Thermovision-Based Human Body Temperature Measurement Supported by Vision System

The article presents the concept of using thermal image processing to measure temperature, but with the support of a classic vision system and the digital image processing and recognition. As part of the research, the hybrid thermovision-vision system was built, the purpose of which was to search for characteristic measurement areas on the human face that are reliable for the measurement of body temperature. The research focused on measurements in the corners of the eyes. The selection of the measurement area was based on the analysis and recognition of visual images, while the temperature was determined on the basis of the analysis of the infrared image of the studied area. Research was carried out on a small research group, the results were compared with those obtained with the use of non-contact medical thermometers. The obtained results, after taking into account the conditions in which the experiments were carried out, can be regarded as satisfactory and confirming the validity of the adopted concept of a hybrid temperature measurement system.