Prof. Nansheng Liu Profile

Prof. Nansheng Liu

at Nanchang Univ

SPIE Involvement:

Author

Publications (5)

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

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

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

Proc. SPIE. 7506, 2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments

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

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Proceedings Article | 3 February 2009 Paper

The study on sensing of MIG welding pool surface based on structured light

Nansheng Liu, Yanfeng Wang, Youzhi Yuan, Wei Luo, Xiaorui Liu

Proc. SPIE. 7157, 2008 International Conference on Optical Instruments and Technology: Advanced Sensor Technologies and Applications

KEYWORDS: Metals, Electrons, Fourier transforms, Semiconductor lasers, 3D metrology, Specular reflections, Bridges, Charge-coupled devices, Optical filtering, Structured light

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Proceedings Article | 28 January 2009 Paper

Vision detection of weld pool shape parameters and numerical simulation

Youzhi Yuan, Nansheng Liu, Yanfeng Wang, Wei Luo, Xiaorui Liu

Proc. SPIE. 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments

KEYWORDS: Optical filters, Metals, Image processing, Laser welding, Numerical simulations, Solids, Image filtering, Sensing systems, Charge-coupled devices, Active vision

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Proceedings Article | 23 February 2006 Paper

A study on anti-light disturbance in laser position detecting to welding seam

Nan-sheng Liu, Chang-rong Guo, Ming-you Liu

Proc. SPIE. 6150, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment

KEYWORDS: Optical filters, Sensors, Metals, Image processing, Laser welding, Semiconductor lasers, CCD cameras, Image filtering, 3D image processing, Structured light

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