Vertical Dynamic Deflection Measurement in Concrete Beams with the Microsoft Kinect
The Microsoft Kinect is arguably the most popular RGB-D camera currently on the market, partially due to its low cost. It offers many advantages for the measurement of dynamic phenomena since it can directly measure three-dimensional coordinates of objects at video frame rate using a single sensor....
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2014-02-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/14/2/3293 |
| _version_ | 1818014795364827136 |
|---|---|
| author | Xiaojuan Qi Derek Lichti Mamdouh El-Badry Jacky Chow Kathleen Ang |
| author_facet | Xiaojuan Qi Derek Lichti Mamdouh El-Badry Jacky Chow Kathleen Ang |
| author_sort | Xiaojuan Qi |
| collection | DOAJ |
| description | The Microsoft Kinect is arguably the most popular RGB-D camera currently on the market, partially due to its low cost. It offers many advantages for the measurement of dynamic phenomena since it can directly measure three-dimensional coordinates of objects at video frame rate using a single sensor. This paper presents the results of an investigation into the development of a Microsoft Kinect-based system for measuring the deflection of reinforced concrete beams subjected to cyclic loads. New segmentation methods for object extraction from the Kinect’s depth imagery and vertical displacement reconstruction algorithms have been developed and implemented to reconstruct the time-dependent displacement of concrete beams tested in laboratory conditions. The results demonstrate that the amplitude and frequency of the vertical displacements can be reconstructed with submillimetre and milliHz-level precision and accuracy, respectively. |
| first_indexed | 2024-04-14T06:48:53Z |
| format | Article |
| id | doaj.art-c90dde5a0fb640128b013d14629a1b8b |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T06:48:53Z |
| publishDate | 2014-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-c90dde5a0fb640128b013d14629a1b8b2022-12-22T02:07:05ZengMDPI AGSensors1424-82202014-02-011423293330710.3390/s140203293s140203293Vertical Dynamic Deflection Measurement in Concrete Beams with the Microsoft KinectXiaojuan Qi0Derek Lichti1Mamdouh El-Badry2Jacky Chow3Kathleen Ang4Department of Geomatics Engineering, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, CanadaDepartment of Geomatics Engineering, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, CanadaDepartment of Civil Engineering, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, CanadaDepartment of Geomatics Engineering, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, CanadaDepartment of Geomatics Engineering, University of Calgary, 2500 University Drive N.W., Calgary, Alberta T2N 1N4, CanadaThe Microsoft Kinect is arguably the most popular RGB-D camera currently on the market, partially due to its low cost. It offers many advantages for the measurement of dynamic phenomena since it can directly measure three-dimensional coordinates of objects at video frame rate using a single sensor. This paper presents the results of an investigation into the development of a Microsoft Kinect-based system for measuring the deflection of reinforced concrete beams subjected to cyclic loads. New segmentation methods for object extraction from the Kinect’s depth imagery and vertical displacement reconstruction algorithms have been developed and implemented to reconstruct the time-dependent displacement of concrete beams tested in laboratory conditions. The results demonstrate that the amplitude and frequency of the vertical displacements can be reconstructed with submillimetre and milliHz-level precision and accuracy, respectively.http://www.mdpi.com/1424-8220/14/2/3293Microsoft Kinectquantization errorstructural deflection measurement |
| spellingShingle | Xiaojuan Qi Derek Lichti Mamdouh El-Badry Jacky Chow Kathleen Ang Vertical Dynamic Deflection Measurement in Concrete Beams with the Microsoft Kinect Sensors Microsoft Kinect quantization error structural deflection measurement |
| title | Vertical Dynamic Deflection Measurement in Concrete Beams with the Microsoft Kinect |
| title_full | Vertical Dynamic Deflection Measurement in Concrete Beams with the Microsoft Kinect |
| title_fullStr | Vertical Dynamic Deflection Measurement in Concrete Beams with the Microsoft Kinect |
| title_full_unstemmed | Vertical Dynamic Deflection Measurement in Concrete Beams with the Microsoft Kinect |
| title_short | Vertical Dynamic Deflection Measurement in Concrete Beams with the Microsoft Kinect |
| title_sort | vertical dynamic deflection measurement in concrete beams with the microsoft kinect |
| topic | Microsoft Kinect quantization error structural deflection measurement |
| url | http://www.mdpi.com/1424-8220/14/2/3293 |
| work_keys_str_mv | AT xiaojuanqi verticaldynamicdeflectionmeasurementinconcretebeamswiththemicrosoftkinect AT dereklichti verticaldynamicdeflectionmeasurementinconcretebeamswiththemicrosoftkinect AT mamdouhelbadry verticaldynamicdeflectionmeasurementinconcretebeamswiththemicrosoftkinect AT jackychow verticaldynamicdeflectionmeasurementinconcretebeamswiththemicrosoftkinect AT kathleenang verticaldynamicdeflectionmeasurementinconcretebeamswiththemicrosoftkinect |