Metric calibration of a stereo rig

  • Authors:
  • A. Zisserman;P. A. Beardsley;I. D. Reid

  • Affiliations:
  • -;-;-

  • Venue:
  • VSR '95 Proceedings of the IEEE Workshop on Representation of Visual Scenes
  • Year:
  • 1995

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Abstract

Describes a method to determine affine and metric calibration for a stereo rig. The method does not involve the use of calibration objects or special motions, but simply a single general motion of the rig with fixed parameters (i.e. camera parameters and relative orientation of the camera pair). The novel aspects of this work are: first, relating the distinguished objects of Euclidean geometry to fixed entities of a Euclidean transformation matrix; second, showing that these fixed entities are accessible from the conjugate Euclidean transformation arising from the projective transformation of the structure under a motion of the fixed stereo rig; and third, a robust and automatic implementation of the method. Results are included of affine and metric calibration and structure recovery using images of real scenes.