Optimization of illumination profiles in line-scan camera systems

Pasi Karjalainen (Corresponding Author), Timo Lappalainen

    Research output: Contribution to journalArticleScientificpeer-review

    1 Citation (Scopus)

    Abstract

    A method for the optimization of illumination in line-scan camera systems is proposed. By using this method it is possible to calculate the optimal positions and luminous intensities of the light sources to obtain the desired illuminance at a surface. The proposed method is especially suitable for producing uniform illumination on a line. The method can be used with several types of light source, because experimental general models can be used for the lamps. The method is based on the regularized least squares optimization. The performance of the method is evaluated by comparing the calculated and measured illuminances before and after the optimization.
    Original languageEnglish
    Pages (from-to)1301 - 1306
    Number of pages6
    JournalMeasurement Science and Technology
    Volume11
    Issue number9
    DOIs
    Publication statusPublished - 2000
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Illumination
    illuminance
    Lighting
    Camera
    Cameras
    illumination
    cameras
    optimization
    Light sources
    Optimization
    Line
    light sources
    profiles
    Electric lamps
    luminous intensity
    luminaires
    Least Squares
    Profile
    Calculate

    Keywords

    • illumination
    • image processing
    • cameras
    • scanners
    • optimization
    • machine vision
    • lines
    • wood
    • timber
    • analysis

    Cite this

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    title = "Optimization of illumination profiles in line-scan camera systems",
    abstract = "A method for the optimization of illumination in line-scan camera systems is proposed. By using this method it is possible to calculate the optimal positions and luminous intensities of the light sources to obtain the desired illuminance at a surface. The proposed method is especially suitable for producing uniform illumination on a line. The method can be used with several types of light source, because experimental general models can be used for the lamps. The method is based on the regularized least squares optimization. The performance of the method is evaluated by comparing the calculated and measured illuminances before and after the optimization.",
    keywords = "illumination, image processing, cameras, scanners, optimization, machine vision, lines, wood, timber, analysis",
    author = "Pasi Karjalainen and Timo Lappalainen",
    year = "2000",
    doi = "10.1088/0957-0233/11/9/307",
    language = "English",
    volume = "11",
    pages = "1301 -- 1306",
    journal = "Measurement Science and Technology",
    issn = "0957-0233",
    publisher = "Institute of Physics IOP",
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    }

    Optimization of illumination profiles in line-scan camera systems. / Karjalainen, Pasi (Corresponding Author); Lappalainen, Timo.

    In: Measurement Science and Technology, Vol. 11, No. 9, 2000, p. 1301 - 1306.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Optimization of illumination profiles in line-scan camera systems

    AU - Karjalainen, Pasi

    AU - Lappalainen, Timo

    PY - 2000

    Y1 - 2000

    N2 - A method for the optimization of illumination in line-scan camera systems is proposed. By using this method it is possible to calculate the optimal positions and luminous intensities of the light sources to obtain the desired illuminance at a surface. The proposed method is especially suitable for producing uniform illumination on a line. The method can be used with several types of light source, because experimental general models can be used for the lamps. The method is based on the regularized least squares optimization. The performance of the method is evaluated by comparing the calculated and measured illuminances before and after the optimization.

    AB - A method for the optimization of illumination in line-scan camera systems is proposed. By using this method it is possible to calculate the optimal positions and luminous intensities of the light sources to obtain the desired illuminance at a surface. The proposed method is especially suitable for producing uniform illumination on a line. The method can be used with several types of light source, because experimental general models can be used for the lamps. The method is based on the regularized least squares optimization. The performance of the method is evaluated by comparing the calculated and measured illuminances before and after the optimization.

    KW - illumination

    KW - image processing

    KW - cameras

    KW - scanners

    KW - optimization

    KW - machine vision

    KW - lines

    KW - wood

    KW - timber

    KW - analysis

    U2 - 10.1088/0957-0233/11/9/307

    DO - 10.1088/0957-0233/11/9/307

    M3 - Article

    VL - 11

    SP - 1301

    EP - 1306

    JO - Measurement Science and Technology

    JF - Measurement Science and Technology

    SN - 0957-0233

    IS - 9

    ER -