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Projective Translations and Affine Stereo Calibration

Andreas Ruf 1 Gabriela Csurka 1 Radu Horaud 1 
1 MOVI - Modeling, localization, recognition and interpretation in computer vision
GRAVIR - IMAG - Laboratoire d'informatique GRAphique, VIsion et Robotique de Grenoble, Inria Grenoble - Rhône-Alpes, CNRS - Centre National de la Recherche Scientifique : FR71
Abstract : This paper investigates the structure of projective translations-rigid translations expressed as homographies in projective space. A seven parameter representation is proposed, which explicitly represents the geometric entities constraining and defining the translation. A practical algebraic method for estimating these parameters is developed. It provides affine calibration of a stereo rig, determines the translation axis, and allows projective translations to be composed. The practical effectiveness of the calibration is evaluated on synthetic and real image data.
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Andreas Ruf, Gabriela Csurka, Radu Horaud. Projective Translations and Affine Stereo Calibration. IEEE Conference on Computer Vision and Pattern Recognition (CVPR '98), Jun 1998, Santa Barbara, United States. pp.475--481, ⟨10.1109/CVPR.1998.698648⟩. ⟨inria-00590101⟩



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