Mr. Xiaopu Ai Profile

Xiaopu Ai

at Nanchang Univ

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Author

Publications (3)

SPIE Journal Paper | 1 May 2011

Phase-correction algorithm of deformed grating images in the depth measurement of weld pool surface in gas tungsten arc welding

Yiqing Wei, Nansheng Liu, Xian Hu, Xiaopu Ai

OE, Vol. 50, Issue 05, 057209, (May 2011) https://doi.org/10.1117/12.10.1117/1.3579519

KEYWORDS: Tungsten, Image processing, Imaging systems, Fourier transforms, Reconstruction algorithms, Evolutionary algorithms, Computer simulations, Laser welding, Optical filters, Liquids

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Proceedings Article | 1 December 2009 Paper

Study on image acquisition in 3-D sensor system of arc welding pool surface shape using grating projection

Xiaopu Ai, Nansheng Liu, Yiqing Wei, Xian Hu, Sheng Wei, Xiaorui Liu

Proceedings Volume 7506, 750628 (2009) https://doi.org/10.1117/12.838387

KEYWORDS: Reflection, 3D acquisition, Spatial filters, Charge-coupled devices, Sensors, Optical filters, 3D image processing, Mirrors, Laser welding, Image acquisition

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Proceedings Article | 1 December 2009 Paper

Research on projection grating pitch in GTAW surface sensing based on Fourier transform profilometry

Xian Hu, Nansheng Liu, Xiaopu Ai, Yiqing Wei, Xiaorui Liu, Sheng Wei

Proceedings Volume 7506, 750629 (2009) https://doi.org/10.1117/12.838399

KEYWORDS: Charge-coupled devices, Fourier transforms, 3D metrology, Fringe analysis, Imaging systems, Projection systems, Precision measurement, Spatial frequencies, 3D surface sensing, Phase measurement

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