MULTI-TOUCHLESS FINGER TIP TRACKING

we looked to create an interaction system that is straight out of the movies, bringing to reality the use of finger tracking with a low cost. Using a graph based approach allows us to compute to a high accuracy the locations of a user's fingertips. What is important to note, is that this is achieved without using gloves. The algorithm used to track the fingers is in itself fast to compute, and as a result can be used with up to four hands.

Philip Krejov, Richard Bowden
Multi-touchless: Real-Time Fingertip Detection and Tracking Using Geodesic Maxima 
In International Conference on Automatic Face and Gesture Recognition, IEEE, pp. 7, 2013. 
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