By Muhammad Ali Ismail, Ismail Abdul Ghani, Hammad Shahid, Abid Karim, Mansoor Ebrahim, Hasan Jamil
Keywords: Multi Touch, LED Laser Plane, Touch sensitive input devices, Table top, rare projected displays
This paper presents a very interactive, innovative and rarely used multi touch surface. The most attractive factor in this surface is that it can sense more than one contact at a time. Different techniques are being used for the construction of this IR touch surface. The technique which we have used to build multi touch is LED-LP (LED Light Plane) technique. A very useful and cost efficient technique as compared to other techniques. All the techniques are based on IR source. Calibration factor is the most important factor for sensing. The details of the implementation phase and the initial prototype result is enclosed in this paper.