Our technical advisor, Associate Professor Tomonori Nagayama, gave a lecture at the Construction Technology Forum held at Sunshine City Exhibition Hall on 25 November 2021.
The title of the lecture was "Development of quasi-real-time wide-area road surface crack rate evaluation technology using in-vehicle cameras", and he introduced the contents of the three-way collaboration between the University of Tokyo, Nichireki Corporation and our company under the matching project of the Kanto Regional Development Bureau of the Ministry of Land, Infrastructure and Transport. Ltd. and our company under the matching project of Kanto Regional Development Bureau of Ministry of Land, Infrastructure, Transport and Tourism.
■Research Outline:
In recent years, we have seen cases of automatic detection of pavement cracks using photography and AI technology, but it is difficult to determine the exact crack rate using general-purpose equipment such as drive recorders installed in the vehicles of office and branch office staff. However, it is difficult to accurately calculate the crack rate using generic products such as drive recorders installed in office and sub-branch staff vehicles. Video image processing technology can be used to accurately calculate crack rates.

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