View planning for occluded region with active imaging system

Abstract

Nowadays, a number of 3D shape measurement methods have been developed such as stereo vision, laser structured light, and Phase Measuring Profilometry (PMP). They have many problems such as correspondence problem, 2π-ambiguity and occlusion problem. Among them, occlusion problem is common problem for 3D shape measurement and well known as difficult to solve. To solve this problem, in our previous research, active imaging system is introduced, which can change the viewing angle without changing of field-of-view (FOV), and can do the FOV with maintaining the viewing angle. And to decide the viewing direction and position, view planning algorithm is developed. The performance of our system is checked by simulation and a series of real experiments.