When object is out of FOV & re-appear, Rpi object tracking is not resuming about rpi-object-tracking HOT 2 CLOSED

Thank you for reporting this @Martin2kid, sorry about the behavior here being difficult to debug. I'm guessing the default PID gains do not work for the distance or relative angle of the camera to tracking target in your setup. Another possibility is that your camera needs to be rotated (--rotation <int>). The default rotation values match the camera orientation in this picture:

In 2.0 (target: end of year), I'm shipping a rework of the PID control system that will fix this behavior for the face model. I'm going to close this and consolidate updates about the PID system in #48.

I'm truly amazed at all of the prototypes being developed from this quick tutorial! The original tutorial code has poor API surfaces for additional development though, so I'm rewriting this tool to be usable as a library. I want to make it dead-simple to generate a new prototype app, optionally bring your own model, and calibrate the control scheme.

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Leigh,

Thank you much for input! I know my camera setup & orientation is exactly same with yours but about 3 to 8' distance.

I also suspect new Buster release may have something to do with this behavior (Your setup, I believe is started from pre-Buster 8-20-2020 release vs mine is Pi4 4GB with new Buster release)

I'll try with diffirent PID tinkering & hope that'll fix this behavior in my setup.

BTW; Your setup & servo movements are much smoother and predictably solid than Intels's NCS2 with OpenVINO + SSD model setup(Quite bit of jerks & sudden jolt of occasional movement--occasional jitter and PID setting always goes into oscillation eventually, no matter what value I change and still work in progress)

Your work is superior & solid!!!

LMK, if you want to try Pablo's FOC (Dual Brushless motor FOC controller for closed loop position control--I ordered 2 and I have 1 extra for you to experiment with and share with us if you like to, I can also order 2 motor with encoder plus build a pan & tilt frame for you.

I believe, You can do bunch of cool control with it, dynamic PID setup, almost realtime tracking!

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