Tracking in close proximity for takeoff/landing

[negvet]

Very nice and useful work first of all.

It works just fine for me, but when the distance between the camera and the LEDs is no less than 0.5 meters.
I would like to use your project for takeoff/landing operations. I was not able to set up the parameters so that the tracking works in close proximity (100-300 mm between the camera and the LEDs).
Increasing max blob area doesn't help (I set it to 1000).

Could you please help.

My bag file is attached (with good tracking on 0.5 m distance and no tracking on 200 mm distance).

marker_positions:

• x: 0.036
  y: 0.055
  z: 0.009
• x: 0.004
  y: 0.023
  z: 0.009
• x: -0.022
  y: -0.015
  z: 0.009
• x: 0.016
  y: -0.059
  z: 0.009

2019-03-21-08-48-19.bag.tar.gz