I was invested in lowcost Mocap for quite some time.
What you see here is research by VCI, an institute funded by Intel with help from a German University, two max plank institutes and the research center for AI.
None of the Code written is usable for any tool or any application. All they do is experiment and write their findings in a paper. You will not see this tech until someone picks it up and decides to implement it. They demoed this at SIGGRAPH Asia in 2011 and the foundry (biggest dudes for production ready compositing tools) showed interest.
Mocap is divided into Markerless and marker mocap. 99% of production used mocap is used with markers, since they are highly reliable. Usually you build a rig in motion builder and map it to whatever.
All markerless tech is highly experimental and suffers from mostly jitter, that needs to be smoothed and starts to eat at how natural movement looks.
Even in the demo you provided, look at the last scene they show with the textured woman. It suffers from stuttering, the hands jerk from time to time about 3-5cm.surely this can be refined with good equipment, but than you can just go the reliable and tests marker route.
I worked with
http://ipisoft.com/ they generate a point cloud from either 6+ PlayStation eyes or two kinects and auto allign a biped to that. Its ultra cheap, but no finger tracking, no face, no head movement (unless you strap a WII note to your head). But most marker less low cost solutions come to these challenges, either they skip it or interpolate.
All in all: Without hours of refine, mocap is god damn expensive. You need at least 10+ 1080 or preferably 4k cameras, the infrastructure and calculation power for that. Not to mention space, marker setting, rigs etc.
All other solutions currently have major pitfalls, that can be worked around, but only with painful amounts of time.
Even this super awesome demo sucked at Fingers. The Hands jitter and they don't even try fingers, all static.
If you want it proper, be prepared to drop some mad cash.
edit: holy moly,
just dug up some mocap test I did in High school days
