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Multi-projector mosaic with automatic registration

  • US 6,733,138 B2
  • Filed: 08/15/2001
  • Issued: 05/11/2004
  • Est. Priority Date: 08/15/2001
  • Status: Active Grant
First Claim
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1. A method for forming a mosaic image on a display surface with a plurality of projectors, comprising:

  • projecting, for each projector in turn, a single registration image onto the display surface so that a union of the projected registration images forms a polygon;

    acquiring with a camera, for each single registration image in turn, a corresponding input image;

    identifying a display area on the display surface enclosed by the polygon;

    determining, for each projector, a single projective matrix between the display area and each input image, wherein the single projective matrix is a homography;

    warping, for each projector, a source image according to the corresponding single projective matrix;

    weighting pixels of the warped source image according to the single projective matrix; and

    concurrently projecting the warped and weighted source images directly onto the display surface to form the mosaic image.

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