Human-to-Computer Natural Three-Dimensional Hand Gesture Based Navigation Method

A method for providing natural human-to-computer interactions using a three-dimensional hand gesture based recognition system, the method comprising the steps of:

• a) determining at least two points of interest in a hand of a user;
• b) recognising natural gestures performed by said at least two points of interest comprising:
• b1) recognising a first natural gesture corresponding to a three-dimensional hand pose to trigger the beginning of a human-to-computer interaction by determining when two points of interest in three-dimensional space move close to one another to a distance between the two points of interest below a predetermined threshold value;
• b2) recognising a second natural gesture from movements of the three-dimensional hand pose to control a continuous human-to-computer interaction by determining movement of at least one point of interest in the three-dimensional space, wherein the human-to-computer interaction is controlled as long as said first three-dimensional hand pose lasts;
• and
• b3) recognising a third natural gesture to trigger termination of the human-to-computer interaction by determining when the two points of interest move away from one another to a distance between the two points of interest which is higher than a second predetermined threshold value;
• and
• c) interacting with a graphical user interface using a sequence of said first, second and third natural gestures performed by said points of interest.