WorldViz PPT (Precision Position Tracking) motion tracking?

I tried them at this year's Siggraph. They are precise and low-latency, but nowhere near cost-effective for the average consumer. You might as well use an Ascension Flock of Birds.

The system requires multiple cameras on tripods to be positioned around the capture volume, and each camera costs thousands of dollars. Not to mention wires.

...Did I mention each camera costs thousands of dollars?

I'm not convinced about PPT by optical solution.

Image analysis isn't very fast, and it should induce a disturbing inputLag beetween your movment, and the movment in game.
Nothing worse in a VR than being disconnected of your own movment.

Imo, the best is magnetical (if your close to your computer, like on a chair)
Or RadioFrequency. (like there is some prototype in another topic).

Visual is very good for tracking all the body movment, without wearing strange clothes.
but if its just tracking general position in the room, or just some parts like the hands, i prefer others solutions.

Optical, inertial, electromagnetic ...

While there continue to be many approaches to head tracking for use in immersive virtual reality, few stand out as effective as optical for head position and inertial for head rotation. Combined, optical-inertial hybrid solutions give fast and precise responses to rotations (via inertial sensors) and reliably accurate responses over long distance to translations (via optical sensors). From my experience, neither optical nor inertial alone provide satisfactory tracking for wide area applications (e.g., spaces 5 x 5 meters and beyond).

WorldViz has promoted hybrid tracking for years, and in my opinion it continues to be the only viable solution for wide area tracking. Latency is extremely low where it counts (head rotations), and at 180 fps the optical sensors we use deliver on responsiveness and not just accuracy.

The upcoming Dev Kit 2 by Oculus follows this hybrid approach and from my firsthand experience at CES this year, it's a stellar implementation based on a single camera, which combined with the new low-persistence display electronics makes for one of the best VR experiences I've had.

Is WorldViz PPT technology consumer priced? No, definitely not. Might it be in the future? Perhaps, especially if the market for wide-area tracking grows at anywhere near the pace we've seen for seated VR. Today, WorldViz is one of few firms providing a wide-area solution designed for VR professionals.

Here's an example of wide-area tracking:
http://youtu.be/ABxluv1FlD4
and an article showcasing someone who makes great use of it:
http://mashable.com/2014/03/26/zuckerberg-tried-stanford-vr-oculus-rift/

Andy Beall
CEO & CTO of WorldViz