[PD] Body tracking

Pedro Lopes pedro.lopes at ist.utl.pt
Sat Jan 8 20:19:46 CET 2011

If you want 3d and really fast... mocap. But they cost a lot and you have to
wear the tiny capture reflective IR balls.

Kinect is good, but latency exists. Games and developers do all sorts of
filtering to simplify data and make it realtime usable.

On Sat, Jan 8, 2011 at 7:16 PM, marcello <wallacechemical at gmail.com> wrote:

> On 07/01/11 23:14, Pedro Lopes wrote:
> > Body tracking depends on the hardware you have:
> >
> > is kinect the best way? no. but its awesomely cheap and non intrusive.
> > Do you have 10k dollars to spend in a vicon (http://www.vicon.com/)
> > motion tracker? They kill kinect accuracy in an eye blink.
> >
> > Is there cheaper than kinect? Oh yeah. webcams are there for you. Ps3eye
> > delivers 60 fps at an amazing cost, and if you want to spend more you
> > have pointgrey cameras (also 60fps or more) or less phillips has a
> > camera that i don't the model but gives an astonishing 90fps for 50
> > bucks. However camera solutions will require some computer vision
> > processing effort (well.. so does kinect! even more), and you loose the
> > depth information (Z) that kinect can offer.
> >
> > As always. it depends on a complex equation that involves your skill,
> > budget, desired application, needs (XYZ?), gestures or direct point
> > mapping, realtime or post?
> yeah, that's why it's difficult to decide what to use!
> I definitely need the depth information, as a kung fu form is moving in
> the space too; on the other side, kinect is probabily too slow.
> The pointgrey cameras or the one of philips sound really good, that's a
> pity that I loose the depth information.
> The sensor and software of Primesense could another possible solution:
> http://www.primesense.com/
> Thanks for answering
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Pedro Lopes (MSc)
contact: pedro.lopes at ist.utl.pt
website: http://web.ist.utl.pt/Pedro.Lopes
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