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Infrared image of the intercell busbar region is used to perform short circuit detection. To cope with the high thermal background, a two\u2010level short circuit detection method is designed. Firstly, with background subtraction, high intensity short circuit electrodes, as well as the background, are removed, and normal working electrodes are preserved. In the second stage, suspicious short circuit areas are sifted out by normal electrode detecting and texture period estimation. Gaussian difference filter (DoG) which is based on the human visual system is improved to match the target gray distribution. A comparative experiment indicates that the proposed orthogonal DoG outperforms the original DoG and top\u2010hat in the accuracy of normal electrode detection. The two\u2010level detection method in this paper is applied in a copper electrolysis plant and exhibits superiority in locating short circuits and avoiding miss detection.<\/jats:p>","DOI":"10.1155\/2021\/8824768","type":"journal-article","created":{"date-parts":[[2021,1,29]],"date-time":"2021-01-29T19:20:08Z","timestamp":1611948008000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Short Circuit Fault Detection against High Thermal Background Using a Two\u2010Level Scheme Based on DoG Filter"],"prefix":"10.1155","volume":"2021","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3965-7806","authenticated-orcid":false,"given":"Xin","family":"Li","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6811-3429","authenticated-orcid":false,"given":"Yonggang","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0063-0363","authenticated-orcid":false,"given":"Hongqiu","family":"Zhu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3903-1034","authenticated-orcid":false,"given":"Renchao","family":"Wu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2778-0022","authenticated-orcid":false,"given":"Can","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2021,1,29]]},"reference":[{"key":"e_1_2_9_1_2","doi-asserted-by":"publisher","DOI":"10.1109\/tia.2009.2023357"},{"key":"e_1_2_9_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.infrared.2018.06.006"},{"key":"e_1_2_9_3_2","doi-asserted-by":"publisher","DOI":"10.1109\/tieci.1971.230782"},{"key":"e_1_2_9_4_2","first-page":"2","article-title":"IR-based system for short-circuit detection during copper electrorefining process","volume":"3652","author":"Esa M.","year":"1999","journal-title":"Proceedings of SPIE-The International Society for Optical Engineering"},{"key":"e_1_2_9_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.optlastec.2016.03.017"},{"key":"e_1_2_9_6_2","first-page":"537","article-title":"Real-time novelty detection in video using background subtraction techniques: state of the art a practical review","author":"Morris G.","year":"2014","journal-title":"IEEE International Conference on Systems, Man and Cybernetics"},{"key":"e_1_2_9_7_2","doi-asserted-by":"publisher","DOI":"10.1007\/s10762-009-9518-2"},{"key":"e_1_2_9_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.patcog.2009.12.023"},{"key":"e_1_2_9_9_2","doi-asserted-by":"publisher","DOI":"10.1049\/el:20092206"},{"key":"e_1_2_9_10_2","doi-asserted-by":"publisher","DOI":"10.1109\/tia.2006.872933"},{"key":"e_1_2_9_11_2","doi-asserted-by":"publisher","DOI":"10.1109\/tia.2013.2273752"},{"key":"e_1_2_9_12_2","doi-asserted-by":"crossref","unstructured":"WiechmannE. 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