SNR Study of Outdoor Electroluminescence Images under High Sun Irradiation

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    Abstract

    Electroluminescence (EL) imaging inspections of PV power plants can bring a huge improvement in accuracy. The use of InGaAs camera will also make such inspections fast, but the restriction to acquire the images during dusk or evening is a limitation. Performing lock-in EL is a way to go for daylight EL. This paper proposes an extension of the SNR50 quality measure to estimate the quality of a stack of N images and evaluates the impact of some factors over the measured and visual quality of images acquired with InGaAs sensors. The factors analyzed are the characteristics of the noise in the acquired images, the influence of the sun variations and the averaging over multiple acquired images.
    Original languageEnglish
    Title of host publicationProceedings of 7th World Conference on Photovoltaic Energy Conversion
    PublisherIEEE
    Publication date2018
    Pages3285-3289
    ISBN (Print)9781538685297
    DOIs
    Publication statusPublished - 2018
    Event7th World Conference on Photovoltaic Energy Conversion - Hilton Waikoloa Village Resort, Waikoloa, United States
    Duration: 10 Jun 201815 Jun 2018
    Conference number: WCPEC-7

    Conference

    Conference7th World Conference on Photovoltaic Energy Conversion
    NumberWCPEC-7
    LocationHilton Waikoloa Village Resort
    Country/TerritoryUnited States
    CityWaikoloa
    Period10/06/201815/06/2018

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