Natural gesture based user interface methods and systems

摘要

Described herein is a user interface that provides contextual feedback, controls and interface elements on a display screen of an interactive three-dimensional imaging system. A user (2410) interacts with the interface to provide control signals in accordance with those recognised by the system to a makes use of at least one point of interes (2310, 2320) in a three-dimensional scene that is imaged by the imaging system to provide control signals for the user interface. Control signals are provided by means of gestures (2420, 2430) which are analysed in real-time by gesture recognition processes that analyse statistical and geometrical properties of point of interest motion and trajectories.