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Method for performing stereo matching to recover depths, colors and opacities of surface elements

  • US 5,917,937 A
  • Filed: 04/15/1997
  • Issued: 06/29/1999
  • Est. Priority Date: 04/15/1997
  • Status: Expired due to Term
First Claim
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1. A method for performing stereo matching comprising:

  • selecting a general disparity space representing a projective sampling of 3D space, where the projective sampling includes an array of cells in the 3D space;

    transforming k input images into a group of cells of the general disparity space, where k is two or more and the input images are comprised of pixels each having color values, such that each cell in the group has a set of color samples, where each color sample in the set originates from a color value of a pixel of one of the input images that maps to the cell;

    computing a color for each of the cells in the group based on the set of color samples for the cell;

    computing for each of the cells in the group a probability that the cell represents a visible surface element of an object depicted in the input images based on the set of color samples for the cell; and

    estimating an opacity for each of the cells in the group based on the probability that the cell represents a visible surface element.

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