Sample from OpticalFlow SDK not working in Orin Nano

Robotics & Edge Computing Jetson & Embedded Systems Jetson Orin Nano
1

I could compile the ./AppOfCuda Binary from the sample but when I try to run it, it giving following error:
GPU in use: Orin
Input file directory path : /home/nvidia/Pictures/Screenshots
Input file pattern : *.png
LoadNvOFAPI : NVOF library file not found. Please ensure that the NVIDIA driver is installed at /home/nvidia/Optical_Flow_SDK_5.0.7/Common/NvOFBase/NvOF.cpp;255

I could see it is unsupported on Jetson Nano from a couple of old posts, but is it still the case?

3

Hi,

Optical Flow SDK is a desktop library for the GPU connected through PCIe (dGPU).
Jetson is an integrated GPU (iGPU) system so it is not in the support of that SDK.

But the underlying hardware of Optical Flow SDK is called OFA, which is also available on the Orin series devices.
You can find our VPI sample to use that hardware in the location below:

/opt/nvidia/vpi3/samples/13-optflow_dense/

The document can be found in the below link:
https://docs.nvidia.com/vpi/sample_optflow_dense.html

Thanks.

5

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