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De La Librairie Thermographique
Version du 17 décembre 2013 à 15:11 par Hcrepin (discuter | contributions)

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Thermografie van 3 mensen over migraine. Source: PLOS one, authors: Nina Zaproudina, Victor Teplov, Ervin Nippolainen, Jukka A. Lipponen, Alexei A. Kamshilin, Matti Närhi, Pasi A. Karjalainen, Rashid Giniatullin



The setup for carrying out experiments is shown in Fig. 1. In our experiments, the facial area of a subject was illuminated by an illumination system which consists of two similar light-emitting diodes (LED) of the model H2A3-530 by Roithner LaserTechnick, operating at a wavelength of 530 nm. The optical power of both LEDs was 60 mW, providing an illuminated area of 30×60 cm2 at a distance between the subject face and video cameras, which was about 2 m. The duration of each measurement was 15 s. The illuminating light was linearly polarized. The direction of illumination was at a small angle with the direction of observation provided by the video systems. For video recording of the light reflected from the subject’s face we simultaneously used two video systems: a digital monochrome camera for blood pulsation imaging and a digital infrared camera for thermography imaging. A digital infrared camera system (FLIR A315, FLIR Systems Inc., USA) was used for thermography imaging. Parameters of the infrared camera system during recording were the following: spatial resolution 320×240 pixels, temperature accuracy measurement 0.05 °C, and temporal resolution 9 Hz.[1]

Français: migraine

English : headache

  1. Asynchronicity of Facial Blood Perfusion in Migraine by ina Zaproudina, Victor Teplov, Ervin Nippolainen, Jukka A. Lipponen, Alexei A. Kamshilin, Matti Närhi, Pasi A. Karjalainen, Rashid Giniatullin .
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