J. Phys. IV France
Volume 129, October 2005
Page(s) 259 - 263

J. Phys. IV France 129 (2005) 259-263

DOI: 10.1051/jp4:2005129053

The method of improving of thermal wave images registered with IR detector

Z. Suszynski and T. Juszkiewicz

Chair of Computer Engineering, Faculty of Electronics, Technical University of Koszalin, Sniadeckich Street, 75-453 Koszalin, Poland

Real shapes of power excitation and thermal nonuniformities regions of electronic device objects are difficult to determine basing on thermal and thermal-wave images due to diffusion of heat flux in investigated object and limited resolution of temperature detectors (camera). Those two factors cause the blurring of thermal images.

This paper presents a method of elimination image of distortions improved by deconvolution procedure of the thermal diffusion and IR camera influences. It allows increasing the final thermal-wave image resolution. Proposed algorithm ensures sharpening deconvolution procedure of the thermal-wave images of heterogeneity as well as images of energy excitation areas. It is based on the iterative deconvolution of registered thermal-wave image making assumption that the character of temperature field blurring and its parameters are roughly known.

© EDP Sciences 2005