Noncontact measurement of flow velocity and flow rate in human breathing by using Far Infrared Imaging
| Project/Area Number |
18K11401
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 61020:Human interface and interaction-related
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| Research Institution | Nagoya City University |
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Principal Investigator |
Hanawa Dai 名古屋市立大学, 大学院芸術工学研究科, 准教授 (50422506)
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| Project Period (FY) |
2018-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 遠赤外線画像 / 鼻呼吸 / 非接触計測 / 流速 / 流量 / 呼吸 / 呼吸計測 |
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| Outline of Final Research Achievements |
In this research, we studied the feasibility of a method for non-contact measurement of quantitative flow velocity and flow rate in human breathing by using far-infrared imaging. We first compared the air temperature, flow velocity, and surface temperature in the nasal cavity during human nasal breathing by conducting experiments. We next proposed a method for estimating the flow velocity from the air temperature and the surface temperature based on the experimental results. As a result, we found that the quantitative flow velocity in nasal breathing can be estimated in a non-contact manner by using far-infrared images.
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| Academic Significance and Societal Importance of the Research Achievements |
生体情報において重要な指標である呼吸の流速や流量は，これまでは，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アプローチにより，鼻呼吸中の呼気および吸気の流速を，非接触かつ定量的に推定できる可能性を示すことができた．
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Report
(4 results)
Research Products
(6 results)
