Motion compensation for three-dimensional measurements of macroscopic objects using fringe projection

Three-dimensional reconstruction with measurement systems using fringe projection is widely used in non-static applications such as measurement of teeth in-side mouth, measurements using hand-held sensors [1], and inspections at assembly lines. In particular, in the last few years the demand of fast and cost-effective measurement systems becomes evident. Therefore, it is recommended to measure moving objects continuously instead of the current start-stop regimes. There are two potential approaches to address this issue: 1. the usage of highspeed components for projection and image acquisition ( = quasi-static situation for 3D measurements) or 2. algorithms for motion compensation. In the current study, standard hardware was used and a novel algorithm for motion compensation was developed.