Determination of Optimum Threshold for Accuracy of People-counting System Based on Motion Detection

• 영문명: Determination of Optimum Threshold for Accuracy of People-counting System Based on Motion Detection
• 발행기관: 한국환경보건학회
• 저자명: Hanseul Ryu Junho Song Boram Lee Kiyoung Lee
• 간행물 정보: 『한국환경보건학회지』제41권 제5호, 299~304쪽, 전체 6쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2015.10.30

영문 초록

Objectives: A people-counting system measures real-time occupancy through motion detection. Accurate peoplecounting can be used to calculate suitable ventilation demands. This study determined the optimum motion threshold for a people-counting system. Methods: In a closed room with two occupants moving constantly, different thresholds were tested for the accuracy of a people-counting system. The experiments were conducted at 150, 300, 450 and 600 lux. These levels of brightness included the illumination levels of most public indoor areas. The experiments were repeated with three types of clothing coloration. Results: Overall, a threshold of 16 provided the lowest mean error percentage for the people-counting system. Brightness and clothing color did not have a significant impact on the results. Conclusion: A people-counting system could be used with threshold of 16 for most indoor environments.

목차

I. Introduction

II. Method

III. Results

IV. Discussion

V. Conclusion

키워드

Accuracy test environmental health service IAQ management motion detection people counting