Enhanced input using flashing electromagnetic radiation

Enhanced input using flashing electromagnetic radiation

  • CN 101,617,271 B
  • Filed: 02/15/2008
  • Issued: 07/15/2015
  • Est. Priority Date: 02/15/2007
  • Status: Active Grant
First Claim
Patent Images

1. a computer implemented method, comprising:

  • The first image that access the electromagnetic radiation from environment transmitter placed on the second side of screen and object, that be caught on the first side of screen and the second image, described first image is captured when using projected electromagnetic radiation irradiation object, and described second image is captured when described projected electromagnetic radiation is extinguished;

    Based on the first image and the second image comparison and determine the primary importance of object relative to described screen, comprise;

    First image and the second image subtraction are generated differential image to remove surround lighting;

    AndDetermine the place of object in differential image;

    WithBased on determined primary importance controlling application program.

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