Field-dependent distortion coefficient and backward mapping for distortion correction of singlet lens cameras

Yupeng Zhang, Toshitsugu Ueda

    Research output: Contribution to journalArticle

    11 Citations (Scopus)

    Abstract

    This paper introduces approaches to deal with distortion created by a singlet lens camera. Due to the inherent optical defect of singlet lenses, considerable lens aberrations will appear in the resulting image, especially at high field angles. Among the wellknown five monochromatic aberrations and two chromatic aberrations, distortion and blurring are the most obvious aberrations for the designed singlet lens. In this paper, we deal with two techniques for distortion correction: field-dependent distortion coefficient and backward mapping method. The former will produce more accurate correction than obtained using third-order coefficient and constant coefficients. The latter does not need additional interpolation process to fill up pixel vacancies and higher precision of pixel values can be obtained compared with our previous forward mapping method. Simulation results indicate the superiority of the proposed two techniques.

    Original languageEnglish
    Pages (from-to)203-210
    Number of pages8
    JournalIEEJ Transactions on Electrical and Electronic Engineering
    Volume5
    Issue number2
    DOIs
    Publication statusPublished - 2010 Mar

    Keywords

    • Backward mapping
    • Distortion correction
    • Field-dependent distortion coefficient
    • Singlet lens

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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