Muharrem Yildirim

Multitouch Table


Multitouch technologies enable people to interact with a system more intuitively and are becoming widespread because of this more natural interaction. Use of these technologies are expected to become more widespread.

For this reason, we have decided to build a low cost multitouch table as a platform, to develop multitouch applications to improve the interaction with systems.

The table is built using Rear Diffuse Illumination technique in order to sense touch, by tracking the blobs and their movements. It consists of two led arrays (total of 225 IR leds), a projector, and a regular webcam that we took the IR filter out.

Now, it is a standalone table where people are encouraged to come and use the table to develop their own interactive applications by connecting their laptops to the camera and the projector.

Following is a demo video for the table.