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Index › Discussion › Exhibition › Auto-organizing system through multi-touch screen
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Auto-organizing system through multi-touch screen (Read 1612 times)
Luis Carli
Auto-organizing system through multi-touch screen
Jan 29th, 2010, 2:17pm  
Hello, I’m from São Paulo - Brazil, and I recently graduated.
My final graduation project, was an experiment on an auto-organizing system that can be influenced through a multi-touch screen. As the project rely heavily on Processing, I would like to share it here. It was showcased on FILE (International Electronic Language Festival).

http://luiscarli.com/lang/en/organized-complexity

There is also some other projects on the site, that unfold from the first one.
A interactive projection, showcased on the International Architecture Biennial, and a audio reactive projection:

http://luiscarli.com/lang/en/unfolds

Comments are welcome.
Luis Carli
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yelele_eu
Re: Auto-organizing system through multi-touch screen
Reply #1 - Feb 1st, 2010, 3:32pm  
Dear Santa,

could i have my personal multitouch screen ?

Wink


I really enjoy your stuff, ... and i really want to experiment multitouch screen : how did you interface your's with processing ?
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Luis Carli
Re: Auto-organizing system through multi-touch screen
Reply #2 - Feb 2nd, 2010, 4:17am  
Hey, build a multi-touch screen like the one I used its not a impossible task!
Its easier than it sound like.

I have a lot of help from the forums of the NUI group, there is a lot o information there, wich they are already organizing and putting in wikis and pdf.

I used the app Comunity Core Vision (CCV) to track the multi-touch and send the information through tuio protocol to processing. To receive the tuio information in processing I used a reactivision librarie.
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yelele_eu
Re: Auto-organizing system through multi-touch screen
Reply #3 - Feb 2nd, 2010, 3:23pm  
Can you tell me more ?
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yelele_eu
Re: Auto-organizing system through multi-touch screen
Reply #4 - Feb 2nd, 2010, 3:25pm  
Is this Document you used for making your multitouch screen

What kind of resolution it produce (minimal distance between two finger position)
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Luis Carli
Re: Auto-organizing system through multi-touch screen
Reply #5 - Feb 3rd, 2010, 5:15am  
This document helped me a lot, but somethings I solved differently.
Instead of soldering several LEDs, wich is a difficult process if you want them to be close to each other. I found a infrared LED ribbon, sold on http://environmentallights.com/

Instead of applying the silicon to the acrylic, I applied it to a milk paper. Using Tinkermans method: http://nuigroup.com/forums/viewthread/2383/

Here are some sketchs from the project of the multi-touch table:

...
...

About the resolution, it depends on the camera. For speed reasons (I wanted a frame rate of at least 45 frames per second) the camera resolution was 320x240.  If the fingers weren't touching each other, it was displayed as different touches.
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