2012 Fiscal Year Final Research Report
Development of express assessment system of road surface with stereo image processing and GPS
| Project/Area Number |
23760404
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Civil engineering materials/Construction/Construction management
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SU Di 東京大学, 大学院・工学系研究科, 特任講師 (40535796)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 維持・管理 / 点検・診断 / 高速化・効率化 |
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| Research Abstract |
This research developed a stereo camera system for road surface assessment. In this study, first the static photos taken by a calibrated stereo camera system are utilized to reconstruct the three-dimensional coordinates of targets in the pavement. Subsequently to align the various coordinates obtained from different view meshes, one modified Iterative Closet Point method is proposed by affording the appropriate initial conditions and image correlation method. Several field tests have been carried out to evaluate the capabilities of this system. After succeeding to align all the measured coordinates, this system can offer not only the accurate information of local deficiency such as the patching, crack or pothole, but also global fluctuation in a long distance range of the road surface.
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