Electronic and thermal imaging systems

One of the areas of research carried out at the Institute of Electronics (LUT) is industrial application of thermography. Researches are mainly focused on the thermal phenomena occurring in electronic circuits and power systems, non-destructive testing using thermography, optical gas leaks imaging using in-house designed infrared and multispectral imaging systems. The new method of signal processing for temperature and strain measurement using optical fibers and Raman and Brillouin scattering phenomena has recently been developed. These studies are carried out in cooperation with industry and other research entities. The research works are supplemented with thermography training and courses that are aimed at enabling the broad possible use of thermography in the industry.

In the Institute of Electronics, the research and implementation of new methods and systems of infrared (IR) medical thermography are being developed for diagnosis and screening. The research is focused on new processing methods of IR images, in particular for dynamic active thermography. The new tools, systems and software mainly for medical screening, with application of thermal stress are the results of the scientific works. Thermal modelling based on inverse heat transfer problem solution of multilayer tissue structures for cancer and lesion screening is an important area of research. It concerns perfusion, anisotropy, modelling of thin and porous materials and non-Fourier heat transfer using Dual-Phase Lag approach. The new algorithm of advanced image processing using frequency analysis of long thermal image sequences were developed to achieve parametric images presenting e.g. perfusion.