World reference coordinate system

[muella91]

Hello,

So far I only have tested the single camera pose tracking. I have to say thanks for sharing this amazing software!

Our goal is to use OPT for motion capturing for our VR application. For this, we have to match the world reference coordinate system (CS) of OPT with the coordinate system of our HTC Vive system.
As I read here (https://github.com/OpenPTrack/open_ptrack/wiki/Camera-Network-Calibration), the default position of the OPT CS is the last checkerboard position, so if the camera positions change, I have to recalibrate the system and the CS will get a new position right?

I also read that it is possible to set a user-defined CS. My question is, how accurate can I position that one? The CS of the HTC Vive (which does not change, because the Lighthouse station and the playground are fixed) and the CS of OPT should match exactly.

E.g., before working with OPT and working only with one Kinect, we placed a HTC Tracker on the Kinect to get the position of the Kinect (and its coordinate system), to calculate the transformation matrix.

Thanks!