Hardware & Technical Open track cutting off tracking

[Crook]

Hi,

I've made my own IR tracker, which sticks to my headphones. Webcam adjusted for IR, and just now I've got it to ignore exposure and it's at 15fps @ 1024x768.

However, at 640x480 the cam runs at 30fps, but when I sit back, it loses the track.

I assume (but am not sure) that the blob tracking isn't working as they are too small, or too big? But the minimum size and maximum size settings in open track don't seem to help. The 3 points just disappear to a black screen if I'm far away from the camera.

Anyone else have this, and what can I do about it?

 

[krysohmyz]

Try to turn off the room's heating.

No seriously, your camera isn't obviously sensitive enough to "see" the IR dots after certain distance. You may need stronger LEDs or better camera. Also if you're using 640x480 resolution and you're sitting more than a meter away from the camera, the diodes should be at least ten centimeters apart so the camera can distinguish between them correctly.