Image goes upside down when using yaw about aitrack HOT 8 OPEN

For me this mostly goes away by putting model type at medium or heavy in the options.

from aitrack.

Having the same problem. It happens only when I turn my face towards the right. Very visible in the Opentrack preview, the Octopus begins turning, but then rolls upside down. The preview in AITrack looks fine.

Swapping back to 0.6.2, the problem dissapears.

from aitrack.

Hi. Thanks for reporting.

I know where the problem lies, but I'm not sure how to fully solve it yet. It should be mitigated on 0.6.3 with Medium/Heavy trackers, as @mote0230 says, as they use more facial points to do the position calculation. However, seems odd @seanamosw's case because Fast tracker it's actually the same as the one in 0.6.2...

Have you tried moving your camera to other position? Maybe that helps.

Will update as soon as I find something.

Thanks :)

from aitrack.

Having the same problem. It happens only when I turn my face towards the right. Very visible in the Opentrack preview, the Octopus begins turning, but then rolls upside down. The preview in AITrack looks fine.

Swapping back to 0.6.2, the problem dissapears.

+1 on this, reverting seems to help.

from aitrack.

Hi, thanks for your responses, I've change the tracking to Heavy and it seems like it has eliminated 95% of the issues, playing with lightning and angle of camera, I'm able to get a pretty good output now.

from aitrack.

Just a note here that I am experiencing this issue when using heavy in a well lit room.

The following might help you investigate:
Seems to happen at around 40 degrees of yaw and in my case, mostly only when turning my head left.
The problem seems to be less prevalent combine it with another movement: e.g. if I pitch my head up towards the camera or add a little bit of head roll before yawing.
When occurring, the yaw value will bounce between ~30 and ~40 degrees.

I use a PS3 Eye camera.

from aitrack.

this is an issue with correct_rotation attempting to compensate for yaw and pitch with the face being off center from the center of the preview window. when compensating it also needs to handle boundary conditions where the face is perpendicular to the direction of the camera

from aitrack.

Finally found the problem..it's has nothing to do with version..just reconnect the device i.e cam or apple phone sending the inputs that is connected via your pc ip address

from aitrack.