[PD] Body tracking

[Pedro Lopes]

Not defending anything, but just to remind 60 fps of a pointgrey camera is
not slow. you probably will have a lot of trouble in dealing with 60 frames
trying to cycle through your code every second. Accels and other hardware
sensors are very useful too, and it very good results. But not the best for
3d positioning of a point in space, but excellent at giving the rotation of
that point in space (i.e.: accels, gyros).

:)

On Sat, Jan 8, 2011 at 7:21 PM, marcello <wallacechemical at gmail.com> wrote:

> On 08/01/11 14:25, cyrille henry wrote:
> > hello,
> >
> > for the kung fu : movement are usually very fast. a camera is usually to
> > slow to be useful.
> >
> > i personally prefer using sensor like accelerometter on the body.
> > you can use wiimote or some other (faster) sensors system.
> >
> > here is a video of a performance i worked for few years ago.
> > http://vimeo.com/4596629
> > sensors are used at time : 4'57 to 6'06 and from 6'43 to 7'23.
> >
> > at 6'43, you can see that this kind of sensors are lot's more accurate
> > that what you'll be able to do with a camera.
>
> That's a good point about the sensors, I didn't know this camera-latency
> problem.
> WHat kind of sensor have you used in your work ?
> Have you used wireless sensors ?
>
> > imo, camera are good to track body position.
> > kinect look to have a sensing zone that is a bit limited.
>
> A combination of the two could be an idea, but then it's complicated to
> merge the data...
>
> Thanks for the infos
>
>
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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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