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        <identifier>oai:kitami-it.repo.nii.ac.jp:00008159</identifier>
        <datestamp>2026-02-17T02:22:37Z</datestamp>
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        <jpcoar:jpcoar xmlns:datacite="https://schema.datacite.org/meta/kernel-4/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcndl="http://ndl.go.jp/dcndl/terms/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:jpcoar="https://github.com/JPCOAR/schema/blob/master/2.0/" xmlns:oaire="http://namespace.openaire.eu/schema/oaire/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rioxxterms="http://www.rioxx.net/schema/v2.0/rioxxterms/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="https://github.com/JPCOAR/schema/blob/master/2.0/" xsi:schemaLocation="https://github.com/JPCOAR/schema/blob/master/2.0/jpcoar_scm.xsd">
          <dc:title xml:lang="ja">瞬き波形を検出するための画像処理によるVDT作業時における瞬き回数の計測</dc:title>
          <dc:title xml:lang="en">Eye Blink Counter for VDT Workers Based on Image Processing Techniques Applied to Face Recognition and Eye Detection</dc:title>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="ja">阿部, 恒介</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="ja">董, 建</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="ja">早川, 吉彦</jpcoar:creatorName>
          </jpcoar:creator>
          <dcterms:accessRights rdf:resource="http://purl.org/coar/access_right/c_abf2">open access</dcterms:accessRights>
          <dc:rights>c2012 日本医用画像工学会</dc:rights>
          <jpcoar:subject subjectScheme="Other">瞬き</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">VDT作業</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">VDT症候群</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">テンプレートマッチング</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">顔認識</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">Eye blink</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">VDT work</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">VDT syndrome</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">Template matching</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">Face recognition</jpcoar:subject>
          <datacite:description descriptionType="Abstract">テクノストレス眼症いわゆるVDT症候群を引き起こす要因として，作業中におけ
る瞬き回数の減少がある．そこで，VDT作業中において，30fpsのwebカメラで
撮った画像から，顔検出・認識と追跡，眼の位置検出，瞬きの検出および瞬き波
形の描画を行うシステムを開発した．顔検出・認識にはOpen CVライブラリを利
用し，追跡には眉間パターンでテンプレートマッチングを行い，トラッキングし
た顔画像から眼の位置は2値化差分画像で得た．瞬きの検出には，フレーム間差
分，眼の開閉度の検出，虹彩の検出の3通りで行った．これらの方法で，瞬きの
瞬間，連続する瞬き，眼を瞑っている状態を画像の変化から測定した波形として
得た．各方法でこれらの観測が一致するロバストな瞬き計測システムを作ること
ができた．</datacite:description>
          <datacite:description descriptionType="Abstract">Visual display terminal (VDT) syndrome causes dry eyes and related
symptoms. In addition, the number of eye blinks is reduced in VDT
workers. We have therefore developed a real-time eye blink counter
system. This system employs face pattern recognition, eye-area
detection, and tracking using a template-matching method for eye blink
detection. The changes between successive frames in a movie captured by
a web camera (30 fps, 320 × 240 pixels) were recorded. We then applied
three different methods as image processing techniques for eye blink
detection: the subtraction of successive frames, eye open/closed status
detection by image scanning, and iris detection by template matching.
The results showed that comparable performance could be achieved using
all three methods. The system functioned well as a real-time eye blink
counter and may also prove to be useful as a sleepiness or catnap
detector, as well as find applications in
man-machine interfaces and visual axis analysis.</datacite:description>
          <dc:publisher>日本医用画像工学会</dc:publisher>
          <datacite:date dateType="Issued">2012-03</datacite:date>
          <dc:language>jpn</dc:language>
          <dc:type rdf:resource="http://purl.org/coar/resource_type/c_6501">journal article</dc:type>
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          <jpcoar:identifier identifierType="URI">https://kitami-it.repo.nii.ac.jp/records/8159</jpcoar:identifier>
          <jpcoar:relation>
            <jpcoar:relatedIdentifier identifierType="DOI">http://doi.org/10.11409/mit.30.65</jpcoar:relatedIdentifier>
          </jpcoar:relation>
          <jpcoar:sourceTitle xml:lang="en">Medical Imaging Technology</jpcoar:sourceTitle>
          <jpcoar:volume>30</jpcoar:volume>
          <jpcoar:issue>2</jpcoar:issue>
          <jpcoar:pageStart>65</jpcoar:pageStart>
          <jpcoar:pageEnd>72</jpcoar:pageEnd>
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            <jpcoar:extent>813.6 kB</jpcoar:extent>
            <datacite:date dateType="Available">2016-11-22</datacite:date>
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