Dr. Yongjia Xu Profile

Dr. Yongjia Xu

at Univ. of Huddersfield

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Publications (3)

Proceedings Article | 27 November 2023 Paper

Error compensation for form errors of plate beamsplitter in near optical coaxial phase measuring deflectometry with reflection error model

Feng Gao, Yanling Li, Yongjia Xu, Zonghua Zhang, Yang Yu, Xiangqian Jiang

Proceedings Volume 12769, 127690K (2023) https://doi.org/10.1117/12.2686345

KEYWORDS: Beam splitters, Reflection, Phase measurement, Deflectometry, Optical testing, Specular reflections, Imaging systems, Shadows, Optical surfaces, Optical simulations

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Proceedings Article | 1 April 2020 Paper

Robustness improvement for the calibration of stereo deflectometry based on a search algorithm

Yongjia Xu, Feng Gao, Xiangqian Jiang

Proceedings Volume 11352, 113521I (2020) https://doi.org/10.1117/12.2552738

KEYWORDS: Calibration, Cameras, Deflectometry, Distortion, Imaging systems, Image processing, Fringe analysis, Optimization (mathematics), Metrology

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Proceedings Article | 19 December 2013 Paper

Crosstalk reduction of a color fringe projection system based on multi-frequency heterodyne principle

Zonghua Zhang, Yongjia Xu, Yue Liu

Proceedings Volume 9046, 904607 (2013) https://doi.org/10.1117/12.2034238

KEYWORDS: Fringe analysis, Projection systems, Heterodyning, 3D metrology, Fourier transforms, Digital micromirror devices, Digital Light Processing, Cameras, Composites, CCD cameras

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