Dr. Zhan Gao Profile

Dr. Zhan Gao

Professor at Beijing Jiaotong Univ

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Author

Publications (10)

SPIE Journal Paper | 2 May 2024

Looseness inspection of fasteners based on digital shearing speckle pattern interferometry and convolutional neural network

Lin Deng, Zhan Gao, Guang Chen, Yuhao Niu, Jieming Zhao, Xiufang Li

OE, Vol. 63, Issue 05, 054102, (May 2024) https://doi.org/10.1117/12.10.1117/1.OE.63.5.054102

KEYWORDS: Inspection, Visual process modeling, Speckle, Image classification, Speckle pattern, Deformation, Education and training, Data modeling, Machine learning, Fringe analysis

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SPIE Journal Paper | 10 December 2018

Real-time measurement of microcantilever displacement based on Linnik microscopic speckle interferometer

Chenjia Gao, Zhan Gao, Xu Wang, Zihui Liu, Chuqian Zhong, Yuan Zhang, Yuchen Liu

OE, Vol. 57, Issue 12, 124101, (December 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.12.124101

KEYWORDS: Wavelets, Speckle, Interferometers, Microelectromechanical systems, Microscopes, Ferroelectric materials, Objectives, Beam splitters, Nondestructive evaluation, Optical engineering

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SPIE Journal Paper | 6 October 2017

Subpixel displacement measurement method based on the combination of particle swarm optimization and gradient algorithm

Chen Guang, Qibo Feng, Keqin Ding, Zhan Gao

OE, Vol. 56, Issue 10, 104101, (October 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.10.104101

KEYWORDS: Particle swarm optimization, Speckle, Particles, Metals, Optical engineering, Computer simulations, Digital image correlation, Optimization (mathematics), Correlation function, Inspection equipment

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Proceedings Article | 27 September 2016 Paper

Synchronous two-wavelength temporal interferometry

Xiaoqiong Zhang, Zhan Gao, Jie Qin, Guangyu Li, Ziang Feng, Shengjia Wang

Proceedings Volume 9684, 968409 (2016) https://doi.org/10.1117/12.2239472

KEYWORDS: Interferometry, Phase measurement, Fourier transforms, Wavelet transforms, Wavelets, Mirrors, CCD cameras, Light sources, Phase shifting, Beam splitters

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Proceedings Article | 5 August 2015 Paper

Research on key factors in the digital shearing speckle pattern interferometry

Ziang Feng, Zhan Gao, Xiaoqiong Zhang, Shengjia Wang

Proceedings Volume 9621, 962109 (2015) https://doi.org/10.1117/12.2193121

KEYWORDS: Fringe analysis, Prisms, Polarization, Speckle pattern, Polarizers, Interferometry, Phase shifts, Phase shift keying, Nondestructive evaluation, Fourier transforms

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Proceedings Article | 19 December 2013 Paper

Research of Temporal Speckle Pattern Interferometry for in-plane measurement

Guangyu Li, Zhan Gao, Yan Deng

Proceedings Volume 9046, 904603 (2013) https://doi.org/10.1117/12.2034061

KEYWORDS: Wavelets, Speckle pattern, Wavelet transforms, Fourier transforms, Interferometry, Mirrors, Error analysis, Signal processing, Beam splitters, Continuous wavelet transforms

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SPIE Journal Paper | 1 April 2011

Imaging polarization spectrometer based on the Wollaston prisms

Zhan Gao, Yaya Mao, Xiaolei Chen, Zeming Lin

OE, Vol. 50, Issue 04, 043602, (April 2011) https://doi.org/10.1117/12.10.1117/1.3560263

KEYWORDS: Prisms, Spectroscopy, Fourier transforms, Spectral resolution, Charge-coupled devices, Polarization, Light emitting diodes, Modulation, Imaging systems, Imaging spectroscopy

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Proceedings Article | 28 December 2010 Paper

Development of GJ-4G track inspection car

Shengwei Ren, Shiping Gu, Guiyang Xu, Zhan Gao, Qibo Feng

Proceedings Volume 7544, 75440Q (2010) https://doi.org/10.1117/12.885888

KEYWORDS: Inspection, Image processing, Video processing, Field programmable gate arrays, Safety, Laser systems engineering, CCD cameras, Laser processing, Signal processing, Video

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Proceedings Article | 12 November 2010 Paper

A novel method to measure wheelset parameters based on laser displacement sensor on line

Zhi-feng Zhang, Yu-ling Su, Zhan Gao, Guang-yan Wang, Yu-fen Ren, Feng-chun Jiang

Proceedings Volume 7855, 785516 (2010) https://doi.org/10.1117/12.869408

KEYWORDS: Sensors, Reliability, Optoelectronics, Laser optics, Wavelets, Charge-coupled devices, Safety, Laser applications, Time metrology, CCD image sensors

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SPIE Journal Paper | 1 January 2010

Track irregularity inspection trolley based on fiber-optic gyro

Zhan Gao, Qibo Feng, Sijin Wu, Fei Cheng, Jianying Cui, Shiqian Chen, Shiqing Jia, Jianjun Liu

JM3, Vol. 9, Issue 01, 013045, (January 2010) https://doi.org/10.1117/12.10.1117/1.3290239

KEYWORDS: Fiber optic gyroscopes, Fiber optics, Gyroscopes, Inspection, Fiber optics tests, Velocity measurements, Navigation systems, Safety, Measurement devices, Sensors

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Showing 5 of 10 publications

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