14. A system as in claim 12 , wherein the processing device determines an endpoint of the gesture based on the at least one first matched gesture model and the extracted geometrical features and backtracks through the images from the determined endpoint of the gesture to determine an actual starting point of the gesture.
14. A system as in claim 12 , wherein the processing device determines an endpoint of the gesture based on the at least one first matched gesture model and the extracted geometrical features and backtracks through the images from the determined endpoint of the gesture to determine an actual starting point of the gesture. 18. The system as in claim 14 , wherein the processing device includes a Dynamic Programming (DP) function for backtracking through the images.