Manual Calibration of System of the Image Projection Based on DLP Projectors

Correct conducting of the geometric and photometric calibration of the image projection system provides the seamless and uniform visualization. In this publication an author’s method was introduced to the manual calibration enabling the calibration of the any number of DLP projectors, on-screen consisting of many planar surfaces. Based on tests the factors distorting the initial visualisation were distinguished, so as the black offset, brighter areas of the projection, where areas of lighting neighbouring projectors are overlapping each other and methods, which let get the homogeneous visualisation were developed. As a result of developing the method a software arose facilitating conducting the geometrical and colourful calibration, one by one. The software was subjected to qualitative as well as quantitative tests what allowed to collect conclusions needed for follow-up works, of which an automation of the process is a purpose.