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Hand-Gesture Recognition Method

  • US 20090103780A1
  • Filed: 12/17/2008
  • Published: 04/23/2009
  • Est. Priority Date: 07/13/2006
  • Status: Active Grant
First Claim
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1. A method of providing device inputs, the method comprising:

  • illuminating hand gestures performed via a bare hand of a user in a foreground of a background surface with at least one infrared (IR) light source;

    generating a first plurality of silhouette images associated with the bare hand based on an IR light contrast between the bare hand and the background surface;

    generating a second plurality of silhouette images associated with the bare hand based on an IR light contrast between the bare hand and the background surface;

    determining a plurality of three-dimensional features of the bare hand relative to the background surface based on a parallax separation of the bare hand in the first plurality of silhouette images relative to the second plurality of silhouette images;

    determining a provided input gesture based on the plurality of three-dimensional features of the bare hand;

    comparing the provided input gesture with a plurality of predefined gesture inputs in a gesture library; and

    providing at least one device input corresponding to interaction with displayed visual content based on the provided input gesture corresponding to one of the plurality of predefined gesture inputs.

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