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2023 Fiscal Year Final Research Report

Non-contact measurement of human oral breathing by using far infrared imaging

Research Project

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Project/Area Number 21K11981
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 61020:Human interface and interaction-related
Research InstitutionNagoya City University

Principal Investigator

Hanawa Dai  名古屋市立大学, 大学院芸術工学研究科, 教授 (50422506)

Project Period (FY) 2021-04-01 – 2024-03-31
Keywords遠赤外線画像 / 非接触計測 / 口呼吸 / 流量
Outline of Final Research Achievements

In this research, we studied the feasibility of a method for non-contact measurement of quantitative flow volume in human oral breathing by using far-infrared imaging. We first study a method to extract the region of interest including mouth on far-infrared images and its automation. We next compared the flow volume of oral breathing and the air temperature of inhalation/exhalation by conducting experiments. Moreover, we compared the oral regions on far-infrared images and the air temperature. As a result, we found the possibility that the quantitative flow volume of oral breathing can be estimated in a non-contact manner by using far-infrared images.

Free Research Field

ヒューマンコンピュータインタラクション

Academic Significance and Societal Importance of the Research Achievements

従来,人間の口呼吸における流量は,ユーザに計測機器を装着させる接触型の方法でのみ,定量的な計測が可能であった.そのため,日常生活への応用に向けては,身体的・精神的な負担,計測機器脱着の危険性,複数人の同時計測が困難などの課題があった.本研究では,遠赤外線画像を用いた方法により,口呼吸における呼気・吸気の流量を,非接触かつ定量的に推定できる可能性,および,可視光画像の併用による自動化の可能性を示すことができた.

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Published: 2025-01-30  

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