Conference paper
Correcting for Perspective Distortion in Electroluminescence Images of Photovoltaic Panels
Department of Photonics Engineering, Technical University of Denmark1
Coding and Visual Communication, Department of Photonics Engineering, Technical University of Denmark2
Aalborg University3
Photovoltaic Materials and Systems, Department of Photonics Engineering, Technical University of Denmark4
With the significant growth in the number of photovoltaic (PV) installations and their size, regular PV system inspection has become a challenge. Aerial drone imaging, based on visual, thermographic, and more recently luminescence, can be viable solutions for PV inspection. However, to achieve effective detection and quantification of failure based on images acquired form Unmanned Aerial Vehicle, there is need for image quality enhancement and correction of distortions, inherent to the drone measurement process.
In this work we propose methods to automatically correct the perspective distortion in electroluminescent (EL) images of PV panels. We identified two main cases of perspective distortion: when the imaging plane is parallel to the panel plane or not, and propose methods to correct both. For both cases, theproposed method yields good results, as assessed by visual evaluation.
Language: | English |
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Publisher: | IEEE |
Year: | 2018 |
Pages: | 0433-0437 |
Proceedings: | 7th World Conference on Photovoltaic Energy Conversion |
ISBN: | 1538685299 , 1538685302 , 9781538685297 and 9781538685303 |
Types: | Conference paper |
DOI: | 10.1109/PVSC.2018.8547724 |
ORCIDs: | Mantel, Claire , Benatto, Gisele Alves dos Reis , Riedel, Nicholas , Thorsteinsson, Sune , Poulsen, Peter Behrensdorff and Forchhammer, Søren |
Aerial drone imaging Distortion Image edge detection Imaging Inspection Outdoor electroluminescence imaging PV inspection PV panels Perspective correction Photovoltaic systems Unmanned Aerial Vehicle Visualization autonomous aerial vehicles circuit analysis computing distortion drone measurement process effective detection electroluminescence electroluminescence images electroluminescent images failure analysis failure quantification image enhancement image quality enhancement imaging plane infrared imaging inspection panel plane perspective distortion photovoltaic installations photovoltaic panels regular PV system inspection remote sensing solar cell arrays visual luminescence