_DIR
     OR NOT EXISTS "${INF_ENGINE_ROOT_DIR}"
-    OR NOT EXISTS "${INF_ENGINE_INCLUDE_DIRS}"
-    OR NOT EXISTS "${INF_ENGINE_INCLUDE_DIRS}/inference_engine.hpp"
+    OR NOT EXISTS "${INF_ENGINE_ROOT_DIR}/include/inference_engine.hpp"
 )
     ie_fail()
 endif()
@@ -52,10 +51,7 @@ set(INF_ENGINE_LIBRARIES "")
 set(ie_lib_list inference_engine)
 
 link_directories(
-  ${INTEL_CVSDK_DIR}/external/mklml_lnx/lib
-  ${INTEL_CVSDK_DIR}/inference_engine/external/mklml_lnx/lib
   ${INTEL_CVSDK_DIR}/inference_engine/external/mkltiny_lnx/lib
-  ${INTEL_CVSDK_DIR}/external/cldnn/lib
   ${INTEL_CVSDK_DIR}/inference_engine/external/cldnn/lib
 )
 

modules/dnn/include/opencv2/dnn/dnn.hpp

@@ -81,7 +81,8 @@ CV__DNN_EXPERIMENTAL_NS_BEGIN
     {
         DNN_TARGET_CPU,
         DNN_TARGET_OPENCL,
-        DNN_TARGET_OPENCL_FP16
+        DNN_TARGET_OPENCL_FP16,
+        DNN_TARGET_MYRIAD
     };
 
     /** @brief This class provides all data needed to initialize layer.
@@ -700,13 +701,13 @@ CV__DNN_EXPERIMENTAL_NS_BEGIN
       *                  * `*.pb` (TensorFlow, https://www.tensorflow.org/)
       *                  * `*.t7` | `*.net` (Torch, http://torch.ch/)
       *                  * `*.weights` (Darknet, https://pjreddie.com/darknet/)
-      *                  * `*.bin` (DLDT, https://software.seek.intel.com/deep-learning-deployment)
+      *                  * `*.bin` (DLDT, https://software.intel.com/openvino-toolkit)
       * @param[in] config Text file contains network configuration. It could be a
       *                   file with the following extensions:
       *                  * `*.prototxt` (Caffe, http://caffe.berkeleyvision.org/)
       *                  * `*.pbtxt` (TensorFlow, https://www.tensorflow.org/)
       *                  * `*.cfg` (Darknet, https://pjreddie.com/darknet/)
-      *                  * `*.xml` (DLDT, https://software.seek.intel.com/deep-learning-deployment)
+      *                  * `*.xml` (DLDT, https://software.intel.com/openvino-toolkit)
       * @param[in] framework Explicit framework name tag to determine a format.
       * @returns Net object.
       *

modules/dnn/perf/perf_net.cpp

@@ -13,7 +13,7 @@
 namespace opencv_test {
 
 CV_ENUM(DNNBackend, DNN_BACKEND_DEFAULT, DNN_BACKEND_HALIDE, DNN_BACKEND_INFERENCE_ENGINE)
-CV_ENUM(DNNTarget, DNN_TARGET_CPU, DNN_TARGET_OPENCL, DNN_TARGET_OPENCL_FP16)
+CV_ENUM(DNNTarget, DNN_TARGET_CPU, DNN_TARGET_OPENCL, DNN_TARGET_OPENCL_FP16, DNN_TARGET_MYRIAD)
 
 class DNNTestNetwork : public ::perf::TestBaseWithParam< tuple<DNNBackend, DNNTarget> >
 {
@@ -29,6 +29,28 @@ public:
         target = (dnn::Target)(int)get<1>(GetParam());
     }
 
+    static bool checkMyriadTarget()
+    {
+#ifndef HAVE_INF_ENGINE
+        return false;
+#endif
+        cv::dnn::Net net;
+        cv::dnn::LayerParams lp;
+        net.addLayerToPrev("testLayer", "Identity", lp);
+        net.setPreferableBackend(cv::dnn::DNN_BACKEND_INFERENCE_ENGINE);
+        net.setPreferableTarget(cv::dnn::DNN_TARGET_MYRIAD);
+        net.setInput(cv::Mat::zeros(1, 1, CV_32FC1));
+        try
+        {
+            net.forward();
+        }
+        catch(...)
+        {
+            return false;
+        }
+        return true;
+    }
+
     void processNet(std::string weights, std::string proto, std::string halide_scheduler,
                     const Mat& input, const std::string& outputLayer = "")
     {
@@ -41,6 +63,13 @@ public:
                 throw cvtest::SkipTestException("OpenCL is not available/disabled in OpenCV");
             }
         }
+        if (backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_MYRIAD)
+        {
+            if (!checkMyriadTarget())
+            {
+                throw SkipTestException("Myriad is not available/disabled in OpenCV");
+            }
+        }
 
         randu(input, 0.0f, 1.0f);
 
@@ -87,8 +116,6 @@ public:
 
 PERF_TEST_P_(DNNTestNetwork, AlexNet)
 {
-    if (backend == DNN_BACKEND_INFERENCE_ENGINE && target != DNN_TARGET_CPU)
-        throw SkipTestException("");
     processNet("dnn/bvlc_alexnet.caffemodel", "dnn/bvlc_alexnet.prototxt",
             "alexnet.yml", Mat(cv::Size(227, 227), CV_32FC3));
 }
@@ -130,7 +157,6 @@ PERF_TEST_P_(DNNTestNetwork, ENet)
 
 PERF_TEST_P_(DNNTestNetwork, SSD)
 {
-    if (backend == DNN_BACKEND_INFERENCE_ENGINE) throw SkipTestException("");
     processNet("dnn/VGG_ILSVRC2016_SSD_300x300_iter_440000.caffemodel", "dnn/ssd_vgg16.prototxt", "disabled",
             Mat(cv::Size(300, 300), CV_32FC3));
 }
@@ -146,18 +172,17 @@ PERF_TEST_P_(DNNTestNetwork, OpenFace)
 
 PERF_TEST_P_(DNNTestNetwork, MobileNet_SSD_Caffe)
 {
-    if (backend == DNN_BACKEND_HALIDE ||
-        backend == DNN_BACKEND_INFERENCE_ENGINE && target != DNN_TARGET_CPU)
+    if (backend == DNN_BACKEND_HALIDE)
         throw SkipTestException("");
     processNet("dnn/MobileNetSSD_deploy.caffemodel", "dnn/MobileNetSSD_deploy.prototxt", "",
             Mat(cv::Size(300, 300), CV_32FC3));
 }
 
+// TODO: update MobileNet model.
 PERF_TEST_P_(DNNTestNetwork, MobileNet_SSD_TensorFlow)
 {
-    if (backend == DNN_BACKEND_DEFAULT && target == DNN_TARGET_OPENCL ||
-        backend == DNN_BACKEND_HALIDE ||
-        backend == DNN_BACKEND_INFERENCE_ENGINE && target != DNN_TARGET_CPU)
+    if (backend == DNN_BACKEND_HALIDE ||
+        backend == DNN_BACKEND_INFERENCE_ENGINE)
         throw SkipTestException("");
     processNet("dnn/ssd_mobilenet_v1_coco.pb", "ssd_mobilenet_v1_coco.pbtxt", "",
             Mat(cv::Size(300, 300), CV_32FC3));
@@ -166,7 +191,8 @@ PERF_TEST_P_(DNNTestNetwork, MobileNet_SSD_TensorFlow)
 PERF_TEST_P_(DNNTestNetwork, DenseNet_121)
 {
     if (backend == DNN_BACKEND_HALIDE ||
-        backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_OPENCL_FP16)
+        backend == DNN_BACKEND_INFERENCE_ENGINE && (target == DNN_TARGET_OPENCL_FP16 ||
+                                                    target == DNN_TARGET_MYRIAD))
         throw SkipTestException("");
     processNet("dnn/DenseNet_121.caffemodel", "dnn/DenseNet_121.prototxt", "",
                Mat(cv::Size(224, 224), CV_32FC3));
@@ -174,21 +200,27 @@ PERF_TEST_P_(DNNTestNetwork, DenseNet_121)
 
 PERF_TEST_P_(DNNTestNetwork, OpenPose_pose_coco)
 {
-    if (backend == DNN_BACKEND_HALIDE) throw SkipTestException("");
+    if (backend == DNN_BACKEND_HALIDE ||
+        backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_MYRIAD)
+        throw SkipTestException("");
     processNet("dnn/openpose_pose_coco.caffemodel", "dnn/openpose_pose_coco.prototxt", "",
                Mat(cv::Size(368, 368), CV_32FC3));
 }
 
 PERF_TEST_P_(DNNTestNetwork, OpenPose_pose_mpi)
 {
-    if (backend == DNN_BACKEND_HALIDE) throw SkipTestException("");
+    if (backend == DNN_BACKEND_HALIDE ||
+        backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_MYRIAD)
+        throw SkipTestException("");
     processNet("dnn/openpose_pose_mpi.caffemodel", "dnn/openpose_pose_mpi.prototxt", "",
                Mat(cv::Size(368, 368), CV_32FC3));
 }
 
 PERF_TEST_P_(DNNTestNetwork, OpenPose_pose_mpi_faster_4_stages)
 {
-    if (backend == DNN_BACKEND_HALIDE) throw SkipTestException("");
+    if (backend == DNN_BACKEND_HALIDE ||
+        backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_MYRIAD)
+        throw SkipTestException("");
     // The same .caffemodel but modified .prototxt
     // See https://github.com/CMU-Perceptual-Computing-Lab/openpose/blob/master/src/openpose/pose/poseParameters.cpp
     processNet("dnn/openpose_pose_mpi.caffemodel", "dnn/openpose_pose_mpi_faster_4_stages.prototxt", "",
@@ -197,8 +229,7 @@ PERF_TEST_P_(DNNTestNetwork, OpenPose_pose_mpi_faster_4_stages)
 
 PERF_TEST_P_(DNNTestNetwork, opencv_face_detector)
 {
-    if (backend == DNN_BACKEND_HALIDE ||
-        backend == DNN_BACKEND_INFERENCE_ENGINE && target != DNN_TARGET_CPU)
+    if (backend == DNN_BACKEND_HALIDE)
         throw SkipTestException("");
     processNet("dnn/opencv_face_detector.caffemodel", "dnn/opencv_face_detector.prototxt", "",
                Mat(cv::Size(300, 300), CV_32FC3));
@@ -207,7 +238,8 @@ PERF_TEST_P_(DNNTestNetwork, opencv_face_detector)
 PERF_TEST_P_(DNNTestNetwork, Inception_v2_SSD_TensorFlow)
 {
     if (backend == DNN_BACKEND_HALIDE ||
-        backend == DNN_BACKEND_INFERENCE_ENGINE && target != DNN_TARGET_CPU)
+        (backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_OPENCL) ||
+        (backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_OPENCL_FP16))
         throw SkipTestException("");
     processNet("dnn/ssd_inception_v2_coco_2017_11_17.pb", "ssd_inception_v2_coco_2017_11_17.pbtxt", "",
             Mat(cv::Size(300, 300), CV_32FC3));
@@ -215,7 +247,8 @@ PERF_TEST_P_(DNNTestNetwork, Inception_v2_SSD_TensorFlow)
 
 PERF_TEST_P_(DNNTestNetwork, YOLOv3)
 {
-    if (backend != DNN_BACKEND_DEFAULT)
+    if (backend == DNN_BACKEND_HALIDE ||
+        backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_MYRIAD)
         throw SkipTestException("");
     Mat sample = imread(findDataFile("dnn/dog416.png", false));
     Mat inp;
@@ -232,6 +265,7 @@ const tuple<DNNBackend, DNNTarget> testCases[] = {
     tuple<DNNBackend, DNNTarget>(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_CPU),
     tuple<DNNBackend, DNNTarget>(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_OPENCL),
     tuple<DNNBackend, DNNTarget>(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_OPENCL_FP16),
+    tuple<DNNBackend, DNNTarget>(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_MYRIAD),
 #endif
     tuple<DNNBackend, DNNTarget>(DNN_BACKEND_DEFAULT, DNN_TARGET_CPU),
     tuple<DNNBackend, DNNTarget>(DNN_BACKEND_DEFAULT, DNN_TARGET_OPENCL),

modules/dnn/src/darknet/darknet_io.cpp

@@ -288,7 +288,7 @@ namespace cv {
                     permute_params.set("order", paramOrder);
 
                     darknet::LayerParameter lp;
-                    std::string layer_name = cv::format("premute_%d", layer_id);
+                    std::string layer_name = cv::format("permute_%d", layer_id);
                     lp.layer_name = layer_name;
                     lp.layer_type = permute_params.type;
                     lp.layerParams = permute_params;

modules/dnn/src/dnn.cpp

@@ -1182,7 +1182,9 @@ struct Net::Impl
         for (it = layers.begin(); it != layers.end(); ++it)
         {
             LayerData &ld = it->second;
-            bool fused = ld.skip && ld.id != 0;
+            if (ld.id == 0)
+                continue;
+            bool fused = ld.skip;
 
             Ptr<Layer> layer = ld.layerInstance;
             if (!layer->supportBackend(preferableBackend))
@@ -1259,7 +1261,7 @@ struct Net::Impl
             CV_Assert(!ieNode.empty());
             ieNode->net = net;
 
-            if (preferableTarget == DNN_TARGET_OPENCL_FP16 && !fused)
+            if ((preferableTarget == DNN_TARGET_OPENCL_FP16 || preferableTarget == DNN_TARGET_MYRIAD) && !fused)
             {
                 ieNode->layer->precision = InferenceEngine::Precision::FP16;
                 auto weightableLayer = std::dynamic_pointer_cast<InferenceEngine::WeightableLayer>(ieNode->layer);

modules/dnn/src/layers/elementwise_layers.cpp

@@ -117,7 +117,7 @@ public:
     {
         return backendId == DNN_BACKEND_DEFAULT ||
                backendId == DNN_BACKEND_HALIDE && haveHalide() ||
-               backendId == DNN_BACKEND_INFERENCE_ENGINE && haveInfEngine() && this->type != "Sigmoid";
+               backendId == DNN_BACKEND_INFERENCE_ENGINE && haveInfEngine();
     }
 
     virtual Ptr<BackendNode> tryAttach(const Ptr<BackendNode>& node) CV_OVERRIDE
@@ -334,6 +334,7 @@ struct ReLUFunctor
         lp.type = "ReLU";
         std::shared_ptr<InferenceEngine::ReLULayer> ieLayer(new InferenceEngine::ReLULayer(lp));
         ieLayer->negative_slope = slope;
+        ieLayer->params["negative_slope"] = format("%f", slope);
         return ieLayer;
     }
 #endif  // HAVE_INF_ENGINE
@@ -431,6 +432,8 @@ struct ReLU6Functor
         std::shared_ptr<InferenceEngine::ClampLayer> ieLayer(new InferenceEngine::ClampLayer(lp));
         ieLayer->min_value = minValue;
         ieLayer->max_value = maxValue;
+        ieLayer->params["min"] = format("%f", minValue);
+        ieLayer->params["max"] = format("%f", maxValue);
         return ieLayer;
     }
 #endif  // HAVE_INF_ENGINE
@@ -556,8 +559,9 @@ struct SigmoidFunctor
 #ifdef HAVE_INF_ENGINE
     InferenceEngine::CNNLayerPtr initInfEngine(InferenceEngine::LayerParams& lp)
     {
-        CV_Error(Error::StsNotImplemented, "Sigmoid");
-        return InferenceEngine::CNNLayerPtr();
+        lp.type = "Sigmoid";
+        std::shared_ptr<InferenceEngine::CNNLayer> ieLayer(new InferenceEngine::CNNLayer(lp));
+        return ieLayer;
     }
 #endif  // HAVE_INF_ENGINE
 

modules/dnn/src/layers/prior_box_layer.cpp

@@ -271,7 +271,7 @@ public:
     virtual bool supportBackend(int backendId) CV_OVERRIDE
     {
         return backendId == DNN_BACKEND_DEFAULT ||
-               backendId == DNN_BACKEND_INFERENCE_ENGINE && haveInfEngine() && !_explicitSizes;
+               backendId == DNN_BACKEND_INFERENCE_ENGINE && haveInfEngine();
     }
 
     bool getMemoryShapes(const std::vector<MatShape> &inputs,
@@ -484,18 +484,33 @@ public:
 #ifdef HAVE_INF_ENGINE
         InferenceEngine::LayerParams lp;
         lp.name = name;
-        lp.type = "PriorBox";
+        lp.type = _explicitSizes ? "PriorBoxClustered" : "PriorBox";
         lp.precision = InferenceEngine::Precision::FP32;
         std::shared_ptr<InferenceEngine::CNNLayer> ieLayer(new InferenceEngine::CNNLayer(lp));
 
-        ieLayer->params["min_size"] = format("%f", _minSize);
-        ieLayer->params["max_size"] = _maxSize > 0 ? format("%f", _maxSize) : "";
-
-        if (!_aspectRatios.empty())
+        if (_explicitSizes)
+        {
+            CV_Assert(!_boxWidths.empty(), !_boxHeights.empty(),
+                      _boxWidths.size() == _boxHeights.size());
+            ieLayer->params["width"] = format("%f", _boxWidths[0]);
+            ieLayer->params["height"] = format("%f", _boxHeights[0]);
+            for (int i = 1; i < _boxWidths.size(); ++i)
+            {
+                ieLayer->params["width"] += format(",%f", _boxWidths[i]);
+                ieLayer->params["height"] += format(",%f", _boxHeights[i]);
+            }
+        }
+        else
         {
-            ieLayer->params["aspect_ratio"] = format("%f", _aspectRatios[0]);
-            for (int i = 1; i < _aspectRatios.size(); ++i)
-                ieLayer->params["aspect_ratio"] += format(",%f", _aspectRatios[i]);
+            ieLayer->params["min_size"] = format("%f", _minSize);
+            ieLayer->params["max_size"] = _maxSize > 0 ? format("%f", _maxSize) : "";
+
+            if (!_aspectRatios.empty())
+            {
+                ieLayer->params["aspect_ratio"] = format("%f", _aspectRatios[0]);
+                for (int i = 1; i < _aspectRatios.size(); ++i)
+                    ieLayer->params["aspect_ratio"] += format(",%f", _aspectRatios[i]);
+            }
         }
 
         ieLayer->params["flip"] = "0";  // We already flipped aspect ratios.

modules/dnn/src/layers/region_layer.cpp

@@ -95,11 +95,6 @@ public:
         return false;
     }
 
-    virtual bool supportBackend(int backendId) CV_OVERRIDE
-    {
-        return backendId == DNN_BACKEND_DEFAULT;
-    }
-
     float logistic_activate(float x) { return 1.F / (1.F + exp(-x)); }
 
     void softmax_activate(const float* input, const int n, const float temp, float* output)

modules/dnn/src/layers/resize_nearest_neighbor_layer.cpp

@@ -6,6 +6,7 @@
 // Third party copyrights are property of their respective owners.
 #include "../precomp.hpp"
 #include "layers_common.hpp"
+#include "../op_inf_engine.hpp"
 #include <opencv2/imgproc.hpp>
 
 namespace cv { namespace dnn {
@@ -39,6 +40,12 @@ public:
         return (outputs[0][2] == inputs[0][2]) && (outputs[0][3] == inputs[0][3]);
     }
 
+    virtual bool supportBackend(int backendId) CV_OVERRIDE
+    {
+        return backendId == DNN_BACKEND_DEFAULT ||
+               backendId == DNN_BACKEND_INFERENCE_ENGINE && haveInfEngine();
+    }
+
     virtual void finalize(const std::vector<Mat*>& inputs, std::vector<Mat> &outputs) CV_OVERRIDE
     {
         if (!outWidth && !outHeight)
@@ -75,6 +82,26 @@ public:
             }
         }
     }
+
+    virtual Ptr<BackendNode> initInfEngine(const std::vector<Ptr<BackendWrapper> >&) CV_OVERRIDE
+    {
+#ifdef HAVE_INF_ENGINE
+        InferenceEngine::LayerParams lp;
+        lp.name = name;
+        lp.type = "Resample";
+        lp.precision = InferenceEngine::Precision::FP32;
+
+        std::shared_ptr<InferenceEngine::CNNLayer> ieLayer(new InferenceEngine::CNNLayer(lp));
+        ieLayer->params["type"] = "caffe.ResampleParameter.NEAREST";
+        ieLayer->params["antialias"] = "0";
+        ieLayer->params["width"] = cv::format("%d", outWidth);
+        ieLayer->params["height"] = cv::format("%d", outHeight);
+
+        return Ptr<BackendNode>(new InfEngineBackendNode(ieLayer));
+#endif  // HAVE_INF_ENGINE
+        return Ptr<BackendNode>();
+    }
+
 private:
     int outWidth, outHeight, zoomFactor;
     bool alignCorners;

modules/dnn/src/op_inf_engine.cpp

@@ -18,11 +18,6 @@ namespace cv { namespace dnn {
 
 #ifdef HAVE_INF_ENGINE
 
-static int infEngineVersion()
-{
-    return std::atoi(InferenceEngine::GetInferenceEngineVersion()->buildNumber);
-}
-
 InfEngineBackendNode::InfEngineBackendNode(const InferenceEngine::CNNLayerPtr& _layer)
     : BackendNode(DNN_BACKEND_INFERENCE_ENGINE), layer(_layer) {}
 
@@ -59,27 +54,23 @@ infEngineWrappers(const std::vector<Ptr<BackendWrapper> >& ptrs)
     return wrappers;
 }
 
+static InferenceEngine::Layout estimateLayout(const Mat& m)
+{
+    if (m.dims == 4)
+        return InferenceEngine::Layout::NCHW;
+    else if (m.dims == 2)
+        return InferenceEngine::Layout::NC;
+    else
+        return InferenceEngine::Layout::ANY;
+}
+
 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());
-    if (infEngineVersion() > 5855)
-    {
-        InferenceEngine::Layout l = InferenceEngine::Layout::ANY;
-        if (m.dims == 4)
-            l = InferenceEngine::Layout::NCHW;
-        else if (m.dims == 2)
-            l = InferenceEngine::Layout::NC;
-        return InferenceEngine::DataPtr(
-            new InferenceEngine::Data(name, reversedShape, InferenceEngine::Precision::FP32, l)
-        );
-    }
-    else
-    {
-        return InferenceEngine::DataPtr(
-            new InferenceEngine::Data(name, reversedShape, InferenceEngine::Precision::FP32)
-        );
-    }
+    return InferenceEngine::DataPtr(
+        new InferenceEngine::Data(name, reversedShape, InferenceEngine::Precision::FP32, estimateLayout(m))
+    );
 }
 
 InferenceEngine::TBlob<float>::Ptr wrapToInfEngineBlob(const Mat& m, const std::vector<size_t>& shape,
@@ -108,7 +99,7 @@ InfEngineBackendWrapper::InfEngineBackendWrapper(int targetId, const cv::Mat& m)
     : BackendWrapper(DNN_BACKEND_INFERENCE_ENGINE, targetId)
 {
     dataPtr = wrapToInfEngineDataNode(m);
-    blob = wrapToInfEngineBlob(m);
+    blob = wrapToInfEngineBlob(m, estimateLayout(m));
 }
 
 InfEngineBackendWrapper::~InfEngineBackendWrapper()
@@ -252,7 +243,8 @@ InfEngineBackendNet::getLayerByName(const char *layerName, InferenceEngine::CNNL
 void InfEngineBackendNet::setTargetDevice(InferenceEngine::TargetDevice device) noexcept
 {
     if (device != InferenceEngine::TargetDevice::eCPU &&
-        device != InferenceEngine::TargetDevice::eGPU)
+        device != InferenceEngine::TargetDevice::eGPU &&
+        device != InferenceEngine::TargetDevice::eMYRIAD)
         CV_Error(Error::StsNotImplemented, "");
     targetDevice = device;
 }
@@ -352,6 +344,11 @@ void InfEngineBackendNet::init(int targetId)
     case DNN_TARGET_CPU: setTargetDevice(InferenceEngine::TargetDevice::eCPU); break;
     case DNN_TARGET_OPENCL_FP16: setPrecision(InferenceEngine::Precision::FP16);  // Fallback to the next.
     case DNN_TARGET_OPENCL: setTargetDevice(InferenceEngine::TargetDevice::eGPU); break;
+    case DNN_TARGET_MYRIAD:
+    {
+        setPrecision(InferenceEngine::Precision::FP16);
+        setTargetDevice(InferenceEngine::TargetDevice::eMYRIAD); break;
+    }
     default:
         CV_Error(Error::StsError, format("Unknown target identifier: %d", targetId));
     }
@@ -368,7 +365,7 @@ void InfEngineBackendNet::initPlugin(InferenceEngine::ICNNNetwork& net)
     InferenceEngine::ResponseDesc resp;
 
     plugin = InferenceEngine::PluginDispatcher({""}).getSuitablePlugin(targetDevice);
-    if (infEngineVersion() > 5855 && targetDevice == InferenceEngine::TargetDevice::eCPU)
+    if (targetDevice == InferenceEngine::TargetDevice::eCPU)
     {
 #ifdef _WIN32
         InferenceEngine::IExtensionPtr extension =

modules/dnn/test/test_backends.cpp

@@ -49,7 +49,14 @@ public:
                 throw SkipTestException("OpenCL is not available/disabled in OpenCV");
             }
         }
-        if (target == DNN_TARGET_OPENCL_FP16)
+        if (backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_MYRIAD)
+        {
+            if (!checkMyriadTarget())
+            {
+                throw SkipTestException("Myriad is not available/disabled in OpenCV");
+            }
+        }
+        if (target == DNN_TARGET_OPENCL_FP16 || target == DNN_TARGET_MYRIAD)
         {
             l1 = l1 == 0.0 ? 4e-3 : l1;
             lInf = lInf == 0.0 ? 2e-2 : lInf;
@@ -80,10 +87,7 @@ public:
         }
         Mat out = net.forward(outputLayer).clone();
 
-        if (outputLayer == "detection_out")
-            normAssertDetections(outDefault, out, "First run", 0.2, l1, lInf);
-        else
-            normAssert(outDefault, out, "First run", l1, lInf);
+        check(outDefault, out, outputLayer, l1, lInf, "First run");
 
         // Test 2: change input.
         float* inpData = (float*)inp.data;
@@ -97,18 +101,33 @@ public:
         net.setInput(inp);
         outDefault = netDefault.forward(outputLayer).clone();
         out = net.forward(outputLayer).clone();
+        check(outDefault, out, outputLayer, l1, lInf, "Second run");
+    }
 
+    void check(Mat& ref, Mat& out, const std::string& outputLayer, double l1, double lInf, const char* msg)
+    {
         if (outputLayer == "detection_out")
-            normAssertDetections(outDefault, out, "Second run", 0.2, l1, lInf);
+        {
+            if (backend == DNN_BACKEND_INFERENCE_ENGINE)
+            {
+                // Inference Engine produces detections terminated by a row which starts from -1.
+                out = out.reshape(1, out.total() / 7);
+                int numDetections = 0;
+                while (numDetections < out.rows && out.at<float>(numDetections, 0) != -1)
+                {
+                    numDetections += 1;
+                }
+                out = out.rowRange(0, numDetections);
+            }
+            normAssertDetections(ref, out, msg, 0.2, l1, lInf);
+        }
         else
-            normAssert(outDefault, out, "Second run", l1, lInf);
+            normAssert(ref, out, msg, l1, lInf);
     }
 };
 
 TEST_P(DNNTestNetwork, AlexNet)
 {
-    if (backend == DNN_BACKEND_INFERENCE_ENGINE && target != DNN_TARGET_CPU)
-        throw SkipTestException("");
     processNet("dnn/bvlc_alexnet.caffemodel", "dnn/bvlc_alexnet.prototxt",
                Size(227, 227), "prob",
                target == DNN_TARGET_OPENCL ? "dnn/halide_scheduler_opencl_alexnet.yml" :
@@ -158,8 +177,7 @@ TEST_P(DNNTestNetwork, ENet)
 
 TEST_P(DNNTestNetwork, MobileNet_SSD_Caffe)
 {
-    if (backend == DNN_BACKEND_HALIDE ||
-        backend == DNN_BACKEND_INFERENCE_ENGINE && target != DNN_TARGET_CPU)
+    if (backend == DNN_BACKEND_HALIDE)
         throw SkipTestException("");
     Mat sample = imread(findDataFile("dnn/street.png", false));
     Mat inp = blobFromImage(sample, 1.0f / 127.5, Size(300, 300), Scalar(127.5, 127.5, 127.5), false);
@@ -170,10 +188,11 @@ TEST_P(DNNTestNetwork, MobileNet_SSD_Caffe)
                inp, "detection_out", "", l1, lInf);
 }
 
+// TODO: update MobileNet model.
 TEST_P(DNNTestNetwork, MobileNet_SSD_TensorFlow)
 {
     if (backend == DNN_BACKEND_HALIDE ||
-        backend == DNN_BACKEND_INFERENCE_ENGINE && target != DNN_TARGET_CPU)
+        backend == DNN_BACKEND_INFERENCE_ENGINE)
         throw SkipTestException("");
     Mat sample = imread(findDataFile("dnn/street.png", false));
     Mat inp = blobFromImage(sample, 1.0f / 127.5, Size(300, 300), Scalar(127.5, 127.5, 127.5), false);
@@ -185,31 +204,38 @@ TEST_P(DNNTestNetwork, MobileNet_SSD_TensorFlow)
 
 TEST_P(DNNTestNetwork, SSD_VGG16)
 {
-    if ((backend == DNN_BACKEND_DEFAULT && target == DNN_TARGET_OPENCL_FP16) ||
-        (backend == DNN_BACKEND_HALIDE && target == DNN_TARGET_CPU) ||
-        (backend == DNN_BACKEND_INFERENCE_ENGINE && target != DNN_TARGET_CPU))
+    if (backend == DNN_BACKEND_HALIDE && target == DNN_TARGET_CPU)
         throw SkipTestException("");
+    double scoreThreshold = (target == DNN_TARGET_OPENCL_FP16 || target == DNN_TARGET_MYRIAD) ? 0.0252 : 0.0;
+    Mat sample = imread(findDataFile("dnn/street.png", false));
+    Mat inp = blobFromImage(sample, 1.0f, Size(300, 300), Scalar(), false);
     processNet("dnn/VGG_ILSVRC2016_SSD_300x300_iter_440000.caffemodel",
-               "dnn/ssd_vgg16.prototxt", Size(300, 300), "detection_out");
+               "dnn/ssd_vgg16.prototxt", inp, "detection_out", "", scoreThreshold);
 }
 
 TEST_P(DNNTestNetwork, OpenPose_pose_coco)
 {
-    if (backend == DNN_BACKEND_HALIDE) throw SkipTestException("");
+    if (backend == DNN_BACKEND_HALIDE ||
+        backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_MYRIAD)
+        throw SkipTestException("");
     processNet("dnn/openpose_pose_coco.caffemodel", "dnn/openpose_pose_coco.prototxt",
                Size(368, 368));
 }
 
 TEST_P(DNNTestNetwork, OpenPose_pose_mpi)
 {
-    if (backend == DNN_BACKEND_HALIDE) throw SkipTestException("");
+    if (backend == DNN_BACKEND_HALIDE ||
+        backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_MYRIAD)
+        throw SkipTestException("");
     processNet("dnn/openpose_pose_mpi.caffemodel", "dnn/openpose_pose_mpi.prototxt",
                Size(368, 368));
 }
 
 TEST_P(DNNTestNetwork, OpenPose_pose_mpi_faster_4_stages)
 {
-    if (backend == DNN_BACKEND_HALIDE) throw SkipTestException("");
+    if (backend == DNN_BACKEND_HALIDE ||
+        backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_MYRIAD)
+        throw SkipTestException("");
     // The same .caffemodel but modified .prototxt
     // See https://github.com/CMU-Perceptual-Computing-Lab/openpose/blob/master/src/openpose/pose/poseParameters.cpp
     processNet("dnn/openpose_pose_mpi.caffemodel", "dnn/openpose_pose_mpi_faster_4_stages.prototxt",
@@ -226,11 +252,13 @@ TEST_P(DNNTestNetwork, OpenFace)
 
 TEST_P(DNNTestNetwork, opencv_face_detector)
 {
-    if (backend == DNN_BACKEND_HALIDE ||
-        backend == DNN_BACKEND_INFERENCE_ENGINE && target != DNN_TARGET_CPU)
+    if (backend == DNN_BACKEND_HALIDE)
         throw SkipTestException("");
+    Size inpSize;
+    if (backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_MYRIAD)
+        inpSize = Size(300, 300);
     Mat img = imread(findDataFile("gpu/lbpcascade/er.png", false));
-    Mat inp = blobFromImage(img, 1.0, Size(), Scalar(104.0, 177.0, 123.0), false, false);
+    Mat inp = blobFromImage(img, 1.0, inpSize, Scalar(104.0, 177.0, 123.0), false, false);
     processNet("dnn/opencv_face_detector.caffemodel", "dnn/opencv_face_detector.prototxt",
                inp, "detection_out");
 }
@@ -238,12 +266,13 @@ TEST_P(DNNTestNetwork, opencv_face_detector)
 TEST_P(DNNTestNetwork, Inception_v2_SSD_TensorFlow)
 {
     if (backend == DNN_BACKEND_HALIDE ||
-        backend == DNN_BACKEND_INFERENCE_ENGINE && target != DNN_TARGET_CPU)
+        (backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_OPENCL) ||
+        (backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_OPENCL_FP16))
         throw SkipTestException("");
     Mat sample = imread(findDataFile("dnn/street.png", false));
     Mat inp = blobFromImage(sample, 1.0f / 127.5, Size(300, 300), Scalar(127.5, 127.5, 127.5), false);
-    float l1 = (backend == DNN_BACKEND_DEFAULT && target == DNN_TARGET_OPENCL_FP16) ? 0.008 : 0.0;
-    float lInf = (backend == DNN_BACKEND_DEFAULT && target == DNN_TARGET_OPENCL_FP16) ? 0.07 : 0.0;
+    float l1 = (target == DNN_TARGET_OPENCL_FP16 || target == DNN_TARGET_MYRIAD) ? 0.008 : 0.0;
+    float lInf = (target == DNN_TARGET_OPENCL_FP16 || target == DNN_TARGET_MYRIAD) ? 0.07 : 0.0;
     processNet("dnn/ssd_inception_v2_coco_2017_11_17.pb", "dnn/ssd_inception_v2_coco_2017_11_17.pbtxt",
                inp, "detection_out", "", l1, lInf);
 }
@@ -252,7 +281,8 @@ TEST_P(DNNTestNetwork, DenseNet_121)
 {
     if ((backend == DNN_BACKEND_HALIDE) ||
         (backend == DNN_BACKEND_DEFAULT && target == DNN_TARGET_OPENCL_FP16) ||
-        (backend == DNN_BACKEND_INFERENCE_ENGINE && target == DNN_TARGET_OPENCL_FP16))
+        (backend == DNN_BACKEND_INFERENCE_ENGINE && (target == DNN_TARGET_OPENCL_FP16 ||
+                                                     target == DNN_TARGET_MYRIAD)))
         throw SkipTestException("");
     processNet("dnn/DenseNet_121.caffemodel", "dnn/DenseNet_121.prototxt", Size(224, 224), "", "caffe");
 }
@@ -266,6 +296,7 @@ const tuple<DNNBackend, DNNTarget> testCases[] = {
     tuple<DNNBackend, DNNTarget>(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_CPU),
     tuple<DNNBackend, DNNTarget>(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_OPENCL),
     tuple<DNNBackend, DNNTarget>(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_OPENCL_FP16),
+    tuple<DNNBackend, DNNTarget>(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_MYRIAD),
 #endif
     tuple<DNNBackend, DNNTarget>(DNN_BACKEND_DEFAULT, DNN_TARGET_OPENCL),
     tuple<DNNBackend, DNNTarget>(DNN_BACKEND_DEFAULT, DNN_TARGET_OPENCL_FP16)

modules/dnn/test/test_common.hpp

@@ -147,6 +147,28 @@ inline void normAssertDetections(cv::Mat ref, cv::Mat out, const char *comment =
                          testBoxes, comment, confThreshold, scores_diff, boxes_iou_diff);
 }
 
+inline bool checkMyriadTarget()
+{
+#ifndef HAVE_INF_ENGINE
+    return false;
+#endif
+    cv::dnn::Net net;
+    cv::dnn::LayerParams lp;
+    net.addLayerToPrev("testLayer", "Identity", lp);
+    net.setPreferableBackend(cv::dnn::DNN_BACKEND_INFERENCE_ENGINE);
+    net.setPreferableTarget(cv::dnn::DNN_TARGET_MYRIAD);
+    net.setInput(cv::Mat::zeros(1, 1, CV_32FC1));
+    try
+    {
+        net.forward();
+    }
+    catch(...)
+    {
+        return false;
+    }
+    return true;
+}
+
 inline bool readFileInMemory(const std::string& filename, std::string& content)
 {
     std::ios::openmode mode = std::ios::in | std::ios::binary;

modules/dnn/test/test_darknet_importer.cpp

@@ -71,13 +71,31 @@ static void testDarknetModel(const std::string& cfg, const std::string& weights,
                              const std::vector<int>& refClassIds,
                              const std::vector<float>& refConfidences,
                              const std::vector<Rect2d>& refBoxes,
-                             int targetId, float confThreshold = 0.24)
+                             int backendId, int targetId, float scoreDiff = 0.0,
+                             float iouDiff = 0.0, float confThreshold = 0.24)
 {
+    if (backendId == DNN_BACKEND_DEFAULT && targetId == DNN_TARGET_OPENCL)
+    {
+  #ifdef HAVE_OPENCL
+        if (!cv::ocl::useOpenCL())
+  #endif
+        {
+            throw SkipTestException("OpenCL is not available/disabled in OpenCV");
+        }
+    }
+    if (backendId == DNN_BACKEND_INFERENCE_ENGINE && targetId == DNN_TARGET_MYRIAD)
+    {
+        if (!checkMyriadTarget())
+        {
+            throw SkipTestException("Myriad is not available/disabled in OpenCV");
+        }
+    }
     Mat sample = imread(_tf("dog416.png"));
     Mat inp = blobFromImage(sample, 1.0/255, Size(416, 416), Scalar(), true, false);
 
     Net net = readNet(findDataFile("dnn/" + cfg, false),
                       findDataFile("dnn/" + weights, false));
+    net.setPreferableBackend(backendId);
     net.setPreferableTarget(targetId);
     net.setInput(inp);
     std::vector<Mat> outs;
@@ -108,14 +126,17 @@ static void testDarknetModel(const std::string& cfg, const std::string& weights,
         }
     }
     normAssertDetections(refClassIds, refConfidences, refBoxes, classIds,
-                         confidences, boxes, "", confThreshold, 8e-5, 3e-5);
+                         confidences, boxes, "", confThreshold, scoreDiff, iouDiff);
 }
 
-typedef testing::TestWithParam<DNNTarget> Test_Darknet_nets;
+typedef testing::TestWithParam<tuple<DNNBackend, DNNTarget> > Test_Darknet_nets;
 
 TEST_P(Test_Darknet_nets, YoloVoc)
 {
-    int targetId = GetParam();
+    int backendId = get<0>(GetParam());
+    int targetId = get<1>(GetParam());
+    if (backendId == DNN_BACKEND_INFERENCE_ENGINE && targetId == DNN_TARGET_MYRIAD)
+        throw SkipTestException("");
     std::vector<cv::String> outNames(1, "detection_out");
 
     std::vector<int> classIds(3);
@@ -124,26 +145,34 @@ TEST_P(Test_Darknet_nets, YoloVoc)
     classIds[0] = 6;  confidences[0] = 0.750469f; boxes[0] = Rect2d(0.577374, 0.127391, 0.325575, 0.173418);  // a car
     classIds[1] = 1;  confidences[1] = 0.780879f; boxes[1] = Rect2d(0.270762, 0.264102, 0.461713, 0.48131); // a bycicle
     classIds[2] = 11; confidences[2] = 0.901615f; boxes[2] = Rect2d(0.1386, 0.338509, 0.282737, 0.60028);  // a dog
+    double scoreDiff = (targetId == DNN_TARGET_OPENCL_FP16 || targetId == DNN_TARGET_MYRIAD) ? 7e-3 : 8e-5;
+    double iouDiff = (targetId == DNN_TARGET_OPENCL_FP16 || targetId == DNN_TARGET_MYRIAD) ? 0.013 : 3e-5;
     testDarknetModel("yolo-voc.cfg", "yolo-voc.weights", outNames,
-                     classIds, confidences, boxes, targetId);
+                     classIds, confidences, boxes, backendId, targetId, scoreDiff, iouDiff);
 }
 
 TEST_P(Test_Darknet_nets, TinyYoloVoc)
 {
-    int targetId = GetParam();
+    int backendId = get<0>(GetParam());
+    int targetId = get<1>(GetParam());
     std::vector<cv::String> outNames(1, "detection_out");
     std::vector<int> classIds(2);
     std::vector<float> confidences(2);
     std::vector<Rect2d> boxes(2);
     classIds[0] = 6;  confidences[0] = 0.761967f; boxes[0] = Rect2d(0.579042, 0.159161, 0.31544, 0.160779);  // a car
     classIds[1] = 11; confidences[1] = 0.780595f; boxes[1] = Rect2d(0.129696, 0.386467, 0.315579, 0.534527);  // a dog
+    double scoreDiff = (targetId == DNN_TARGET_OPENCL_FP16 || targetId == DNN_TARGET_MYRIAD) ? 8e-3 : 8e-5;
+    double iouDiff = (targetId == DNN_TARGET_OPENCL_FP16 || targetId == DNN_TARGET_MYRIAD) ? 8e-3 : 3e-5;
     testDarknetModel("tiny-yolo-voc.cfg", "tiny-yolo-voc.weights", outNames,
-                     classIds, confidences, boxes, targetId);
+                     classIds, confidences, boxes, backendId, targetId, scoreDiff, iouDiff);
 }
 
 TEST_P(Test_Darknet_nets, YOLOv3)
 {
-    int targetId = GetParam();
+    int backendId = get<0>(GetParam());
+    int targetId = get<1>(GetParam());
+    if (backendId == DNN_BACKEND_INFERENCE_ENGINE && targetId == DNN_TARGET_MYRIAD)
+        throw SkipTestException("");
     std::vector<cv::String> outNames(3);
     outNames[0] = "yolo_82";
     outNames[1] = "yolo_94";
@@ -155,11 +184,25 @@ TEST_P(Test_Darknet_nets, YOLOv3)
     classIds[0] = 7;  confidences[0] = 0.952983f; boxes[0] = Rect2d(0.614622, 0.150257, 0.286747, 0.138994);  // a truck
     classIds[1] = 1; confidences[1] = 0.987908f; boxes[1] = Rect2d(0.150913, 0.221933, 0.591342, 0.524327);  // a bycicle
     classIds[2] = 16; confidences[2] = 0.998836f; boxes[2] = Rect2d(0.160024, 0.389964, 0.257861, 0.553752);  // a dog (COCO)
+    double scoreDiff = (targetId == DNN_TARGET_OPENCL_FP16 || targetId == DNN_TARGET_MYRIAD) ? 4e-3 : 8e-5;
+    double iouDiff = (targetId == DNN_TARGET_OPENCL_FP16 || targetId == DNN_TARGET_MYRIAD) ? 0.011 : 3e-5;
     testDarknetModel("yolov3.cfg", "yolov3.weights", outNames,
-                     classIds, confidences, boxes, targetId);
+                     classIds, confidences, boxes, backendId, targetId, scoreDiff, iouDiff);
 }
 
-INSTANTIATE_TEST_CASE_P(/**/, Test_Darknet_nets, availableDnnTargets());
+const tuple<DNNBackend, DNNTarget> testCases[] = {
+#ifdef HAVE_INF_ENGINE
+    tuple<DNNBackend, DNNTarget>(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_CPU),
+    tuple<DNNBackend, DNNTarget>(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_OPENCL),
+    tuple<DNNBackend, DNNTarget>(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_OPENCL_FP16),
+    tuple<DNNBackend, DNNTarget>(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_MYRIAD),
+#endif
+    tuple<DNNBackend, DNNTarget>(DNN_BACKEND_DEFAULT, DNN_TARGET_CPU),
+    tuple<DNNBackend, DNNTarget>(DNN_BACKEND_DEFAULT, DNN_TARGET_OPENCL),
+    tuple<DNNBackend, DNNTarget>(DNN_BACKEND_DEFAULT, DNN_TARGET_OPENCL_FP16)
+};
+
+INSTANTIATE_TEST_CASE_P(/**/, Test_Darknet_nets, testing::ValuesIn(testCases));
 
 static void testDarknetLayer(const std::string& name, bool hasWeights = false)
 {

modules/dnn/test/test_precomp.hpp

@@ -53,7 +53,7 @@ namespace opencv_test {
 using namespace cv::dnn;
 
 CV_ENUM(DNNBackend, DNN_BACKEND_DEFAULT, DNN_BACKEND_HALIDE, DNN_BACKEND_INFERENCE_ENGINE)
-CV_ENUM(DNNTarget, DNN_TARGET_CPU, DNN_TARGET_OPENCL, DNN_TARGET_OPENCL_FP16)
+CV_ENUM(DNNTarget, DNN_TARGET_CPU, DNN_TARGET_OPENCL, DNN_TARGET_OPENCL_FP16, DNN_TARGET_MYRIAD)
 
 static testing::internal::ParamGenerator<DNNTarget> availableDnnTargets()
 {

samples/dnn/classification.cpp

@@ -23,7 +23,7 @@ const char* keys =
     "{ backend     | 0 | Choose one of computation backends: "
                         "0: default C++ backend, "
                         "1: Halide language (http://halide-lang.org/), "
-                        "2: Intel's Deep Learning Inference Engine (https://software.seek.intel.com/deep-learning-deployment)}"
+                        "2: Intel's Deep Learning Inference Engine (https://software.intel.com/openvino-toolkit)}"
     "{ target      | 0 | Choose one of target computation devices: "
                         "0: CPU target (by default),"
                         "1: OpenCL }";

samples/dnn/classification.py

@@ -34,7 +34,7 @@ parser.add_argument('--backend', choices=backends, default=cv.dnn.DNN_BACKEND_DE
                     help="Choose one of computation backends: "
                          "%d: default C++ backend, "
                          "%d: Halide language (http://halide-lang.org/), "
-                         "%d: Intel's Deep Learning Inference Engine (https://software.seek.intel.com/deep-learning-deployment)" % backends)
+                         "%d: Intel's Deep Learning Inference Engine (https://software.intel.com/openvino-toolkit)" % backends)
 parser.add_argument('--target', choices=targets, default=cv.dnn.DNN_TARGET_CPU, type=int,
                     help='Choose one of target computation devices: '
                          '%d: CPU target (by default), '

samples/dnn/object_detection.cpp

@@ -25,7 +25,7 @@ const char* keys =
     "{ backend     |  0 | Choose one of computation backends: "
                          "0: default C++ backend, "
                          "1: Halide language (http://halide-lang.org/), "
-                         "2: Intel's Deep Learning Inference Engine (https://software.seek.intel.com/deep-learning-deployment)}"
+                         "2: Intel's Deep Learning Inference Engine (https://software.intel.com/openvino-toolkit)}"
     "{ target      |  0 | Choose one of target computation devices: "
                          "0: CPU target (by default),"
                          "1: OpenCL }";

samples/dnn/object_detection.py

@@ -35,7 +35,7 @@ parser.add_argument('--backend', choices=backends, default=cv.dnn.DNN_BACKEND_DE
                     help="Choose one of computation backends: "
                          "%d: default C++ backend, "
                          "%d: Halide language (http://halide-lang.org/), "
-                         "%d: Intel's Deep Learning Inference Engine (https://software.seek.intel.com/deep-learning-deployment)" % backends)
+                         "%d: Intel's Deep Learning Inference Engine (https://software.intel.com/openvino-toolkit)" % backends)
 parser.add_argument('--target', choices=targets, default=cv.dnn.DNN_TARGET_CPU, type=int,
                     help='Choose one of target computation devices: '
                          '%d: CPU target (by default), '

samples/dnn/segmentation.cpp

@@ -26,7 +26,7 @@ const char* keys =
     "{ backend     | 0 | Choose one of computation backends: "
                         "0: default C++ backend, "
                         "1: Halide language (http://halide-lang.org/), "
-                        "2: Intel's Deep Learning Inference Engine (https://software.seek.intel.com/deep-learning-deployment)}"
+                        "2: Intel's Deep Learning Inference Engine (https://software.intel.com/openvino-toolkit)}"
     "{ target      | 0 | Choose one of target computation devices: "
                         "0: CPU target (by default),"
                         "1: OpenCL }";

samples/dnn/segmentation.py

@@ -36,7 +36,7 @@ parser.add_argument('--backend', choices=backends, default=cv.dnn.DNN_BACKEND_DE
                     help="Choose one of computation backends: "
                          "%d: default C++ backend, "
                          "%d: Halide language (http://halide-lang.org/), "
-                         "%d: Intel's Deep Learning Inference Engine (https://software.seek.intel.com/deep-learning-deployment)" % backends)
+                         "%d: Intel's Deep Learning Inference Engine (https://software.intel.com/openvino-toolkit)" % backends)
 parser.add_argument('--target', choices=targets, default=cv.dnn.DNN_TARGET_CPU, type=int,
                     help='Choose one of target computation devices: '
                          '%d: CPU target (by default), '