Comparison of convolution and Time Dependent Random Phase methods for modelling of the space invariant optical system with spatially incoherent illumination

摘要

In this paper we present the comparison of two methods for modeling space invariant optical system with spatially incoherent quasi-monochromatic illumination. The first one is a convolution method. The second one is a method based on the Time Dependent Random Phase (TDRP) algorithm. Both approaches provide equivalent results. However, the TDRP method maintains energy relations and magnification of the system. In the convolution method the pre-processing of the input image is required.