http://www.sgomentocomics.com/dissertation-defense-gifts/ New app developed by professor Otmar Hilliges and his staff at ETH Zurich. This app enables users to operate their smartphones with simple hand gesture It does seem slightly odd at first: you hold the phone in one hand, and move the other in the air above its built-in camera making gestures that resemble sign language. Sometimes you move your index finger to the left, sometimes to the right. You can spread out your fingers, or imitate a pair of pliers or the firing of pistols.
source url All this weird kind of gestures was done by a new type of algorithm found by Jie song, who is student of Otmar Hilliges.the smartphone uses built in camera to register the gestures.it is not done on the bases is color or depth. The information it does register — the shape of the gesture, the parts of the hand — is reduced to a simple outline that is classified according to stored gestures. The camera directs the user according to the distance the hand is from the phone and alerts the user if its too close or too far. Many movement-recognition programs need plenty of processor and memory power,” explains Hilliges, adding that it is one of the best methods for smartphones.
see At present the program decodes 6 different gestures and acts accordingly to the commands. Otmar is highly convinced that this new gesture method is going to increase the interactivity level and also not belittle touchscreens, these gestures are only a supporting stands for touchscreens. What his intention was to keep the gestures as simple as possible so users can use it effortlessly .Otmar is very confident his app would reach into the market.