A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A vision-based system for remote sensing of bridge displacement
This study proposed the vision-based system which remotely measures dynamic displacement of bridges in real-time using digital image processing techniques. This system has a number of innovative features including a high resolution in dynamic measurement, remote sensing, cost-effectiveness, real-time measurement and visualization, ease of installation and operation and no electro-magnetic interference. The digital video camera combined with a telescopic device takes a motion picture of the target installed on a measurement location. Meanwhile, the displacement of the target is calculated using an image processing technique, which requires a target recognition algorithm, projection of the captured image, and calculation of the actual displacement using target geometry and number of pixels moved. For the purpose of verification, a laboratory test using shaking table test and field application on a bridge with open-box girders were carried out. The test results gave sufficient dynamic resolution in frequency as well as the amplitude.
A vision-based system for remote sensing of bridge displacement
This study proposed the vision-based system which remotely measures dynamic displacement of bridges in real-time using digital image processing techniques. This system has a number of innovative features including a high resolution in dynamic measurement, remote sensing, cost-effectiveness, real-time measurement and visualization, ease of installation and operation and no electro-magnetic interference. The digital video camera combined with a telescopic device takes a motion picture of the target installed on a measurement location. Meanwhile, the displacement of the target is calculated using an image processing technique, which requires a target recognition algorithm, projection of the captured image, and calculation of the actual displacement using target geometry and number of pixels moved. For the purpose of verification, a laboratory test using shaking table test and field application on a bridge with open-box girders were carried out. The test results gave sufficient dynamic resolution in frequency as well as the amplitude.
A vision-based system for remote sensing of bridge displacement
Ein Abbildungssystem zur Fernmessung von Brückenverschiebungen
Lee, J.J. (author) / Shinozuka, M. (author)
NDT&E International ; 39 ; 425-431
2006
7 Seiten, 8 Bilder, 13 Quellen
Article (Journal)
English
Remote Sensing of Bridge Displacement Using Digital Image Processing Techniques
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