Open AccessMotion-induced error compensation for phase shifting profilometry
Author(s) -
Ziping Liu,
Peter C. Zibley,
Song Zhang
Publication year - 2018
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.012632
Subject(s) - projector , profilometer , structured light 3d scanner , optics , phase (matter) , computer science , digital light processing , motion compensation , computer vision , motion (physics) , projection (relational algebra) , compensation (psychology) , artificial intelligence , pinhole (optics) , observational error , physics , algorithm , mathematics , psychology , scanner , quantum mechanics , surface roughness , psychoanalysis , statistics
This paper proposes a novel method to substantially reduce motion-introduced phase error in phase-shifting profilometry. We first estimate the motion of an object from the difference between two subsequent 3D frames. After that, by leveraging the projector's pinhole model, we can determine the motion-induced phase shift error from the estimated motion. A generic phase-shifting algorithm considering phase shift error is then utilized to compute the phase. Experiments demonstrated that proposed algorithm effectively improved the measurement quality by compensating for the phase shift error introduced by rigid and nonrigid motion for a standard single-projector and single-camera digital fringe projection system.