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논문 기본 정보

자료유형
학술저널
저자정보
Myoungbeom Chung (Sungkyul University)
저널정보
한국컴퓨터정보학회 한국컴퓨터정보학회논문지 한국컴퓨터정보학회 논문지 제22권 제11호(통권 제164호)
발행연도
2017.11
수록면
49 - 55 (7page)

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초록· 키워드

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Recently, for safety of people, there are proposed so many technologies which detect density of people at the specific place or space. The representative technology for crowd density estimation was using image analysis method from CCTV images. However, this method had a weakness which could not be used and which’s accuracy was lower at the dark or smog space. Therefore, in this paper, to solve this problem, we proposed a user density estimation system at closed space using high frequency and smart device. The system send inaudible high frequencies to smart devices and it count the smart devices which detect the high frequencies on the space. We tested real-time user density with the proposed system and ten smart devices to evaluate performance. According to the testing results, we confirmed that the proposed system’s accuracy was 95% and it was very useful. Thus, because the proposed system could estimate about user density at specific space exactly, it could be useful technology for safety of people and measurement of space use state at indoor space.

목차

Abstract
I. Introduction
II. Related Work
III. User Density Estimation System using High Frequencies
IV. Experiments and Evaluation
V. Conclusions
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