Three-dimensional shape measurement using a structured light system with dual projectors.

Published on May 10, 2018in Applied Optics1.961
· DOI :10.1364/AO.57.003983
Chufan Jiang6
Estimated H-index: 6
(Purdue University),
Beatrice Lim1
Estimated H-index: 1
(Purdue University),
Song Zhang55
Estimated H-index: 55
(Purdue University)
Sources
Abstract
This paper introduces a structured light system with two projectors and one camera for three-dimensional (3D) shape measurement to alleviate problems created by a single projector such as the shadow problem. In particular, we developed (1) a system calibration framework that can accurately calibrate each such camera-projector system; (2) a residual error correction method based on the system error function; and (3) a data fusion method utilizing the angle between the projection direction and surface normal. Experimental results demonstrate that the proposed dual-projector structured light system improves the measurement accuracy besides extending the measurement range of a single projector system.
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Keywords: Fourier-Transform Profilometry ; 3-Dimensional Shape Measurement ; Phase-Unwrapping Algorithm ; Continuous Wavelet Transform ; Surface Profile Measurement ; 3-D Object Shapes ; Structured Light Pattern ; 4-Core Optical-Fiber ; Deformation Measurements ; Shifting Profilometry Reference IMAC-REVIEW-2009-001doi:10.1016/j.optlaseng.2009.09.001View record in Web of Science Record created on 2009-09-02, modified on 2016-08-08
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