Hi, I'm trying to do some tracking with pix_blob (and a simple webcam) and seems to work ok but not really precise. I want to use the pix_multiblob for realize something like this:

http://www.ubikteatro.com/UBIKteatro/oscilla_videos.html
(here he's using a kinect)

but the problem is that the blobs keep changing. If I use the pix_movement whenever there's no movement the blob "disappear", if I use the background subtraction is not really precise so the camera keeps finding different blobs. I need to find, let's say 5 blobs, and then to keep them. As in the link you can see, whenever an object/person is captured, the blob for that object/person does not change. Otherwise the installation can't work properly.

The multiblob patch I'm using is the MT_BLOBTRACKER_GEM that you can find at this link:

http://www.puredata.it/index.php?option=com_docman&Itemid=41

Do you know if there are other libraries that allows to identify an object, and keep one specific blob to follow that particular object?

thank you

You can try using EyesWeb separately, sending the values to puredata over OSC.

You might want to try finding a GLSL shader that will look for contours on a thresholded image...the blobs that get detected would be dependent on lighting.

Hi leech,

there has been a discussion about that on the list recently:

http://comments.gmane.org/gmane.comp.multimedia.puredata.general/91078

Is that your topic?

i will also look into that, sooometime...

all the best,

-j-