Spatial Practice - Research: Multitouch Techniques

Upon further research there appears to be several different approaches to creating a Multitouch Surface.

Other than Optical (which is the approach I will be taking) there are Capacitive, Resistive, Acoustic and others.

The most popular optical techniques are as listed below:

• Frustrated Total Internal Reflection (ie. Perceptive Pixels)
• Rear Diffused Illumination (ie. Microsoft Surface)
• Front Diffused Illumination (ie. MTmini, MTbiggie)
• Diffused Surface Illumination
• Laser Light Plane
• LED Light Plane

(image from http://sethsandler.com/multitouch/)