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  1. SSMSパブリケーション
  2. Vol.03

Crack Monitoring Using A Digital Camera and an Image Total Station

http://hdl.handle.net/10173/1647
http://hdl.handle.net/10173/1647
2961110e-cf86-4e70-9375-d470c8e6676b
名前 / ファイル ライセンス アクション
SMS07-130.pdf SMS07-130.pdf (422.8 kB)
Item type 会議発表論文 / Conference Paper(1)
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

Jeong, Jong Hyeok

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Takagi, Masataka

× Takagi, Masataka

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
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
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