Hello, 
 
there are severals ways to do so with Pd and Gem.
First is the [pix_artoolkit] extra for Gem.
But your patterns have to follow Artoolkit requirement (a big black and white border).

Then there are severals objects in [pix_opencv] to do so.
[pix_opencv_matchshape] compares shapes from [pix_opencv_contours] and you can recognize pattern with different shape.
[pix_opencv_knear] compares a pattern to a library of loaded images and gives the closes one. (but I never use it)

at least, I made a [pix_opencv_patreco] a while ago which has never been release and is still experimental, but it was made in the though of fiducial recognition.

hope this helps 

antoine



--
do it yourself                      
http://antoine.villeret.free.fr


2014-05-13 21:27 GMT+02:00 Leandro da Mota Damasceno <lemota@gmail.com>:
Hi Ryan,

I considered using Fid.Gen, but it still works with reactivision, meaning it still works with its constraints. I wonder the degrees of freedom I have working on their designs... I might end up using it. But my idea of designing fiducials envolve getting and interactive tattoo :) 

best,

Leandro


On Tue, May 13, 2014 at 4:21 PM, Ryan Smith <bigryeguy@gmail.com> wrote:
You can create your own fiducials. I've used
https://code.google.com/p/fidgen/ in the past. It will give you images
of the fiducials as well as the tree file you need to parse them. I've
got some video processing stuff I did that shows how I implemented it
in PD. You could also use my fiducials and all.trees if you want, as
they are under a lesser bsd unlike the reactable ones.
https://github.com/goldfish/LoH-LiveVideo

On Tue, May 13, 2014 at 12:06 PM, Leandro da Mota Damasceno
<lemota@gmail.com> wrote:
> Hi all!
>
> So, I'm currently working on a project using fiducials, and I was wondering
> if there is another way to use theses instead of using the reactivision
> designs. Is there any other CV-fiducial library I can use on PD?
>
> Leandro
>
> _______________________________________________
> Pd-list@lists.iem.at mailing list
> UNSUBSCRIBE and account-management ->
> http://lists.puredata.info/listinfo/pd-list
>


_______________________________________________
Pd-list@lists.iem.at mailing list
UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list