Camera calibration using symmetric objects

    Authors

    X. C. Cao;H. Foroosh

    Comments

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    Abbreviated Journal Title

    IEEE Trans. Image Process.

    Keywords

    camera calibration; homography; stereo reconstruction; RECONSTRUCTION; REVOLUTION; SURFACES; Computer Science, Artificial Intelligence; Engineering, Electrical &; Electronic

    Abstract

    This paper proposes a novel method for camera calibration using images of a mirror symmetric object. Assuming unit aspect ratio and zero skew, we show that interimage homographies can be expressed as a function of only the principal point. By minimizing symmetric transfer errors, we thus obtain an accurate solution for the camera parameters. We also extend our approach to a calibration technique using images of a I-D object with a fixed pivoting point. Unlike existing methods that rely on orthogonality or pole-polar relationship, our approach utilizes new interimage constraints and does not require knowledge of the 3-D coordinates of feature points. To demonstrate the effectiveness of the approach, we present results for both synthetic and real images.

    Journal Title

    Ieee Transactions on Image Processing

    Volume

    15

    Issue/Number

    11

    Publication Date

    1-1-2006

    Document Type

    Article

    Language

    English

    First Page

    3614

    Last Page

    3619

    WOS Identifier

    WOS:000241391100034

    ISSN

    1057-7149

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