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ID 13687
Eprint ID
13687
フルテキストURL
108_65.pdf 799 KB
タイトル(別表記)
Pathogenesis of nystagmus ⑵ Measuring eye movements with video image processing technique
著者
岡山 英樹 岡山大学医学部眼科学教室
抄録
A high speed video system was compared with a conventional video system for measuring saccadic eye movements to evaluate temporal and spatial profiles of these measurements. Video image processing techniques are used to determine the pupil center, and this consequently provided a spatial resolution better than that of one diode of a charge-coupled device (CCD). Although the spatial resolution of both systems is influenced by pupil size and intensity of illumination, spatial resolution in practice is equal to 0.1 to 0.2 degree. Compared to the conventional video system, the high speed video system with a video frame rate of 1000 frames per second offers a marked improvement in temporal resolution for evaluating saccadie eye movements. Each eye being illuminated by an infrared light source with nothing attached to the eye, this video system measurement allows the subject to fixate and follow an object of regard without being disturbed. Therefore, the high speed video recordings and processing techniques have proved to be useful method for analyzing saccadic eye movement.
キーワード
眼球運動計測
高速ビデオシステム
画像処理
備考
原著
発行日
1996-06-29
出版物タイトル
岡山医学会雑誌
出版物タイトル(別表記)
Journal of Okayama Medical Association
108巻
3-6号
出版者
岡山医学会
出版者(別表記)
Okayama Medical Association
開始ページ
65
終了ページ
69
ISSN
0030-1558
NCID
AN00032489
資料タイプ
学術雑誌論文
オフィシャル URL
https://www.jstage.jst.go.jp/article/joma1947/108/3-6/108_3-6_65/_article/-char/ja/
関連URL
http://www.okayama-u.ac.jp/user/oma/
言語
日本語
著作権者
岡山医学会
論文のバージョン
publisher
査読
有り
Eprints Journal Name
joma