|
Scientific Visualization
| Issue Year: | 2016 |
| Quarter: | 4 |
| Volume: | 8 |
| Number: | 5 |
| Pages: | 122 - 131 |
|
| Article Name: |
THERMOGRAPHIC VISUALIZATION AND REMOTE CONTROL OF DYNAMICAL PROCESSES AROUND A FACIAL AREA |
| Authors: |
I.A. Znamenskaya (Russian Federation), E.Yu. Koroteeva (Russian Federation), A.V. Khakhalin (Russian Federation), V.V. Shishakov (Russian Federation) |
| Address: |
I.A. Znamenskaya
znamen@phys.msu.ru
Lomonosov Moscow State University, Moscow, Russia
E.Yu. Koroteeva
koroteeva@physics.msu.ru
Lomonosov Moscow State University, Moscow, Russia
A.V. Khakhalin
shift@physics.msu.ru
Lomonosov Moscow State University, Moscow, Russia
V.V. Shishakov
avkhakhalin@mail.ru
Lomonosov Moscow State University, Moscow, Russia |
| Abstract: |
The paper reviews the current state-of-the-art methods for remote monitoring of psychophysiological human conditions that are based on thermographic video recordings and digital analysis of thermal fields. We describe the principles of thermgraphic visualization of human breathing and its application for quantitative analysis of psychophysiological activity. The results are given of recordings of human jet-like breathing flows obtained using an infrared thermal camera operating in the spectral range of 3.7-4.8 ?m with a temporal resolution of up to 400 Hz. The schematic of obtaining the rates of breathing cycles based on the spectral analysis of thermal field variations in the regions of interest is also given. We show that 20 s of infrared thermal visualization, at a 5 Hz frame rate minimum, is sufficient for extracting the basic respiratory rate, as well as detecting irregular breathing patterns. These can be considered as early markers for psychological or physiological distress. |
| Language: |
Russian |
|
|
|
