Reconstruction of temperature distribution in a 2-D absorbing-emitting system from radiant energy images

A reconstruction method of temperature distribution in a 2-D absorbing-emit ting system has been established based on radiant image processing. In this method, the radiant energy received by the image-formation elements of a C CD camera is dominated by the radiant energy emitted from the gas medium an d the wall surface inside the system. The values of the ratio of the radian t energy received by the elements of the CCD camera to that emitted from ev ery gas and wall element have been calculated using Monte Carlo method. Fou r CCD cameras are used to capture radiant energy images and the reconstruct ion problem of the temperature distribution is converted to a linear progra mming problem and solved through using an interior point method. After intr oducing random errors into the CCD's energy distribution, the temperature d istribution of the system has been reconstructed with acceptable precision, which showed a great potential for application.