Optimization of a weight matrix calculation for computed tomography of chemiluminescence imaging.

Computed tomography of chemiluminescence (CTC) reconstructs unknown physical quantities in 3D fluids by capturing 2D projections, and the imaging model must accurately describe the mathematical relationship between the volume of interest (VoI) and the projections. This paper addresses the optimization of the weight matrix calculation in CTC imaging and introduces the Monte Carlo subpixel (MC-subpixel) method. The method is applied to dynamic imaging scenarios where frequent camera position adjustments are required, such as scenes with limited projection angles or opaque optical obstructions.