대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2008년도 제39회 하계학술대회
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- Pages.2010-2012
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- 2008
PPG를 이용한 감성평가 및 바이오피드백 기술
A Human Sensibility Evaluation and Biofeedback Technology using PPG
- Lee, Hyun-Min (Chongju University) ;
- Kim, Dong-Jun (Chongju University) ;
- Yang, Hee-Kyeong (Chongju University) ;
- Kim, Kyeong-Seop (Konkuk University) ;
- Lee, Jeong-Whan (Konkuk University)
- 발행 : 2008.07.16
초록
This study describes a system for human sensibility evaluation using PPG(photoplethysmogram) signal and biofeedback algorithm to respond the bad(negative) mood. For this objective, PPG signals for two emotional states(positive/negative) are collected. To evoke the test emotions, happy(or joyful) and sad(or irritating) movie files are collected and played in subjects' monitor. From the acquired PPG signal, the heart rate variability(HRV) is calculated. Using the HRV and its FFT spectra, the human sensibility is evaluated. Since the heart is a representative organ which is controlled by the autonomic nervous system(ANS), the ANS may reflect the changes in emotion. The biofeedback algorithm is designed with motion image player interacting with the results of the sensibility evaluation. It was shown that HRV was changed according to the subject's emotions. Accordingly, the sensibility evaluation test showed feasibility of the our method.
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