TOMOGRAPHIC RECONSTRUCTION OF THREE-DIMENSIONAL TEMPERATURE FIELD USING LIQUID CRYSTAL SCANNING THERMOGRAPHY

Liquid crystal thermography (LCT) generates two-dimensional temperature information in afluid layer. A three-dimensional temperature field can be reconstructed using the twodimensional temperature fields obtained at various locations with the help of synchronized movements of the light sheet and camera. However, in many cases it may not befeasible to generate a large number of two-dimensional liquid crystal thermographs that are needed to represent a high-resolution, three-dimensional temperature field. In the present article, a tomographic reconstruction method is suggested that can be used to produce a highresolution, three-dimensional reconstruction from a limited number of two-dimensional images of the full temperature field. The two-dimensional temperature fields generated from the LCT experiments can be used to obtain integrated information of the threedimensional field from various directions. These estimated projections of the actual threedimensional field can be used to reconstruct a high-resolution volumetric temperature field within an acceptable error.