著者

佐田 実季 田邉 将之 川脇 治 中村 優花 岡島 寛

出版者

公益社団法人 計測自動制御学会

雑誌

計測自動制御学会論文集 (ISSN:04534654)

巻号頁・発行日

vol.56, no.6, pp.345-352, 2020 (Released:2020-06-12)

参考文献数

28

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Paved roads are said to be able to use them for a long time with adequate maintenances on a regular basis. However, due to a shortage of manpower for repairs, sufficient maintenance have not been taken on some municipal roads in Japan, and the deterioration has progressed rapidly. Furthermore, around 2025, many asphalt pavements paved during the period of high economic growth in Japan are expected to deteriorate rapidly, hence, a more effective method than the current manual repairing method is required. In this research, we aim to realize a machine that automatically detects and repairs cracks. As a starting point, this paper studies crack detection, one of the important elemental technologies. Assuming actual use, it is necessary to be robust to disturbances such as different colors of paved roads and illumination change due to the weather. To solve this problem, we propose a robust crack detection using deep learning. Specifically, the crack detection was performed by classifying cracked and uncracked areas by semantic segmentation using U-Net. The learning process was performed with various images including lighting changes in the training data set. As a result, we achieved a robust segmentation of cracked areas with 92.5 percent accuracy of Intersection over Union.

著者

岡島 寛 川脇 治

出版者

一般社団法人 システム制御情報学会

雑誌

システム制御情報学会論文誌 (ISSN:13425668)

巻号頁・発行日

vol.31, no.11, pp.392-399, 2018-11-15 (Released:2019-02-15)

参考文献数

14

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This paper presents a design framework for individualization of control system. Controllers in products are designed for the average user in general. To increase the control performance for a particular person, individual design of controller is required. However, design controller for individual users involve costs. The words “Internet of Things” is used in recent years. It is expected that low cost customization of the control system using individual characteristics observation and application of information of the individual characteristics for control system design. This propose a concept of the design framework of control systems for individual user based on individual user's parameters.