Abstract
Structured light illumination is a process of 3D scanning using a digital projector to project a series of striped patterns that sweep a target surface, and based on the warping of the stripes viewed by a camera, the shape of the target can be reconstructed. In the case of scanning stripes separately in both horizontal and vertical directions, algorithms have been proposed that achieve real-time reconstruction through look-up tables; however, these look-up tables implement the inversion of one traditional lens projection matrix. In this Letter, we propose look-up tables constructed using (1) both views of a camera and a projector and (2) basic arithmetic operations rather than complex matrix operations to significantly reduce the total number of computations used to reconstruct a point cloud. Experiments show that, with the same accuracy, the proposed tables improve the computation speed by a factor of 6.66×, from 31.00 to 206.61 fps.
Original language | English |
---|---|
Pages (from-to) | 837-840 |
Number of pages | 4 |
Journal | Optics Letters |
Volume | 46 |
Issue number | 4 |
DOIs | |
State | Published - Feb 15 2021 |
Bibliographical note
Publisher Copyright:© 2021 Optical Society of America
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics