Software Synchronization of Projector and Camera for Structured Light 3D Body Scanning
Tomislav Petković, Tomislav Pribanić, Matea Đonlić, Nicola D'Apuzzo · 2016
Current 3D body scanners based on structured light principle are expensive and somewhat bulky machines which limits their wider spread.One of the factors driving the scanner cost up is the requirement to synchronize projector and camera which requires either expensive system components a costly customized hardware synchronization solution.We propose a software solution to the projector-camera synchronization problem which enables construction of low-cost 3D scanner using common commercial off-the-shelf components only: a projector, a camera, and a computer.We also propose a simple calibration procedure for precise measurement of delay time which is necessary to achieve proper synchronization.We have developed a prototype system for 3D human body scanning using the proposed approach which achieves projector-camera synchronization and enables data acquisition at 30 FPS.