Study of possibilities for light marker coordinate measuring with light field digital cameras

Abstract

The paper considers the possibilities of recording the laser emitter light markers on the surface of the object under study by an optoelectronic system based on digital light field cameras. The technique of experimental research of coordinates and parameters of light markers is described. The mathematical model of light markers is presented. Algorithms have been developed for determining the coordinates of light markers on the surface of controlled products. The accuracy of determining the coordinates and dimensions of light markers is analyzed. The necessity for high-precision measuring systems to perform preliminary calibration of laser emitters according to the proposed method, taking into account the design range of light markers, is shown. It was found that the accuracy of determining the coordinates of light markers for design surfaces with digital cameras of the light field is several times higher than with conventional digital cameras.