{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,28]],"date-time":"2025-10-28T02:43:14Z","timestamp":1761619394032,"version":"3.37.3"},"reference-count":15,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2017,5,21]],"date-time":"2017-05-21T00:00:00Z","timestamp":1495324800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100002560","name":"Soonchunhyang University","doi-asserted-by":"publisher","award":["20160223"],"award-info":[{"award-number":["20160223"]}],"id":[{"id":"10.13039\/501100002560","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["NRF\u20102016R1C1B1016492"],"award-info":[{"award-number":["NRF\u20102016R1C1B1016492"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003621","name":"Ministry of Science, ICT and Future Planning","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003621","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Skin Research and Technology"],"published-print":{"date-parts":[[2017,11]]},"abstract":"Background\/Purpose<\/jats:title>The visual scoring method has been used as a subjective evaluation of pigmentary skin disorders. Severity of pigmentary skin disease, especially melasma, is evaluated using a visual scoring method, the MASI<\/jats:styled-content> (melasma area severity index). This study differentiates between epidermal and dermal pigmented disease. The study was undertaken to determine methods to quantitatively measure the severity of pigmentary skin disorders under ultraviolet illumination.<\/jats:p><\/jats:sec>Methods<\/jats:title>The optical imaging system consists of illumination (white LED<\/jats:styled-content>, UV<\/jats:styled-content>\u2010A lamp) and image acquisition (DSLR<\/jats:styled-content> camera, air cooling CMOS CCD<\/jats:styled-content> camera). Each camera is equipped with a polarizing filter to remove glare. To analyze images of visible and UV<\/jats:styled-content> light, images are divided into frontal, cheek, and chin regions of melasma patients. Each image must undergo image processing. To reduce the curvature error in facial contours, a gradient mask is used.<\/jats:p><\/jats:sec>Results<\/jats:title>The new method of segmentation of front and lateral facial images is more objective for face\u2010area\u2010measurement than the MASI<\/jats:styled-content> score. Image analysis of darkness and homogeneity is adequate to quantify the conventional MASI<\/jats:styled-content> score. Under visible light, active lesion margins appear in both epidermal and dermal melanin, whereas melanin is found in the epidermis under UV<\/jats:styled-content> light.<\/jats:p><\/jats:sec>Conclusion<\/jats:title>This study objectively analyzes severity of melasma and attempts to develop new methods of image analysis with ultraviolet optical imaging equipment. Based on the results of this study, our optical imaging system could be used as a valuable tool to assess the severity of pigmentary skin disease.<\/jats:p><\/jats:sec>","DOI":"10.1111\/srt.12372","type":"journal-article","created":{"date-parts":[[2017,5,23]],"date-time":"2017-05-23T22:49:48Z","timestamp":1495579788000},"page":"563-572","source":"Crossref","is-referenced-by-count":5,"title":["Development of a quantitative assessment method of pigmentary skin disease using ultraviolet optical imaging"],"prefix":"10.1111","volume":"23","author":[{"given":"Onseok","family":"Lee","sequence":"first","affiliation":[{"name":"Department of Medical IT Engineering College of Medical Sciences Soonchunhyang University Asan City Chungnam South Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sunup","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Research & Development Medical Device Development Center OSONG Medical Innovation Foundation Cheongju City Chungbuk South Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jaeyoung","family":"Kim","sequence":"additional","affiliation":[{"name":"Research Institute for Skin Image College of Medicine Korea University Seoul South Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1510-3067","authenticated-orcid":false,"given":"Chilhwan","family":"Oh","sequence":"additional","affiliation":[{"name":"Research Institute for Skin Image College of Medicine Korea University Seoul South Korea"},{"name":"Department of Dermatology Korea University Guro Hospital Korea University College of Medicine Seoul South Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2017,5,21]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"crossref","unstructured":"BaeY JungB.Digital photographic imaging system for the evaluation of various facial skin lesions. 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