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Electroluminescence imaging of PV devices: camera calibration and image correction

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conference contribution
posted on 17.10.2016, 13:55 by Karl Bedrich, Martin BlissMartin Bliss, Tom BettsTom Betts, Ralph Gottschalg
A method for the correction of electroluminescence (EL) images of PV devices is presented. This includes a camera calibration based on focus, dark current, flat field and lens distortion as well as artefact removal, including single-time-effects and erroneous pixels. Image correction allows EL images taken with different systems or perspectives to be normalized and used for quantitative analysis. Results include an image correction of a 4x9 cell module, imaged in different perspective positions. After correction, intensity difference and positional error were found to be less than 1%, respective 2%.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

IEEE PVSC

Volume

43

Citation

BEDRICH, K. ... et al, 2016. Electroluminescence imaging of PV devices: camera calibration and image correction. 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 5th-10th June 2016, Portland, OR, USA

Publisher

© IEEE

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2016

Notes

© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Language

en

Location

Portland

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