Estimation of rotation measurement error of objects using computer simulation

In optical instrumentation, one of the tasks is to estimate the instrumental error of existing and developing measurement systems. There are two main approaches to solving this problem: theoretical estimation, physical and computer simulation. This paper presents an approach to computer simulation of an optical system for measuring the position of a freely rotating platform. The simulation was performed in the Unity3D environment. It consisted of generating synthetic images of a freely rotating platform at different positions with defined parameters. The measurement error was determined by comparing the positions measured on the synthesised images with the positions given in the simulation. The paper presents the dependence of the measurement error on the image processing parameters and on the position of the virtual camera relative to the rotating platform obtained in the simulation.