Improved extension of depth-of-field performance by apodized wavefront coding

Takafumi Tsukasaki, Shinichi Komatsu

    Research output: Contribution to journalArticle

    Abstract

    Wavefront coding (WFC) is a popular technique for extending the depth of field (DOF), where the DOF is extended by the phase modulation of the pupil function using a phase mask and digital processing using a deconvolution filter. We previously proposed an apodized WFC system with a Gaussian aperture that extends the DOF while suppressing artifacts in the reconstructed image. In this study, the influence of aberrations on the proposed WFC system was examined in detail by computer simulation. Then, the image quality was experimentally examined to confirm the effectiveness of the apodized WFC system. In addition, we proposed a new type of aperture, i.e., a generalized Gaussian aperture, to prevent the significant reduction in transmitted light intensity due to apodization, the effectiveness of which was confirmed by computer simulation.

    Original languageEnglish
    Article number08RD03
    JournalJapanese Journal of Applied Physics
    Volume55
    Issue number8
    DOIs
    Publication statusPublished - 2016 Aug 1

    Fingerprint

    Wavefronts
    coding
    apertures
    computerized simulation
    apodization
    Phase modulation
    Computer simulation
    Deconvolution
    pupils
    Digital signal processing
    Aberrations
    phase modulation
    Image quality
    luminous intensity
    artifacts
    Masks
    aberration
    masks
    filters

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

    Cite this

    Improved extension of depth-of-field performance by apodized wavefront coding. / Tsukasaki, Takafumi; Komatsu, Shinichi.

    In: Japanese Journal of Applied Physics, Vol. 55, No. 8, 08RD03, 01.08.2016.

    Research output: Contribution to journalArticle

    @article{d5e06b348cd04d9fb96f7b3882b5f211,
    title = "Improved extension of depth-of-field performance by apodized wavefront coding",
    abstract = "Wavefront coding (WFC) is a popular technique for extending the depth of field (DOF), where the DOF is extended by the phase modulation of the pupil function using a phase mask and digital processing using a deconvolution filter. We previously proposed an apodized WFC system with a Gaussian aperture that extends the DOF while suppressing artifacts in the reconstructed image. In this study, the influence of aberrations on the proposed WFC system was examined in detail by computer simulation. Then, the image quality was experimentally examined to confirm the effectiveness of the apodized WFC system. In addition, we proposed a new type of aperture, i.e., a generalized Gaussian aperture, to prevent the significant reduction in transmitted light intensity due to apodization, the effectiveness of which was confirmed by computer simulation.",
    author = "Takafumi Tsukasaki and Shinichi Komatsu",
    year = "2016",
    month = "8",
    day = "1",
    doi = "10.7567/JJAP.55.08RD03",
    language = "English",
    volume = "55",
    journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",
    issn = "0021-4922",
    publisher = "Japan Society of Applied Physics",
    number = "8",

    }

    TY - JOUR

    T1 - Improved extension of depth-of-field performance by apodized wavefront coding

    AU - Tsukasaki, Takafumi

    AU - Komatsu, Shinichi

    PY - 2016/8/1

    Y1 - 2016/8/1

    N2 - Wavefront coding (WFC) is a popular technique for extending the depth of field (DOF), where the DOF is extended by the phase modulation of the pupil function using a phase mask and digital processing using a deconvolution filter. We previously proposed an apodized WFC system with a Gaussian aperture that extends the DOF while suppressing artifacts in the reconstructed image. In this study, the influence of aberrations on the proposed WFC system was examined in detail by computer simulation. Then, the image quality was experimentally examined to confirm the effectiveness of the apodized WFC system. In addition, we proposed a new type of aperture, i.e., a generalized Gaussian aperture, to prevent the significant reduction in transmitted light intensity due to apodization, the effectiveness of which was confirmed by computer simulation.

    AB - Wavefront coding (WFC) is a popular technique for extending the depth of field (DOF), where the DOF is extended by the phase modulation of the pupil function using a phase mask and digital processing using a deconvolution filter. We previously proposed an apodized WFC system with a Gaussian aperture that extends the DOF while suppressing artifacts in the reconstructed image. In this study, the influence of aberrations on the proposed WFC system was examined in detail by computer simulation. Then, the image quality was experimentally examined to confirm the effectiveness of the apodized WFC system. In addition, we proposed a new type of aperture, i.e., a generalized Gaussian aperture, to prevent the significant reduction in transmitted light intensity due to apodization, the effectiveness of which was confirmed by computer simulation.

    UR - http://www.scopus.com/inward/record.url?scp=84989344955&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84989344955&partnerID=8YFLogxK

    U2 - 10.7567/JJAP.55.08RD03

    DO - 10.7567/JJAP.55.08RD03

    M3 - Article

    AN - SCOPUS:84989344955

    VL - 55

    JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

    JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

    SN - 0021-4922

    IS - 8

    M1 - 08RD03

    ER -