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Updated: Jul 12, 2026
High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
Published on: December 3, 2013
Acoustic grating fringe projector for high-speed and high-precision three-dimensional shape measurements
Xuebing Yin1, Huijie Zhao, Junyu Zeng
1School of Instrumentation Science andOpto-electronics Engineering, Beihang University, 10083 Beijing, China. xuebingyin@aspe.buaa.edu.cn
Abstract:
A new acoustic grating fringe projector (AGFP) was developed for high-speed and high-precision 3D measurement. A new acoustic grating fringe projection theory is also proposed to describe the optical system. The AGFP instrument can adjust the spatial phase and period of fringes with unprecedented speed and accuracy. Using rf power proportional-integral-derivative (PID) control and CCD synchronous control, we obtain fringes with fine sinusoidal characteristics and realize high-speed acquisition of image data. Using the device, we obtained a precise phase map for a 3D profile. In addition, the AGFP can work in running fringe mode, which could be applied in other measurement fields.
