Calibration of Ultra-Wide Fisheye Lens Cameras by Eigenvalue Minimization

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Author(s)

Abstract

We present a new technique for calibrating ultra-wide fisheye lens cameras by imposing the constraint that collinear points be rectified to be collinear, parallel lines to be parallel, and orthogonal lines to be orthogonal. Exploiting the fact that line fitting reduces to an eigenvalue problem, we do a rigorous perturbation analysis to obtain a Levenberg-Marquardt procedure for the optimization. Doing experiments, we point out that spurious solutions exist if collinearity and parallelism alone are imposed. Our technique has many desirable properties. For example, no metric information is required about the reference pattern or the camera position, and separate stripe patterns can be displayed on a video screen to generate a virtual grid, eliminating the grid point extraction processing.

Journal

  • Memoirs of the Faculty of Engineering, Okayama University

    Memoirs of the Faculty of Engineering, Okayama University (46), 10-20, 2012-01

    Faculty of Engineering, Okayama University

Codes

  • NII Article ID (NAID)
    80022451621
  • NII NACSIS-CAT ID (NCID)
    AA12014085
  • Text Lang
    ENG
  • Article Type
    departmental bulletin paper
  • ISSN
    1349-6115
  • Data Source
    IR 
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