Automatic Finger Interruption Detection in Electroluminescence Images of Multicrystalline Solar Cells

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Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/106372

Title:	Automatic Finger Interruption Detection in Electroluminescence Images of Multicrystalline Solar Cells
Authors:	曾定章;Tseng, Din-Chang;Chou, Chang-Min;Liu, Yu-Shuo
Contributors:	資訊電機學院資訊工程學系
Keywords:	Automation;Centroids;Classification;Clustering;Clusters;Electroluminescence;Embedding;Engineering;Feature extraction;Fingers;Fingers & toes;Image detection;Interruption;Photovoltaic cells;Silicon wafers;Solar cells;Solar energy;Spectra;Thin films
Date:	2015-01-01
Issue Date:	2026-04-23 13:19:02 (UTC+8)
Publisher:	Hindawi Publishing Corporation;Cairo, Egypt: Hindawi Publishing Corporation
Abstract:	摘要： This study provides an automatic method for detecting finger interruptions in electroluminescence (EL) images of multicrystalline solar cells. The proposed method is a supervised classification method. We obtain regions of interest (ROI) by separating the EL image to several regions. The fingers within each ROI are candidates for defect detection. We horizontally scan each ROI region and extract features from each finger pixel. In the training stage, we record a set of features which are extracted from interrupted fingers and noninterrupted fingers. These features are represented as points in a spectral embedding space produced by spectral clustering method. These points will be classified into two clusters: interrupted fingers and noninterrupted fingers. In the classification stage, we firstly detect the position of fingers in an EL image and obtain features from each finger. The set of features in each finger combined with known features in the training stage will be represented as points in the spectral embedding space and then will be classified to the cluster with nearer cluster centroid of known features. Experimental results show that the proposed method can effectively detect finger interruptions on a set of EL images of various solar cells. 出版者： Cairo, Egypt: Hindawi Publishing Corporation 出版日期： 2015-01-01 出處： Mathematical Problems in Engineering, 2015-01, Vol.2015 (2015), p.1-12 資源來源： Publicly available content database 版權： Copyright © 2015 Din-Chang Tseng et al. 版權： Copyright © 2015 Din-Chang Tseng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 識別號： ISSN: 1024-123X 識別號： ISSN: 1026-7077 識別號： ISSN: 1563-5147 識別號： EISSN: 1563-5147 識別號： DOI: 10.1155/2015/879675
Appears in Collections:	[Department of Computer Science and information Engineering] journal & Dissertation

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