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Crack Monitoring Using A Digital Camera and an Image Total Station
http://hdl.handle.net/10173/1647
http://hdl.handle.net/10173/16472961110e-cf86-4e70-9375-d470c8e6676b
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
SMS07-130.pdf (422.8 kB)
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| Item type | 会議発表論文 / Conference Paper(1) | |||||||||
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| 公開日 | 2018-02-06 | |||||||||
| タイトル | ||||||||||
| タイトル | Crack Monitoring Using A Digital Camera and an Image Total Station | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Close range monitoring | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | GIS | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Spatial database | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||||||
| 資源タイプ | conference paper | |||||||||
| 著者 |
Jeong, Jong Hyeok
× Jeong, Jong Hyeok
× Takagi, Masataka
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| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | There are many bridges in Japan due to geographic characteristic. Japanese government spends much budget for the maintenance of them. If the crack monitoring of bridges is possible, maintenance cycle of bridges can be expected with high accuracy. Therefore accurate maintenance cycle of bridge structures can be calculated based on the crack monitoring data. Kochi University of Technology is developing crack monitoring system using an eight mega pixel SLR digital camera. To survey cracks on a bridge structure, it is necessary to attach control points on the bridge structure. In some cases, it may be impossible to attach control points, if bridge structure height is too high. An image total station was used to solve the problem because image total station can acquire coordinate of a target with an image which describes the measured point. The images which have measured positions were used as control points for the exterior orientation of the digital camera. The corresponding points of image control points in stereo images were matched by least square matching method. The space intersection of the stereo image to calculate three dimensional coordinates of cracks was carried out by the least square matching. The accuracy of three dimensional measurement was evaluated by the image total station measurement. Millimeter accuracy could be obtained in the three dimensional crack measurement using the digital camera and image total station. | |||||||||
| 書誌情報 |
Society for Social Management Systems Internet Journal 巻 3, 号 1, 発行日 2007-03 |
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| ISSN | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 2432-552X | |||||||||
| 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 | |||||||||
| 出版者 | ||||||||||
| 出版者 | Society for Social Management Systems | |||||||||
