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Plane-based self-calibration for structure from motion

  • US 9,202,278 B2
  • Filed: 07/17/2012
  • Issued: 12/01/2015
  • Est. Priority Date: 08/19/2011
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • generating, by one or more computing devices, a Euclidean reconstruction for an image sequence comprising a plurality of frames according to a set of inter-image homographies estimated from point correspondences of structures in an entire scene for the image sequence, wherein each inter-image homography represents a projective transformation from one image in the sequence to another image in the sequence, wherein said generating comprises;

    estimating at least one Euclidean reconstruction at each of two or more focal lengths according to the set of inter-image homographies, wherein each Euclidean reconstruction comprises camera motion and camera intrinsic parameters at each frame of the image sequence and a plane normal for the image sequence; and

    selecting one of the Euclidean reconstructions that best fits the set of inter-image homographies as the Euclidean reconstruction for the image sequence.

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