Development of a non-intrusive and efficient flow monitoring technique : The space-time image Velocimetry (STIV)
International journal of river basin management 5 巻 2 号
105-114 頁
2007 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Development of a non-intrusive and efficient flow monitoring technique : The space-time image Velocimetry (STIV)
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| 作成者 |
Fujita Ichiro
Watanabe Hideki
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| 収録物名 |
International journal of river basin management
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| 巻 | 5 |
| 号 | 2 |
| 開始ページ | 105 |
| 終了ページ | 114 |
| 抄録 |
A novel image analysis technique for measuring river surface flow is proposed. When we assume that the brightness distribution of river surface image is convected with the surface velocity, a space-time image for a searching line set parallel to the main flow would indicate velocity information as its image orientation. The new technique, the space-time image velocimetry (STIV), is capable to measure the orientation angle of the pattern using the eigenvalue analysis of the local space-time image. The performance of STIV is compared with the other image analysis technique, the large-scale particle image velocimetry (LSPIV), previously proposed by the authors and it is shown that STIV is an alternative image analysis method for measuring streamwise velocity distributions efficiently.
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| 著者キーワード |
River flow measurement
Image analysis
Space-time image velocimetry (STIV)
Large-scale image velocimetry (LSPIV)
Real time measurement
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| NDC分類 |
建設工学・土木工学 [ 510 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
International Association of Hydraulic Engineering and Research
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| 発行日 | 2007 |
| 権利情報 |
(c) 2007 IAHR, INBO & IAHS
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| 出版タイプ | Author’s Original（十分な品質であるとして、著者から正式な査読に提出される版） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 1571-5124
[DOI] 10.1080/15715124.2007.9635310
[NCID] AA12074451
[DOI] http://dx.doi.org/10.1080/15715124.2007.9635310
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