...The recorded amplitude profile of the thermal wave shows a maximum corresponding to a heat accumulation in the region where the open micro-gap is found, whereas a minimum in the phase profile is detected. These maxima/minima are convenient indicators that allow to locate surface breaking defects on teeth. For the purpose of emphasizing very small temperature variations surrounding the thin flaws, different image processing algorithms were developed and included within the DCD software solution.
Authors:
Bogdan Belean and Mihaela Streza
Acknowledgement
The software solution was supported by the Romanian UEFISCDI research grant PNII-RU-TE-2014-4-1507 (IMAGEDENT).
VisualMaths is a 2D curve drawing program (3D and dynamic curves not yet available). User defines objects (functions,variables,arrays) and assign each object to a curve and an axis. VisualMaths also provides some graphic solvers : minima, maxima.