[PD] Motion Detection Strategies - Gem

Alexandre Castonguay acastonguay at artengine.ca
Sat Oct 7 02:05:15 CEST 2006


Hi again,

You have to get the cvs version for GridFlow to use the lti objects. You
can find the info here : http://gridflow.ca.  I have a logitech camera
(quickcam 4000) that is supported by http://saillard.org.  For the usb
wireless adaptor I am not sure.

Once your network access is configured, you can get a lot of help to
install and run pd (+ GridFlow) from irc.freenode.net, channel #dataflow.

Good luck,

Alexandre

> Is there some easy installation to try out GridFlow? How hard is it to
> install the Fedora Core and add the planet ccrma packages, for a
> complete Linux beginner?
>
> I'm on WinXP, but I have tried out PD in Linux using Pure:Dyne. The
> gridflow examples didn't seem to work, however... Nor did PMPD, if I
> remember. They just, well, didn't do anything...
>
> I also don't know, how hard it would be to get the Logitech camera
> running under Linux. And to get my wireless USB running in Linux,
> which is the only way I can get on the internet, to download the
> drivers and software I might need to make everything run...
>
> ~David
>
> On 10/6/06, Alexandre Castonguay <acastonguay at artengine.ca> wrote:
>> Hello David,
>>
>> You could track a red led (or bright dot) in GridFlow by using
>> [lti.SplitImageToRGB] and sending the red channel to [#motion_detect].
>> It
>> outputs x and y values.  I have some images of drawings made after this
>> here : http://artengine.ca/acastonguay/projets/plotter/.  You'll also
>> find
>> some  images of early motion detection studies by the Galbraiths that
>> puts
>> this in perspective.
>>
>> Cheers,
>>
>> Alexandre
>>
>> Le Vendredi 6 Octobre 2006 18:27, Mathieu Bouchard a écrit :
>> > On Fri, 6 Oct 2006, David Powers wrote:
>> > > Finally, are there more advanced motion detection strategies? Like,
>> say,
>> > > could I somehow put a bright red dot on my index finger, and just
>> detect
>> > > where my index finger is? I'd love to hear what people have done.
>> >
>> > Alexandre Castonguay has done that a few years ago using
>> high-intensity
>> > LED. I'm doing the same for my girlfriend's project, which will be
>> > presented as Café Esperanza on the 19th at 20:00.
>> >
>> > Café Esperanza is at the corner of Saint-Viateur & Saint-Laurent, in
>> the
>> > city mentioned below:
>> >
>> >   _ _ __ ___ _____ ________ _____________ _____________________ ...
>> >
>> > | Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju
>> > | Freelance Digital Arts Engineer, Montréal QC Canada
>>
>>
>>
>






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