Described is a kind of to make one to provide from depth image with the natural interaction of Computerized three-dimensional hand gesture through ranging imaging system. This method in the hand of user and can provide context feedback information and be sent to user from the singular point that be considered of detection, tracking and analysis of identification gesture simultaneously. The hand of singular point of concern: including hand (multiple) tip, finger tip (multiple), the centre of the palm and mass center hand, for defining the pointer of at least one expression. (these) point tracks at any time is analyzed to permit a determination that sequentially and/or simultaneously the performed posture of " direction ", " activation " is singlehanded with of concern.
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