KarlGilmartin I have downscaled the full frame to a single 300x300 frame but I notice that the range of detection is poor.
Could you explain that a bit? Usually 300x300 will be enough to confidently detect people in the frame, but might show some inaccuracies when these people are far away - essentially taking up less pixels.
Easiest thing you could do is just use a model with a different input layer size. There are a bunch of models available on OpenVino - look for person detection and person detection retail.
Keep in mind that the higher the input size, the lower the end fps will be.
Thanks,
Jaka