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2重しきい値法を用いた超音波心断層像からの心内膜輪郭線自動抽出とその信頼性の検討
http://hdl.handle.net/10076/11139
http://hdl.handle.net/10076/11139b799c718-9fab-456e-a841-cf8722225530
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2010-06-01 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | 2重しきい値法を用いた超音波心断層像からの心内膜輪郭線自動抽出とその信頼性の検討 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 2重しきい値法 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 超音波画像 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 輪郭自動抽出 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Double Thresholding Method | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Echocardiogram | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Automatic Exraction | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
大山, 航
× 大山, 航× 若林, 哲史× 木村, 文隆× 鶴岡, 信治× 関岡, 清次 |
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著者別名 |
Ohyama, Wataru
× Ohyama, Wataru× Wakabayashi, Tetsushi× Kimura, Fumitaka× Tsuruoka, Shinji× Sekioka, Kiyotsugu |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Methods for automatic extraction of left ventricular endocardium in echocardiograms have been proposed, which are required to quantitatively evaluate the functional performance of the left ventricle. In this pa-per, we propose a new automatic extraction method based on double thresholding for echocardiograms, and evaluate the effectiveness and the accuracy. B-mode echocardiograms are first binarized with a threshold determined by the discriminant analysis for the gray level histogram. Then the binary images are contracted n times to remove small regions and to disconnect the region of cardiac cavity from the other false regions. Among the obtained regions which corresponds to the cardiac cavity is selected and dilated 2n times to create a mask which restricts the region of the second thresholding operation. The size and the location of the cardiac cavity in the preceding frame are utilized to select the corresponding region. The masked image of each frame is binarized in the restricted area in the same way as in the first thresholding operation. The evaluation test is carried out using the scatter diagram of radius of contours extracted by two observers and automatic extraction method. These results showed that the accuracy of the extracted contours was favorably compared to the accuracy of manually traced contours. | |||||
書誌情報 |
電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society 巻 121, 号 9, p. 1448-1456, 発行日 2001-09-01 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0385-4221 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN10065950 | |||||
権利 | ||||||
権利情報 | 電気学会ホームページ | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
日本十進分類法 | ||||||
主題Scheme | NDC | |||||
主題 | 007 | |||||
その他のタイトル | ||||||
Automatic extraction of left ventricular endocardium in echocardiograms using double thresholding method | ||||||
出版者 | ||||||
出版者 | 電気学会 | |||||
関係URI | ||||||
関連名称 | http://www.journalarchive.jst.go.jp/japanese/jnlabstract_ja.php?cdjournal=ieejeiss1987&cdvol=121&noissue=9&startpage=1448 | |||||
関係URI | ||||||
関連名称 | http://www.iee.or.jp/ | |||||
ノート | ||||||
出版者版電子ジャーナルあり | ||||||
資源タイプ(三重大) | ||||||
Journal Article / 学術雑誌論文 |