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Method and apparatus for recognizing gesture in image processing system

  • US 8,014,567 B2
  • Filed: 07/17/2007
  • Issued: 09/06/2011
  • Est. Priority Date: 07/19/2006
  • Status: Active Grant
First Claim
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1. A method for recognizing a gesture in an image processing system, the method comprising:

  • detecting a face area in an image captured and input from a camera;

    dividing the image to predetermined areas with reference to a predetermined location of the face area, and setting the predetermined areas to gesture search areas;

    detecting a hand area in the gesture search areas;

    determining whether a gesture occur in the detected hand area; and

    selecting a detection area with respect to the gesture and transferring an image of the selected detection area as a control command for controlling an image devicewherein the determining of the gesture occurrence comprises;

    determining a skin color of the detected hand area by determining skin-color information of the face area;

    calculating a differential image of the hand area between a previous frame and a current frame;

    combining differential-area information of the differential image with the determined skin-color information to obtain a final image; and

    recognizing gesture occurrence from the final image when an overlapping area between the differential area information and the skin color information is larger than a predetermined area.

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