Starting from the 2020.4 release, OpenVINO™ supports reading native ONNX models. Core::ReadNetwork() method provides a uniform way to read models from IR or ONNX format, it is a recommended approach to reading models. Example:

InferenceEngine::Core core;

auto network = core.ReadNetwork("model.onnx");

OpenVINO™ doesn't provide a mechanism to specify pre-processing (like mean values subtraction, reverse input channels) for the ONNX format. If an ONNX model contains dynamic shapes for input, please use the CNNNetwork::reshape method for shape specialization.

Unsupported types of tensors:

string,
complex64,
complex128.