Slow performance using OpenVino

[dbousamra]

I am using your code, compiled against OpenVino l_openvino_toolkit_p_2018.3.343.

It works, but it's slower than it was using normal opencv. I'm not sure what I've done wrong. I added these lines where you run the networks:
PNet_.setPreferableBackend(cv::dnn::DNN_BACKEND_INFERENCE_ENGINE);
This is much slower than:
PNet_.setPreferableBackend(cv::dnn::DNN_BACKEND_OPENCV);

Any ideas?

[dbousamra]

Has anyone tried this code with OpenVino?

[runauto]

Has anyone tried this code with OpenVino?

I also find this problem。

[dbousamra]

@runauto What have you found? That it's slower in Open Vino? Did you learn anything interesting?