Emerging image processing techniques demonstrate their potential applications in earthquake engineering, particularly in the area of system identification. In this respect, the objectives of this research are to demonstrate the underlying principle that permits system identification, non-intrusively and remotely, with the aid of video camera and, for the purpose of the proof-ofconcept, to apply the principle to a system identification problem involving relative motion, on the basis of the images. In structural control, accelerations at different stories of a building are usually measured and fed back for processing and control. As an alternative, this study attempts to identify the relative motion between different stories of a building for the purpose of on-line structural control by digitizing the images taken by video camera. For this purpose, the video image of the vibration of a structure base-isolated by a friction device under shaking-table was used successfully to observe relative displacement between the isolated structure and the shaking-table. This proof-of-concept experiment demonstrates that the proposed identification method based on digital image processing can be used with appropriate modifications to identify many other engineering-wise significant quantities remotely. In addition to the system identification study in the structural dynamics mentioned above, a result of preliminary study is described involving the video imaging of state of crack damage of road and highway pavement.
Japan is becoming the most aging society in the world and the countryside area is usually characterized the more aged and depopulated town. The researched area is called "Kimita Village" where 2,000 people live, and the aged percentage over 65 year people is 34.7, which means vay higher compared with the Japan's average of 15%. This paper deals with Community Ergonomics "Cyber Village" intervening Ergonomics in so small and aged village to enhance people's "Quality of Life" in terms of Kansei Ergonomics and Information Technology. 1NTRODUCTlON Kansei Ergonomics Kansei Ergonomics was founded by Nagamachi (1999) and has been applied to many industrial fields to develop a new product. KE is an ergonomic product development technology and it is defined as "translating human feeling on a coming product (Kansei) into a design field". There are many kansei products in Automotive, Conshuction Machine, Home Elechic Appliance, Costume, Cosmetic as well as House Building indushies. Since the powerful effects of KE are generally recognized, it is applied to civil engineering field to conshuct river, bridge, dam and so forth. Many countries are interested in introducing KE to their own industries. Kansei Ergonomics startz research on people kansei of the research subject and transfers the research data to the design. In this paper, people kansei was implemented in redesigning their village in terms of Information Technology.
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