Heterogeneous thermograms: the methods of attack

Abstract

Pronouncedly inhomogeneous thermograms occur universally in infrared imaging applications. The heterogeneity as a separate characteristic of a 2D pattern merits detailed consideration and quantitative estimation. The present contribution is among the first works dedicated to solving this problem. In addition to the review and summarizing of previous results, a new computational method is developed for quantitative estimation of the thermal pattern inhomogeneity. Artificial and really measured thermograms are analyzed with the designed original software. An adequacy of the new method is confirmed.

Quantitative characterization of vapour adsorption on solid surfaces and estimation of emissivity of solids using narrow-band short-wave infrared thermography

“…Temperature sensitivity of hundredths of a degree at frame rate of tens and hundreds frames per second makes focal plane array (FPA)-based infrared (IR) systems (Destefanis et al, 1997;Kurishev et al, 1998;Manissadjian et al, 2000) highly attractive as highperformance experimental means in scientific measurements. With novel mathematical and computational lines of attack applied to thermogram analysis (Tarkov et al, 2007;Vainer and Moskalev, 2008), it becomes possible to extract a substantial amount of new information from infrared imaging data.…”