One-Shot Entire Shape Scanning by Utilizing Multiple Projector-Camera Constraints of Grid Patterns

Abstract

This paper proposes a method to reconstruct the entire shape of moving objects by using multiple cameras and projectors. The projectors simultaneously cast static grid patterns of wave lines. Each of the projected patterns is a single-colored pattern of either red, green, or blue. Those patterns can be decomposed stably, compared to multi-colored patterns. For the 3D reconstruction algorithm, one shot reconstruction with wave grid pattern is extended for entire-shape acquisition, so that the correspondences between the adjacent devices can be used as additional constraints to reduce shape errors. Finally, multiple shapes obtained from the different views are merged into a single polygon mesh model using estimated normal information for each vertex.