A fuzzy automated object classification by infrared laser camera

Seigo Kanazawa; Kazuhiko Taniguchi; Kazunari Asari; Kei Kuramoto; Syoji Kobashi; Yutaka Hata

doi:10.1117/12.883362

3 June 2011 A fuzzy automated object classification by infrared laser camera

Seigo Kanazawa, Kazuhiko Taniguchi, Kazunari Asari, Kei Kuramoto, Syoji Kobashi, Yutaka Hata

Proceedings Volume 8058, Independent Component Analyses, Wavelets, Neural Networks, Biosystems, and Nanoengineering IX; 805815 (2011) https://doi.org/10.1117/12.883362
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

Home security in night is very important, and the system that watches a person's movements is useful in the security. This paper describes a classification system of adult, child and the other object from distance distribution measured by an infrared laser camera. This camera radiates near infrared waves and receives reflected ones. Then, it converts the time of flight into distance distribution. Our method consists of 4 steps. First, we do background subtraction and noise rejection in the distance distribution. Second, we do fuzzy clustering in the distance distribution, and form several clusters. Third, we extract features such as the height, thickness, aspect ratio, area ratio of the cluster. Then, we make fuzzy if-then rules from knowledge of adult, child and the other object so as to classify the cluster to one of adult, child and the other object. Here, we made the fuzzy membership function with respect to each features. Finally, we classify the clusters to one with the highest fuzzy degree among adult, child and the other object. In our experiment, we set up the camera in room and tested three cases. The method successfully classified them in real time processing.

Citation Download Citation

Seigo Kanazawa, Kazuhiko Taniguchi, Kazunari Asari, Kei Kuramoto, Syoji Kobashi, and Yutaka Hata "A fuzzy automated object classification by infrared laser camera", Proc. SPIE 8058, Independent Component Analyses, Wavelets, Neural Networks, Biosystems, and Nanoengineering IX, 805815 (3 June 2011); https://doi.org/10.1117/12.883362

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