[PD] advices needed to track dancer (kinect, osceleton, tuio, pidip)

[manecante]

hello,

Thank's for your replies.

> if you work with kinect, osceleton send also the coordinate of the user
> before it track it with the psi pose. you can just listen to /user/1
> /user/2 etc ... to get the coordinates (3 floats)

It's good to know! Thank's for that.

I think i am gonna follow this option with osceleton as it seems to be
the most simple.

I should look more closely to the pdp_opencv though but i realised
that the pdp_freenect requires a lot of cpu (40%_50%) on my thinkpad
w500, and combined with the pdp_opencv objects it is not really usable
so far.
And i have got also a segmentation fault sometimes that makes pd
crash. (Pd 0.43.1test2). I should maybe go back to a previous
version..

delphine

On Tue, Jun 21, 2011 at 5:38 PM, olm-e <ol at ogeem.be> wrote:
>
>> hi,
>>
>> i need to track a dancer to project and map videos on him (one of the
>> video is a human body on a black background).
>> I am trying the kinect at the moment thinking first that it would be
>> the easiest solution because it has the infrared camera and no need of
>> infrared light. So, I have made a first patch using osceleton to get
>> the coordinate of the dancer and mapped these X/Y/Z coordinates to
>> feed a translate object connected to pix_film so the video is
>> following the dancer.
>>
>> Regarding this solution, the limits are :
>> - the distance the kinect can track : from what i experimented and
>> read it can not track correctly with more than 4,5 meters.
>> - the PSI pose is required (it is not a big deal because the show
>> starts in the dark anyway but would be better without it).
>>
>> Now here are my questions:
>>
>> - i have got pidip working and i read that i could use the [pdp_joint]
>> object to avoid to do the PSI pose, but the problem is i don't
>> understand how to use it regarding this project and if it would be
>> possible to get the coordinates like with osceleton.
>>
>> - I know there is also the TuioClient object that could be usefull but
>> after binding it to osceleton port nothing happens.
>>
>> - I have never worked with tracking motion and video projections
>> before and i am also wondering where i should put the beemer and
>> camera to be the most efficient as possible.
>> (I don't know yet the dimensions of the stage ..)
>>
>> - Someone told me that it would be maybe easier to do it with the ps3
>> eye camera removing the IR filter, and put it on the cealing to work
>> only with the X/Y axes.
>> any ideas on this ?
>>
>> Any advice would be very much appreciated,
>>
>> #ubuntu 10.04
>> #fireGL v5700
>>
>> thanks in advance
>> delphine
>>
>>
>
> if you work with kinect, osceleton send also the coordinate of the user
> before it track it with the psi pose. you can just listen to /user/1
> /user/2 etc ... to get the coordinates (3 floats)
> the problem is if the dancer makes the psi pose and got tracked, then that
> data is not send anymore, but the whole sceleton instead.
>
> the ps3eye with IR is also a good option but require more calibration.
>
> Olm-e
>
>
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