Journal of Mathematical Imaging and Vision

, Volume 28, Issue 2, pp 135–149 | Cite as

Conic Geometry and Autocalibration from Two Images

  • José I. RondaEmail author
  • Antonio Valdés


We show how the classical theory of projective conics provides new insights and results on the problem of 3D reconstruction from two images taken with uncalibrated cameras. The close relationship between Kruppa equations and Poncelet’s Porism is investigated, leading, in particular, to a closed-form geometrically meaningful parameterization of the set of Euclidean reconstructions compatible with two images taken with cameras with constant intrinsic parameters and known pixel shape. An experiment with real images, showing the applicability of the method, is included.


Camera autocalibration Conic geometry Kruppa configuration Poncelet’s Porism 


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Grupo de Tratamiento de ImágenesUniversidad Politécnica de MadridMadridSpain
  2. 2.Departamento de Geometría y TopologíaUniversidad Complutense de MadridMadridSpain

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