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METHOD AND APPARATUS FOR DEPTH SENSING KEYSTONING

  • US 20100061659A1
  • Filed: 09/08/2008
  • Published: 03/11/2010
  • Est. Priority Date: 09/08/2008
  • Status: Active Grant
First Claim
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1. A computer-implemented method for correcting image distortion in an image projected on a surface, comprising the operations of:

  • measuring a first distance between an image projection system and the surface, using a first measurement device to measure the first distance;

    measuring a second distance between the image projection system and the surface, using a second measurement device to measure the second distance;

    calculating a horizontal slope of the surface with respect to a projection path of the image projection system;

    creating a transform using at least the horizontal slope and the vertical slope; and

    applying the transform to a first image, thereby creating a second image.

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