On FPGA (but not CPU), face detection plus add-on models throws resize error.

Hardware/Software Used

Intel® Distribution of OpenVINO™ Toolkit 2018 R5

Intel® Vision Accelerator Design with Intel® Arria® 10 FPGA (IEI's Mustang-F100-A10)

On FPGA (but not CPU), face detection plus add-on models throws resize error.

following this: https://github.com/fritzboyle/openvino-with-fpga-hello-world-face-detection

Takeaways: (Looking at FPS of one video at a time using these models).

FPGA is not able to handle face detection plus add-ons (like age gender or head pose) on any video that was NOT the sample demo video as it runs into a resize error (highlighted below in yellow). However the CPU can run the face detection model with add-ons on any video (including the demo video).

Comparing the CPU vs FPGA running just the face detection model, the FPGA was always slightly slower than the CPU.

Questions/Concerns:

· Why won’t face detection plus add-on models work on non-demo videos on the FPGA? (As in, will work on demo video that comes with tutorial will support add-on face detection, but add-on face detection won't work on my own video file).

One video – demo video

W/out Specifying FPGA (aka CPU) –

[ INFO ] Total main-loop time:80316.55 ms

[ INFO ] Total # frames:1719

[ INFO ] Average time per frame:46.72 ms (21.40 fps)

HETERO mode with FPGA –

[ INFO ] Total main-loop time:55428.89 ms

[ INFO ] Total # frames:1719

[ INFO ] Average time per frame:32.24 ms (31.01 fps)

One video – non demo video

W/out Specifying FPGA (aka CPU) –

[ INFO ] Total main-loop time:88910.86 ms

[ INFO ] Total # frames:2029

[ INFO ] Average time per frame:43.82 ms (22.82 fps)

HETERO mode with FPGA –

[ ERROR ] OpenCV(4.0.1-openvino) /home/jenkins/workspace/OpenCV/OpenVINO/build/opencv/modules/imgproc/src/resize.cpp:3784: error: (-215:Assertion failed) !ssize.empty() in function 'resize'