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Title :頭上からの撮影画像による机上活動の類似度に関する基礎研究
Title alternative :Fundamental study on the similarity of desk top activities using photography from overhead
Authors :村上, 肇
Publisher :新潟工科大学
Issue Date :Mar-2019
Journal Title :新潟工科大学研究紀要
Volume :23
Start Page :1
End Page :13
ISSN :1342-792X
Abstract :In recent years, the health monitoring technique for activities of daily living (ADL) performed by the aged person has been required in Japan. In order to solve the problem of our society, various image recording and processing techniques have been developed and used. In this study, the photography from overhead is adopted for considering to privacy, and the similarity of desk top activities is investigated. A head area during an activity was estimated with image processing, and displacement of the center of the area between continuous still pictures was calculated. Five-number summary (the maximum, the minimum, and three quartiles) of the displacement during the activity was obtained. The probability detected from the difference between two activities was calculated from the five numbers which are assumed to follow t-distribution. The similarity score of the activities was defined as the ratio of a number which was not counted as the significant differences. Experiments of three cervical movements and seven desk top activities were performed and the similarity scores were obtained. Those from the cervical movements clearly indicated the difference of movements. Those from the desk top activities indicated the similarity of the head movement during such activities.
Keywords :health monitoring
activities of daily living (ADL)
image recording and processing techniques
photography from overhead
five-number summary
Type Local :Departmental Bulletin Paper
Language :jpn
URI :http://hdl.handle.net/10623/77544
Appears in Collections:01 新潟工科大学研究紀要 = Bulletin of Niigata Institute of Technology

Please use this identifier to cite or link to this item: http://hdl.handle.net/10623/77544

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