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Motion compensation…

Motion compensation vs. "inside out" head tracking

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新規会員登録 お客様
Joined: 3 years ago

With “outside in” head tracking “lighthouses” are required in order to have 6dof head tracking. Due to the rotating parts inside of them, they can’t be mounted on a moving platform, so they are stationary. That, in turn, calls for motion compensation (at least for platforms that have a large motion range). I was wondering if “inside out” tracking could help here. On an open platform (i.e. no enclosure) it would see both the stationary background (which, from the headset’s point of view would be “moving”) and the moving platform (which it would preceive as “stationary”). That might cause some confusion. Fully enclosing the platform, so that the headset sees only movements of the head relative to the platform could be a solution, without requiring motion compensation. However, fully enclosing the platform might be hard to do.
I’m wondering whether headsets using “inside out” tracking (like the new PIMAX Crystal) can be switched from “markerless” to “marker-based” mode. In the latter case one could place the markers on the moving platform and the headset would see only the movements relative to the platform, completely removing the need for motion compensation.

アクティブメンバー お客様
Joined: 7 months ago

I have thought of this as well and I’m very curious. Have you had any feedback yet?

新規会員登録 お客様
Joined: 3 years ago

Hey ! Fully enclosed rig is the best solution, yet hard to achieve. Marker mode would be awesome but I doubt that it will be implemented any day. 

I am using OpenXR Motion Compensation + 3DOF rig + FlyPT and it works fine.
I created this support to hold the controller as it’s the most reliable way to track the motion.