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Title: Electroluminescence imaging of PV devices: camera calibration and image correction
Authors: Bedrich, Karl G.
Bliss, Martin
Betts, Thomas R.
Gottschalg, Ralph
Issue Date: 2016
Publisher: © IEEE
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
Abstract: 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%.
Description: © 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.
Version: Accepted for publication
URI: https://dspace.lboro.ac.uk/2134/22893
Publisher Link: http://ieeexplore.ieee.org/servlet/opac?punumber=1000561
Appears in Collections:Conference Papers and Presentations (Mechanical, Electrical and Manufacturing Engineering)

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