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METHOD FOR CALIBRATING A STEREOSCOPIC PHOTOGRAPHY DEVICE

  • US 20140204181A1
  • Filed: 02/22/2012
  • Published: 07/24/2014
  • Est. Priority Date: 02/24/2011
  • Status: Active Grant
First Claim
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1. Method for calibrating a stereoscopic photography device having two cameras for capturing a right-hand image and a left-hand image, said device having a plurality of defects, each of these defects being able to be corrected by applying a transformation to at least one of the two captured images, said defects being hierarchized in at least two orders:

  • a step of estimating the correction parameters for the defects of a given order;

    a step of estimating the correction parameters for the defects of a second order higher than the first order;

    a new step of estimating the correction parameters for the first-order defects, the estimation of the second-order parameters being used for a new estimation of the correction parameters for the first-order defects;

    characterised in that four orders are used, comprisinga global translation offset of the image;

    a horizontal and vertical trapezium deformation;

    a rotation;

    a zoom factor.

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