Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
846370 | Optik - International Journal for Light and Electron Optics | 2014 | 5 Pages |
Abstract
Fringe projection profilometry is widely used for three-dimensional shape measurement. In an oblique-angle projection, the fringe cycle is broadened on the reference plane. Phase errors are mainly caused by the nonlinear gamma of the projector and fringe cycle broadening. This study describes a phase error compensation method to eliminate these phase errors. A look-up table that stores phase errors is constructed for phase error compensation. Based on it, a new height equation is proposed. The experimental results show that the proposed method can compensate for the phase errors of the fringe projection profilometry, thereby improving the measurement accuracy significantly.
Related Topics
Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
Yanjun Fu, Zhigang Wang, Guangyu Jiang, Jie Yang,