Sensors | |
Privacy-Preserved Behavior Analysis and Fall Detection by an Infrared Ceiling Sensor Network | |
Shuai Tao1  Mineichi Kudo2  | |
[1] Division of Computer Science, Hokkaido University, Kita 8 Nishi 5, Kita-ku, Sapporo 060-0808, Japan; | |
关键词: behavior analysis; fall detection; privacy-preserved; ceiling sensor network; infrared sensors; | |
DOI : 10.3390/s121216920 | |
来源: mdpi | |
【 摘 要 】
An infrared ceiling sensor network system is reported in this study to realize behavior analysis and fall detection of a single person in the home environment. The sensors output multiple binary sequences from which we know the existence/non-existence of persons under the sensors. The short duration averages of the binary responses are shown to be able to be regarded as pixel values of a top-view camera, but more advantageous in the sense of preserving privacy. Using the “pixel values” as features, support vector machine classifiers succeeded in recognizing eight activities (walking, reading,
【 授权许可】
CC BY
© 2012 by the authors; licensee MDPI, Basel, Switzerland
【 预 览 】
Files | Size | Format | View |
---|---|---|---|
RO202003190039876ZK.pdf | 1157KB | download |