Real time visualization of 3D variable in time object based on cloud of points data gathered by coloured structure light projection system

Abstract

The problem of virtual view creation has received increasing attention in recent years. Major current approaches are based on modified stereo vision systems. Recently the structure light measurement system based on digital light projection supported by special data coding and processing allow to rapid 3D shape acquisition. Application of this technology to record 3D data has increased significantly the accuracy of reconstructed shape and simplified data manipulation process. In the paper the general concept of virtual reality system supported by data gathered by means of structure light projection is presented. The methodology of conversion of cloud of measurement points (x,y,z,R,G,B) into virtual reality environment is described. It is supported by implementation of a virtual camera concept, as the mean for interactive object visualization. The methodology of real time 3D object visualization based on its coding by means of specially formed contours and their B-spline approximation is presented. The applicability of the methodology has been shown on numerically generated data which simulate performance of the measurement system. The total processing path was successfully tested.