A Study on Image Diagnostic Technology for Bridge Inspection Using Ultra High Resolution Camera

• DOI: 10.5592/co/cetra.2018.828
• Publication Date: 2018-07-24T10:34:10Z
• Authors: Takahiro Minami; Makoto Fujiu; Jyunichi Takayama; Shinya Suda; Shuya Okumura
• Keywords: Visual inspection; Bridge (graph theory); Economic shortage; Automated X-ray inspection

In Japan, there are now approximately 730,000 road bridges, 2.0 m or longer. 2013, about 18% of these bridges had been in service for more than 50 years, which is considered the normal life a bridge, and it predicted that 10 43% them will have reached this age. Moreover, deformation by deterioration bridge structure has appeared those parts undergone emergency repairs, underwater exposed to harsh local environments. Under such circumstances, Ministry Land, Infrastructure, Transport, Tourism has, since 2014, mandated regular close visual inspections once every 5 years adopted policy extending lifetime bridges. That means replacing corrective with preventive maintenance order prolong existing However, carry out inspection, necessary install scaffold use inspection vehicle, costly laborious. It difficult government facing shortage financial resources human current continuously. Therefore, research, we propose image diagnostic technology using super high resolution camera inspect an enormous number considering efficiently By 100 million pixels, developed environment almost same as actual inspection. Some workers diagnosed crack concrete pier environment, usability tool was verified