Prof. Xiang Peng Profile

Prof. Xiang Peng

Retired at Shenzhen Univ

SPIE Involvement:

Conference Program Committee | Author | Student Chapter Advisor

Publications (94)

Proceedings Article | 4 March 2024 Paper

Multi-view 3D reconstruction based on speckle correlation

Xiaoxian Zeng, Yu Jing, Qijian Tang, Xiaoli Liu, Xiang Peng

Proceedings Volume 13070, 130700T (2024) https://doi.org/10.1117/12.3018108

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Proceedings Article | 4 March 2024 Paper

Exploring the range of optical memory effect by deep learning

Juncheng Chen, Dajiang Lu, Jiapeng Cai, Zaoxin Chen, Xiang Peng, Wenqi He

Proceedings Volume 13070, 130700U (2024) https://doi.org/10.1117/12.3018703

KEYWORDS: Point spread functions, Autocorrelation, Speckle, Speckle pattern, Imaging systems, Deep learning, Scattering media, Phase retrieval, Light scattering

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Proceedings Article | 15 February 2024 Paper

Body measurement based on a multiview structured light 3D imaging system

Meng Wang, Hailong Chen, Qijian Tang, Xiang Peng, Yu Fu, Xiaoli Liu

Proceedings Volume 13069, 1306907 (2024) https://doi.org/10.1117/12.3023318

KEYWORDS: Sensors, 3D metrology, 3D scanning, Point clouds, Stereoscopy, 3D image processing, Imaging systems, Structured light, 3D acquisition, 3D modeling

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Proceedings Article | 27 January 2023 Paper

Fourier ptychographic microscopy reconstruction with an untrained deep neural network

Li Li, Xianye Li, Jingping Guo, Qijian Tang, Xiaoli Liu, Xiang Peng

Proceedings Volume 12550, 125501Q (2023) https://doi.org/10.1117/12.2667198

KEYWORDS: Neural networks, Deep learning, Reconstruction algorithms, Microscopy, Education and training, Data modeling, Image fusion, Light emitting diodes, Network architectures

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Proceedings Article | 20 June 2021 Presentation + Paper

Ensemble cross-correlation for image retrieval from the intensity signal recorded by a single pixel

Stephan Ludwig, Giancarlo Pedrini, Xiang Peng, Wolfgang Osten

Proceedings Volume 11782, 1178214 (2021) https://doi.org/10.1117/12.2592727

KEYWORDS: Point spread functions, Image retrieval, Scattering, Scanning probe microscopy, Microscopy, Light scattering, Scattering media, Optical storage, Mirrors, Microscopes

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Proceedings Article | 10 October 2020 Poster + Presentation + Paper

Cryptanalysis of phase-truncated Fourier-transforms-based optical cryptosystem using an untrained neural network

Wenqi He, Shuixin Pan, Meihua Liao, Dajiang Lu, Qi Xing, Xiang Peng

Proceedings Volume 11549, 115491W (2020) https://doi.org/10.1117/12.2583396

KEYWORDS: Neural networks, Cryptanalysis

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Proceedings Article | 10 October 2020 Presentation + Paper

Positional misalignment correction for Fourier ptychographic microscopy based on intensity distribution

Wei Huang, Shuixin Pan, Qi Zhou, Meihua Liao, Chenggong Zhang, Qijian Tang, Xiaoli Liu, Xiang Peng

Proceedings Volume 11549, 115490D (2020) https://doi.org/10.1117/12.2583686

KEYWORDS: Light emitting diodes, Microscopy, Image quality, LED displays, Microscopes

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Proceedings Article | 10 October 2020 Presentation + Paper

Global iterative optimization for Fourier ptychographic microscopy

Qijian Tang, Wei Huang, Chenggong Zhang, Xiaoli Liu, Xiang Peng

Proceedings Volume 11549, 115490E (2020) https://doi.org/10.1117/12.2583941

KEYWORDS: Microscopy, Image resolution, Visualization, Phase imaging, Optical microscopes, Life sciences, Imaging technologies

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Proceedings Article | 21 August 2020 Presentation + Paper

Color imaging through a scattering layer from one grayscale speckle pattern

Wenqi He, Qi Xing, Dajiang Lu, Meihua Liao, Zijie Chen, Xiang Peng

Proceedings Volume 11509, 115090M (2020) https://doi.org/10.1117/12.2567892

KEYWORDS: Scattering, Speckle pattern, Light scattering, Color imaging, Cameras, Scattering media, Modulation, Point spread functions, Optical imaging

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Proceedings Article | 18 August 2020 Poster + Presentation + Paper

Imaging an extended object through a thin scattering layer via various point spread functions

Wenqi He, Zijie Chen, Dajiang Lu, Meihua Liao, Qi Xing, Xiang Peng

Proceedings Volume 11509, 1150910 (2020) https://doi.org/10.1117/12.2570545

KEYWORDS: Point spread functions, Scattering, Deconvolution, Speckle

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Proceedings Article | 17 April 2020 Paper

Real-time point cloud registration for flexible hand-held 3D scanning

Yang Yang, HaiLong Chen, Xiaoli Liu, Qijian Tang, Zewei Cai, Xiang Peng

Proceedings Volume 11455, 114557U (2020) https://doi.org/10.1117/12.2565366

KEYWORDS: Clouds, 3D scanning, Image registration, 3D modeling, Calibration, 3D acquisition, Machine vision, Photogrammetry, Remote sensing, 3D image processing

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Proceedings Article | 30 March 2020 Presentation + Paper

Real-time imaging through moving scattering layers via a two-step deep learning strategy

Meihua Liao, Shanshan Zheng, Dajiang Lu, Guohai Situ, Xiang Peng

Proceedings Volume 11351, 113510V (2020) https://doi.org/10.1117/12.2556070

KEYWORDS: Speckle, Scattering media, Real time imaging, Neural networks

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Proceedings Article | 12 March 2020 Paper

Improved 3D imaging and measurement with fringe projection structured light field

Xiaojie Zhang, Zewei Cai, Xiaoli Liu, Xiang Peng

Proceedings Volume 11438, 114380X (2020) https://doi.org/10.1117/12.2550218

KEYWORDS: 3D metrology, Imaging systems, Modulation, Projection systems, Structured light, Phase shift keying, 3D modeling

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Proceedings Article | 18 November 2019 Paper

Optical hash function based on the interaction between multiple scattering media and coherent radiation

Lianbin Zhang, Wenqi He, Meihua Liao, Dajiang Lu, Chenggong Zhang, Xiang Peng

Proceedings Volume 11187, 111871B (2019) https://doi.org/10.1117/12.2537313

KEYWORDS: Multiple scattering, Optical filters, Feature extraction, Modulation, Logic, Safety, Speckle pattern, Resistance

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Proceedings Article | 18 November 2019 Paper

How can a plenoptic camera be used as a metrology tool?

Zewei Cai, Xiaoli Liu, Giancarlo Pedrini, Wolfgang Osten, Xiang Peng

Proceedings Volume 11189, 1118902 (2019) https://doi.org/10.1117/12.2540184

KEYWORDS: Cameras, Metrology, 3D image processing, Calibration, Optical testing, Image sensors, Signal detection, Microlens array, Sensors, Image processing

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Proceedings Article | 16 October 2019 Paper

Automatic phase aberration compensation for digital holographic microscopy based on rotation and transpose

Dingnan Deng, Weijuan Qu, Wenqi He, Xiaoli Liu, Xiang Peng

Proceedings Volume 11205, 1120505 (2019) https://doi.org/10.1117/12.2541687

KEYWORDS: Digital holography, Microscopy, Holography, Numerical analysis, Optical signal processing, Imaging systems, Biomedical optics, Phase measurement, Phase imaging

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Proceedings Article | 3 September 2019 Paper

Using wrapped phases for light-field three-dimensional imaging

Jiawei Chen, Zewei Cai, Xiaoli Liu, Giancarlo Pedrini, Wolfgang Osten, Xiang Peng

Proceedings Volume 11102, 111021C (2019) https://doi.org/10.1117/12.2527850

KEYWORDS: Microlens, 3D image processing, Phase shifts, Cameras, Imaging systems, Calibration, 3D metrology, Modulation, 3D modeling, Computer programming

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Proceedings Article | 21 June 2019 Paper

Light field three-dimensional measurement

Zewei Cai, Xiaoli Liu, Meihua Liao, Wenqi He, Giancarlo Pedrini, Wolfgang Osten, Xiang Peng

Proceedings Volume 11056, 1105628 (2019) https://doi.org/10.1117/12.2526889

KEYWORDS: Calibration, Cameras, 3D metrology, 3D image reconstruction, Imaging systems

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Proceedings Article | 7 September 2018 Paper

Imaging dynamic objects hidden behind scattering medium by retrieving the point spread function

Dajiang Lu, Meihua Liao, Wenqi He, Zewei Cai, Xiang Peng

Proceedings Volume 10834, 1083428 (2018) https://doi.org/10.1117/12.2319734

KEYWORDS: Point spread functions, Scattering, Image processing, Light scattering, Deconvolution, Image restoration

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Proceedings Article | 7 September 2018 Presentation + Paper

Cryptanalysis on double random phase encoding with deep learning

Han Hai, Meihua Liao, Dajiang Lu, Wenqi He, Xiang Peng

Proceedings Volume 10751, 107510W (2018) https://doi.org/10.1117/12.2319902

KEYWORDS: Cryptanalysis, Neural networks, Fourier transforms, Neurons, Image encryption, Numerical simulations, Optical image encryption

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Proceedings Article | 7 September 2018 Paper

Depth-of-field characteristic analysis of the imaging system with scattering medium

Meihua Liao, Dajiang Lu, Zewei Cai, Wenqi He, Xiang Peng

Proceedings Volume 10834, 1083423 (2018) https://doi.org/10.1117/12.2319699

KEYWORDS: Imaging systems, Optical transfer functions, Scattering media, Spatial frequencies

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Proceedings Article | 24 July 2018 Paper

A method of vision localization measurement to assist Fourier ptychographic microscopy

Xiaoli Liu, Cheng Li, Qijian Tang, Xiang Peng

Proceedings Volume 10827, 108270J (2018) https://doi.org/10.1117/12.2501042

KEYWORDS: Stereo vision systems, Imaging systems, Microscopy, Image processing, Spatial frequencies, Cameras

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Proceedings Article | 24 July 2018 Paper

An accurate hand-eye calibration algorithm with global optimization

Yaqin Zhang, Xiaoli Liu, Hailong Chen, Zewei Cai, Qijian Tang, Xiang Peng, Menglong Liu, Qingquan Li

Proceedings Volume 10827, 108270Z (2018) https://doi.org/10.1117/12.2500972

KEYWORDS: Calibration, Cameras, 3D metrology, Sensors, 3D acquisition, Optimization (mathematics), Data acquisition, Imaging systems, Error analysis, Robot vision

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Proceedings Article | 24 July 2018 Paper

A method for fast 3D fringe projection measurement without phase unwrapping

Xiaoli Liu, Yang Yang, Qijian Tang, Zewei Cai, Xiang Peng, Menglong Liu, Qingquan Li

Proceedings Volume 10827, 1082713 (2018) https://doi.org/10.1117/12.2501470

KEYWORDS: Cameras, 3D metrology, Phase measurement, Imaging systems, Projection systems, 3D modeling, Calibration, Image processing, Phase shift keying, Phase shifts

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Proceedings Article | 10 February 2017 Paper

Comparison of active, passive and adaptive phase error compensation methods using a universal phase error model

Zewei Cai, Xiaoli Liu, Qijian Tang, Xiang Peng, Yongkai Yin

Proceedings Volume 10250, 102502Z (2017) https://doi.org/10.1117/12.2267107

KEYWORDS: Error analysis, Phase shifts, Phase shifting, Calibration

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Proceedings Article | 10 February 2017 Paper

Speckle-correlation-based ciphertext-only attack on the double random phase encoding scheme

Meihua Liao, Dajiang Lu, Wenqi He, Xiang Peng

Proceedings Volume 10250, 102502I (2017) https://doi.org/10.1117/12.2266736

KEYWORDS: Computer programming, Computer security, Speckle

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Proceedings Article | 10 February 2017 Paper

Selection of F/number in lattice design for stitching inferferometry of aspheric surface

Junzheng Peng, Xiaoli Liu, Xiang Peng, Yingjie Yu, Xiaoge Li

Proceedings Volume 10250, 1025010 (2017) https://doi.org/10.1117/12.2266725

KEYWORDS: Stitching interferometry, Aspheric lenses

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Proceedings Article | 10 February 2017 Paper

Portable 3D scanning system based on an inertial sensor

Qijian Tang, Xiang Peng, Xiaoli Liu, Zewei Cai

Proceedings Volume 10250, 102502E (2017) https://doi.org/10.1117/12.2267213

KEYWORDS: 3D scanning, Sensors

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Proceedings Article | 28 September 2016 Paper

An automatic registration system of multi-view 3D measurement data using two-axis turntables

Dong He, Xiaoli Liu, Zewei Cai, Hailong Chen, Xiang Peng

Proceedings Volume 9971, 99712H (2016) https://doi.org/10.1117/12.2237860

KEYWORDS: Structured light, Calibration, Image registration, 3D metrology, 3D modeling, 3D image processing, Optical spheres, Cameras, Clouds, Imaging systems

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Proceedings Article | 12 September 2016 Paper

Generalized amplitude-phase retrieval algorithm attack on 'double images encryption method with resistance against the special attack based on an asymmetric algorithm'

Chenggong Zhang, Wenqi He, Zewei Cai, Xiang Peng

Proceedings Volume 9970, 997018 (2016) https://doi.org/10.1117/12.2236277

KEYWORDS: Image encryption, Resistance, Computer security, Cryptanalysis, Joint transforms, Optical correlators, Fourier transforms, Phase retrieval, Information security, Cryptography

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SPIE Journal Paper | 8 August 2016

Nanoscale measurement of in-plane and out-of-plane displacements of microscopic object by sensor fusion

Alok Kumar Singh, Giancarlo Pedrini, Xiang Peng, Wolfgang Osten

OE, Vol. 55, Issue 12, 121722, (August 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.12.121722

KEYWORDS: Digital holography, Digital image correlation, Sensors, Spiral phase plates, Wavefronts, Holograms, 3D metrology, Optical engineering, 3D image processing, Digital imaging

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Proceedings Article | 8 October 2015 Paper

Fast and precise dense grid size measurement method based on coaxial dual optical imaging system

Jiping Guo, Xiang Peng, Jiping Yu, Jian Hao, Yan Diao, Tao Song, Ameng Li, Xiaowei Lu

Proceedings Volume 9677, 967705 (2015) https://doi.org/10.1117/12.2196792

KEYWORDS: Imaging systems, Calibration, Optical imaging, Charge-coupled devices, Inspection, Optical testing, Standards development, Statistical analysis, Metrology, Analytical research

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Proceedings Article | 9 September 2015 Paper

Low crosstalk optical hierarchical authentication with a fixed random phase lock based on two beams interference

Dajiang Lu, Wenqi He, Xiang Peng

Proceedings Volume 9598, 95980S (2015) https://doi.org/10.1117/12.2187349

KEYWORDS: Fourier transforms, Image processing, Legal, Optical authentication, Databases, Information security, Numerical simulations, Optical image encryption, Optical information security, Computer security

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Proceedings Article | 5 November 2014 Paper

Optical image encryption based on a modified radial shearing interferometer

Dajiang Lu, Wenqi He, Xiang Peng

Proceedings Volume 9273, 927313 (2014) https://doi.org/10.1117/12.2065934

KEYWORDS: Image encryption, Shearing interferometers, Image processing, Optical image encryption, Modulation, Numerical simulations, Digital holography, Computer simulations, Optoelectronics, Image retrieval

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SPIE Journal Paper | 27 June 2014 Open Access

Two-step phase-shifting fluorescence incoherent holographic microscopy

Wan Qin, Xiaoqi Yang, Yingying Li, Xiang Peng, Hai Yao, Xinghua Qu, Bruce Gao

JBO, Vol. 19, Issue 06, 060503, (June 2014) https://doi.org/10.1117/12.10.1117/1.JBO.19.6.060503

KEYWORDS: Holograms, Phase shifts, Luminescence, Holography, Spatial light modulators, 3D image processing, Modulation, Linear filtering, Microscopy, Microscopes

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Proceedings Article | 1 May 2014 Paper

Ray-based calibration for the micro optical metrology system

Yongkai Yin, Meng Wang, Ameng Li, Xiaoli Liu, Xiang Peng

Proceedings Volume 9132, 91320K (2014) https://doi.org/10.1117/12.2051918

KEYWORDS: Calibration, 3D modeling, Imaging systems, 3D metrology, 3D image processing, Stereoscopy, Systems modeling, Microscopy, Optical metrology, Distortion

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Proceedings Article | 1 May 2014 Paper

Phase aided 3D imaging and modeling: dedicated systems and case studies

Yongkai Yin, Dong He, Zeyi Liu, Xiaoli Liu, Xiang Peng

Proceedings Volume 9132, 91320Q (2014) https://doi.org/10.1117/12.2051850

KEYWORDS: Imaging systems, 3D image processing, 3D metrology, 3D modeling, Calibration, Cameras, 3D acquisition, Systems modeling, Stereoscopy, Prototyping

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Proceedings Article | 1 May 2014 Paper

Fingerprint authentication via joint transform correlator and its application in remote access control of a 3D microscopic system

Wenqi He, Hongji Lai, Meng Wang, Zeyi Liu, Yongkai Yin, Xiang Peng

Proceedings Volume 9132, 91321C (2014) https://doi.org/10.1117/12.2052154

KEYWORDS: Optical correlators, Joint transforms, Control systems, Computer networks, Network security, Computer security, Ions, Computer programming, Internet, Neodymium

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Proceedings Article | 1 May 2014 Paper

Remote laboratory for phase-aided 3D microscopic imaging and metrology

Meng Wang, Yongkai Yin, Zeyi Liu, Wenqi He, Boqun Li, Xiang Peng

Proceedings Volume 9132, 913205 (2014) https://doi.org/10.1117/12.2052068

KEYWORDS: 3D image processing, 3D metrology, Metrology, Imaging systems, Stereoscopy, Data storage, Cameras, Computer security, Computer networks, 3D image reconstruction

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Proceedings Article | 12 March 2014 Paper

Fast fluorescence holographic microscopy

Wan Qin, Xiaoqi Yang, Yingying Li, Xiang Peng, Xinghua Qu, Hai Yao, Bruce Gao

Proceedings Volume 8949, 89491W (2014) https://doi.org/10.1117/12.2041839

KEYWORDS: Spatial light modulators, Luminescence, Holography, Microscopy, Holograms, Zone plates, Optical filters, 3D image processing, Spherical lenses, Objectives

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Proceedings Article | 28 September 2013 Paper

1D-scanning addressable multiregional multifocal multiphoton microscopy

Wan Qin, Yonghong Shao, Honghai Liu, Xiang Peng, Hanben Niu, Bruce Gao

Proceedings Volume 8845, 884517 (2013) https://doi.org/10.1117/12.2024325

KEYWORDS: Spatial light modulators, Multiphoton microscopy, Imaging systems, Cameras, Beam splitters, Computer generated holography, Image resolution, Confocal microscopy, Electron multiplying charge coupled devices, Microscopes

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Proceedings Article | 26 September 2013 Paper

Real-time 3D imaging by using color structured light based on Hilbert transform

Jiping Guo, Xiang Peng, Jiping Yu, Xiaoli Liu, Ameng Li, Meng Wang

Proceedings Volume 8856, 885624 (2013) https://doi.org/10.1117/12.2022689

KEYWORDS: Stereoscopy, 3D image processing, Data acquisition, Fringe analysis, Phase shifting, Demodulation, Fourier transforms, 3D acquisition, Real time imaging, Structured light

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SPIE Journal Paper | 11 June 2013 Open Access

Laser guidance–based cell detection in a microfluidic biochip

Wan Qin, Lucas Schmidt, Xiaoqi Yang, Lina Wei, Ting Huang, Julie Yuan, Xiang Peng, Xiaocong Yuan, Bruce Gao

JBO, Vol. 18, Issue 06, 060502, (June 2013) https://doi.org/10.1117/12.10.1117/1.JBO.18.6.060502

KEYWORDS: Microfluidics, Neurons, CMOS cameras, Particles, Spinal cord, Laser optics, Luminescence, Biomedical optics, Microscopes, Flow cytometry

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Proceedings Article | 9 March 2013 Paper

Laser guidance in a microfluidic biochip

Wan Qin, Lucas Schmidt, Xiaoqi Yang, Lina Wei, Ting Huang, Julie Yuan, Zhen Ma, Xiang Peng, Xiaocong Yuan, Bruce Gao

Proceedings Volume 8615, 86150S (2013) https://doi.org/10.1117/12.2003255

KEYWORDS: Microfluidics, Particles, Neurons, Geometrical optics, CMOS cameras, Biomedical optics, Luminescence, Laser scattering, Scattering, Laser development

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Proceedings Article | 20 November 2012 Paper

A method for phase unwrapping base digital spackle correlation

Dong He, Ameng Li, Xiaoli Liu, Xiang Peng

Proceedings Volume 8563, 856317 (2012) https://doi.org/10.1117/12.999965

KEYWORDS: Cameras, Speckle pattern, 3D metrology, Speckle, Phase shifts, Projection systems, Calibration, Imaging systems, Computing systems, 3D modeling

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Proceedings Article | 15 October 2012 Paper

Automatic registration of range images combined with the system calibration and global ICP

Xiaoli Liu, Xinhua He, Zeyi Liu, Dong He, Ameng Li, Wenqi He, Xiang Peng

Proceedings Volume 8499, 84991X (2012) https://doi.org/10.1117/12.929733

KEYWORDS: Sensors, Calibration, Image registration, 3D metrology, 3D image processing, Range image registration, Optical testing, Image processing, Charge-coupled devices, Sensor calibration

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Proceedings Article | 15 October 2012 Paper

Center location of circular targets with surface fitting method

Yongkai Yin, Meng Wang, Xiaoli Liu, Xiang Peng

Proceedings Volume 8499, 84991U (2012) https://doi.org/10.1117/12.929246

KEYWORDS: Gaussian filters, Computer simulations, Detection and tracking algorithms, Machine vision, Edge detection, Image filtering, Digital image processing, 3D modeling, Signal to noise ratio, Optoelectronics

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Proceedings Article | 15 October 2012 Paper

Two-factor authentication system based on optical interference and one-way hash function

Wenqi He, Xiang Peng, Xiangfeng Meng, Xiaoli Liu

Proceedings Volume 8499, 849909 (2012) https://doi.org/10.1117/12.928458

KEYWORDS: Image encryption, Image processing, Computer simulations, Neodymium, Databases, Phase retrieval, Spatial light modulators, Diffraction, Optoelectronics, Modulation

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Proceedings Article | 15 October 2012 Paper

Correction of circular center deviation in perspective projection

Dong He, Xiaoli Liu, Yongkai Yin, Ameng Li, Xiang Peng

Proceedings Volume 8499, 84991V (2012) https://doi.org/10.1117/12.928171

KEYWORDS: Cameras, Image processing, Error analysis, Digital image processing, Imaging systems, Machine vision, Device simulation, Signal to noise ratio, Current controlled current source, Computer simulations

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Proceedings Article | 13 September 2012 Paper

A modified phase unwrapping algorithm based on phase filtering

Hailong Chen, Xiaoli Liu, Yabin Ding, Xiang Peng

Proceedings Volume 8494, 84940P (2012) https://doi.org/10.1117/12.945218

KEYWORDS: Digital filtering, Fringe analysis, Projection systems, Phase shifting, Image filtering, Spatial frequencies, Cameras, Error analysis, Demodulation, Phase shift keying

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SPIE Journal Paper | 3 April 2012 Open Access

Addressable multiregional and multifocal multiphoton microscopy based on a spatial light modulator

Yonghong Shao, Junle Qu, Xiang Peng, Hanben Niu, Wan Qin, Honghai Liu, Bruce Gao

JBO, Vol. 17, Issue 03, 030505, (April 2012) https://doi.org/10.1117/12.10.1117/1.JBO.17.3.030505

KEYWORDS: Spatial light modulators, Multiphoton microscopy, Scanners, Microscopes, Image resolution, Confocal microscopy, Beam splitters, Mirrors, Diffractive optical elements, Microlens

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Proceedings Article | 23 February 2012 Paper

Multifocus nonlinear optical microscopy based on SLM

Wan Qin, Yonghong Shao, Honghai Liu, Junle Qu, Xiang Peng, Hanben Niu, Bruce Gao

Proceedings Volume 8226, 82262R (2012) https://doi.org/10.1117/12.909558

KEYWORDS: Spatial light modulators, Image resolution, Microscopes, Imaging systems, Cameras, Multiphoton microscopy, Beam splitters, Computer generated holography, Spatial resolution, Electron multiplying charge coupled devices

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Proceedings Article | 24 September 2011 Paper

A new planar pattern for camera calibration

Xiaoli Liu, Dong He, Yongkai Yin, Chenggong Zhang, Xiang Peng

Proceedings Volume 8135, 81351H (2011) https://doi.org/10.1117/12.892901

KEYWORDS: Calibration, Cameras, 3D image processing, 3D acquisition, Distortion, Imaging systems, 3D metrology, 3D modeling, Projection systems, Image processing

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Proceedings Article | 10 September 2011 Paper

Phase reconstruction method using frequency shifting

Chenggong Zhang, Yingjian Guan, Xiaoli Liu, Hailong Chen, Xiang Peng

Proceedings Volume 8133, 813306 (2011) https://doi.org/10.1117/12.892992

KEYWORDS: Phase measurement, Reconstruction algorithms, Fringe analysis, Computer simulations, Phase shifts, Phase shift keying, Precision measurement, Projection systems, Cameras, Commercial off the shelf technology

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SPIE Journal Paper | 1 August 2011 Open Access

Universal and special keys based on phase-truncated Fourier transform

Wan Qin, Xiang Peng, Bruce Gao, Xiangfeng Meng

OE, Vol. 50, Issue 08, 080501, (August 2011) https://doi.org/10.1117/12.10.1117/1.3607421

KEYWORDS: Fourier transforms, Computer programming, Computer security, Phase retrieval, Cryptography, Optical engineering, Computer simulations, Network security, Optoelectronics, Optoelectronic devices

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SPIE Journal Paper | 1 June 2011

Vulnerability to chosen-plaintext attack of optoelectronic information encryption with phase-shifting interferometry

Wan Qin, Xiang Peng, Xiangfeng Meng, Bruce Gao

OE, Vol. 50, Issue 06, 065601, (June 2011) https://doi.org/10.1117/12.10.1117/1.3590725

KEYWORDS: Phase interferometry, Optoelectronics, Cryptanalysis, Fourier transforms, Computer simulations, Optical engineering, Computer security, Charge-coupled devices, Information security, Computer programming

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Proceedings Article | 3 March 2011 Paper

3D myofibril imaging in live cardiomyocytes via hybrid SHG-TPEF microscopy

Yonghong Shao, Honghai Liu, Tong Ye, Tom Borg, Junle Qu, Xiang Peng, Hanben Niu, Bruce Gao

Proceedings Volume 7903, 79030F (2011) https://doi.org/10.1117/12.875607

KEYWORDS: Second-harmonic generation, Heart, 3D image processing, Imaging systems, Microscopes, Polarization, Scanners, Stereoscopy, Microscopy, Luminescence

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SPIE Journal Paper | 1 February 2011

Cryptanalysis of optical encryption schemes based on joint transform correlator architecture

Qin Wan, Xiang Peng, Xiangfeng Meng

OE, Vol. 50, Issue 02, 028201, (February 2011) https://doi.org/10.1117/12.10.1117/1.3533028

KEYWORDS: Joint transforms, Cryptanalysis, Optical correlators, Computer security, Image processing, Optical engineering, Nonlinear optics, Cryptography, Fourier transforms, Computer simulations

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Proceedings Article | 2 December 2010 Paper

Research on optical one-way cryptosystem

Wenqi He, Xiang Peng, Xiangfeng Meng

Proceedings Volume 7851, 78510B (2010) https://doi.org/10.1117/12.868289

KEYWORDS: Fourier transforms, Symmetric-key encryption, Modulation, Computer security, Hybrid optics, Resistance, Legal, Cryptography, Computer programming, Diffusion

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Proceedings Article | 11 November 2010 Paper

Calibration target reconstruction for 3-D vision inspection system of large-scale engineering objects

Yongkai Yin, Xiang Peng, Yingjian Guan, Xiaoli Liu, Ameng Li

Proceedings Volume 7855, 78550V (2010) https://doi.org/10.1117/12.870287

KEYWORDS: Calibration, Cameras, 3D vision, Inspection, 3D acquisition, 3D metrology, Systems engineering, Image analysis, Imaging systems, 3D modeling

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Proceedings Article | 11 November 2010 Paper

3D photorealistic model with texture blending

Xingming Liu, Xiang Peng, Ameng Li, Yingjian Guan, Xiaoli Liu

Proceedings Volume 7850, 78502D (2010) https://doi.org/10.1117/12.870545

KEYWORDS: 3D modeling, RGB color model, 3D image processing, Content addressable memory, 3D acquisition, Volume rendering, Cameras, Electroluminescence, Fringe analysis, Instrument modeling

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Proceedings Article | 8 September 2010 Paper

Error analysis of two methods for range-images registration

Xiaoli Liu, Yongkai Yin, Ameng Li, Dong He, Xiang Peng

Proceedings Volume 7799, 77990S (2010) https://doi.org/10.1117/12.860005

KEYWORDS: Image registration, Error analysis, Optimization (mathematics), Range image registration, Metrology, 3D metrology, Detection and tracking algorithms, Optoelectronics, 3D image processing, 3D modeling

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Proceedings Article | 8 September 2010 Paper

Center location error correction of circular targets

Yongkai Yin, Xiaoli Liu, Ameng Li, Chenggong Zhang, Dong He, Xiang Peng

Proceedings Volume 7798, 779824 (2010) https://doi.org/10.1117/12.860017

KEYWORDS: Error analysis, Cameras, Photogrammetry, Imaging systems, Calibration, Detection and tracking algorithms, Reconstruction algorithms, Lawrencium, 3D modeling, Optoelectronics

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Proceedings Article | 7 July 2009 Paper

2.5D virtual reality visualisation of shearography strain data from a canvas painting

R. Groves, A. Li, X. Liu, S. Hackney, X. Peng, W. Osten

Proceedings Volume 7391, 739109 (2009) https://doi.org/10.1117/12.827519

KEYWORDS: Shearography, Virtual reality, Volume rendering, Visualization, Interferometers, Image processing, Diagnostics, Photography, Mirrors, CCD cameras

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Proceedings Article | 3 October 2008 Paper

Sub-pixel matching with consideration of lens distortion

Shihao Dong, Xiaobo Zhao, Yongkai Yin, Jindong Tian, Xiang Peng

Proceedings Volume 7155, 71552H (2008) https://doi.org/10.1117/12.814591

KEYWORDS: Distortion, Cameras, 3D metrology, 3D vision, Fringe analysis, Phase shifts, 3D image processing, Data fusion, Calibration, Image fusion

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Proceedings Article | 29 November 2007 Paper

Known plain text attack on the double phase encoding and its implementation with parallel hardware

Hengzheng Wei, Xiang Peng, Haitao Liu, Songlin Feng, Bruce Gao

Proceedings Volume 6837, 683703 (2007) https://doi.org/10.1117/12.755022

KEYWORDS: Digital signal processing, Signal processing, Phase retrieval, Fourier transforms, Image restoration, Computer programming, Image encryption, Image retrieval, Cryptanalysis, Algorithm development

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Proceedings Article | 28 November 2007 Paper

Integrated optical 3D digital imaging based on DSP scheme

Xiaodong Wang, Xiang Peng, Bruce Gao

Proceedings Volume 6833, 68330B (2007) https://doi.org/10.1117/12.755849

KEYWORDS: Digital signal processing, Fringe analysis, 3D image processing, Video, Signal processing, Image processing, Digital imaging, Field programmable gate arrays, Stereoscopy, Projection systems

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Proceedings Article | 28 November 2007 Paper

A coarse registration method of range image based on SIFT

Xiaoli Liu, Xiang Peng, Yongkai Yin, Jindong Tian, Ameng Li, Xiaobo Zhao

Proceedings Volume 6833, 68330X (2007) https://doi.org/10.1117/12.756264

KEYWORDS: Image registration, 3D modeling, Image restoration, 3D image processing, Fringe analysis, Image scaling, Reverse modeling, Cameras, Image acquisition, Range image registration

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Proceedings Article | 28 November 2007 Paper

A generalized temporal phase unwrapping algorithm

Jindong Tian, Xiang Peng, Xiaobo Zhao

Proceedings Volume 6834, 683416 (2007) https://doi.org/10.1117/12.756175

KEYWORDS: Signal to noise ratio, Error analysis, Reconstruction algorithms, 3D modeling, Fringe analysis, Computer simulations, Phase measurement, Reliability, Teeth, Projection systems

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Proceedings Article | 27 November 2007 Paper

Three-dimensional digital imaging based on temporal phase unwrapping with parallel DSP

Xiaodong Wang, Peng Xiang, Jindong Tian

Proceedings Volume 6723, 67232X (2007) https://doi.org/10.1117/12.783362

KEYWORDS: Digital signal processing, Fringe analysis, 3D image processing, Signal processing, Phase shifts, Digital imaging, Imaging systems, Video, 3D modeling, 3D metrology

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Proceedings Article | 24 September 2007 Paper

The new methods for registration and integration of range images

Xiaoli Liu, Ameng Li, Pengdong Gao, Jindong Tian, Xiang Peng

Proceedings Volume 6696, 66961Y (2007) https://doi.org/10.1117/12.733658

KEYWORDS: Image registration, 3D modeling, 3D image processing, Image processing, Integrated modeling, 3D metrology, Cameras, Image acquisition, Optical metrology, Range image registration

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Proceedings Article | 14 September 2007 Paper

Three-dimensional imaging with acousto-optic fringe projector and piecewise temporal phase unwrapping

Jindong Tian, Xiaobo Zhao, Xiaoli Liu, Xiang Peng

Proceedings Volume 6671, 66711B (2007) https://doi.org/10.1117/12.733621

KEYWORDS: Spatial frequencies, Stereoscopy, Fringe analysis, 3D image processing, Acousto-optics, Projection systems, Algorithm development, Reconstruction algorithms, Tolerancing, Imaging systems

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Proceedings Article | 28 February 2006 Paper

Hyperboloid sol gel microlens array fabricated by soft-lithography for optical coupling

Miao He, Jing Bu, Xiaocong Yuan, Hanben Niu, Xiang Peng

Proceedings Volume 6126, 61260O (2006) https://doi.org/10.1117/12.659765

KEYWORDS: Microlens, Sol-gels, Single mode fibers, Fabrication, Photoresist materials, Spherical lenses, Microlens array, Monochromatic aberrations, Glasses, Aspheric lenses

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Proceedings Article | 2 February 2006 Paper

Phase retrieval for in-line hard x-ray phase-contrast imaging with the Yang-Gu algorithm

Bin Yu, Xiang Peng, Jindong Tian, Hanben Niu

Proceedings Volume 6026, 60260Z (2006) https://doi.org/10.1117/12.667425

KEYWORDS: Reconstruction algorithms, Hard x-rays, X-ray imaging, X-rays, Phase retrieval, Diffraction, X-ray diffraction, Imaging systems, Computer simulations, Diagnostics

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Proceedings Article | 20 January 2006 Paper

Optical image encryption based on cascaded iterative angular spectrum algorithm and its implementation with parallel hardware

Bin Yu, Xiang Peng, Jindong Tian, Hanben Niu

Proceedings Volume 6027, 60271G (2006) https://doi.org/10.1117/12.667955

KEYWORDS: Image encryption, Computer security, Free space, Digital signal processing, Detection and tracking algorithms, Image processing, Image quality, Information security, Optical image encryption, Free space optics

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Proceedings Article | 20 January 2006 Paper

Audio-signal watermarking in 3-D space with a virtual-optics imaging modality

Peng Zhang, Xiang Peng

Proceedings Volume 6027, 60270J (2006) https://doi.org/10.1117/12.667756

KEYWORDS: Digital watermarking, Transform theory, 3D image processing, Signal processing, 3D image reconstruction, Filtering (signal processing), Signal detection, Near field diffraction, Electronic filtering, Digital signal processing

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Proceedings Article | 20 January 2006 Paper

Design and fabrication of micro-optical elements for the generation of various novel beams and its applications in optical tweezers

X. Yuan, B. Ahluwalia, W. Cheong, L. Zhang, W. Lee, K. Moh, S. Tao, H. Niu, X. Peng

Proceedings Volume 6027, 602709 (2006) https://doi.org/10.1117/12.667706

KEYWORDS: Spiral phase plates, Optical tweezers, Bessel beams, Optical components, Gaussian beams, Silica, Optical vortices, Axicons, Electron beam lithography, Refractive index

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Proceedings Article | 27 August 2005 Paper

Cell diagnosis based on optical forces

Meghna Sridharan, Yanzhang Wei, Xiang Peng, Bruce Gao

Proceedings Volume 5930, 59301K (2005) https://doi.org/10.1117/12.617134

KEYWORDS: Particles, Refractive index, Laser scattering, Scattering, Laser optics, Photons, Beam shaping, MATLAB, Optical tweezers, Convection

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In this article, we report the development of a novel system for distinguishing various types of cell based on the differences in the values of optical forces experienced by them. The laser induced optical forces arise when molecules comprising the cell interact with the photons of the laser beam resulting in an exchange of momentum. The basic principle is based on the phenomenon of laser cell guidance: a cell, in proximity of a weakly focused laser beam experiences a net force which attracts it to the centre of the beam and propels it along the axis of the beam. The 'guidance' is thus a direct result of the optical forces experienced by the cell. The guidance force experienced by the cell is directly related to the amount of momentum exchange, which in turn depends on factors such as the cell shape and size, the refractive index difference between the materials composing the cell and the materials in the culture media, and the properties of the beam. Since different cell types have different physical properties, they experience different optical (guiding) forces when they interact with the same laser beam. Since guidance force causes the cells to be propelled along the axis of the beam, the force with which the cell is propelled will directly determine the velocity with which the cell will move along the beam. Hence different types of cells will move with different velocities. Thus by studying this motion of cell, we in turn study the forces experienced by the cell. We propose that by analyzing the velocity with which cells are being guided by a laser beam, we can develop a technique to distinguish various cell types. Extensive GLMT theories calculate and predict theoretically the forces experienced by particles of a given size and refractive index for a given set of beam parameters. These theories are used as the basis to make judgments about the validity of our velocity and force calculation. The velocity assessments are conducted for a statistically significant number of cells from various cell types to explore the systematic difference among various groups of cells and, accordingly, the reliability of the developed method is discussed.

Proceedings Article | 10 February 2005 Paper

Multiresolution 3D imaging with temporal sequential fringe projector

Jindong Tian, Xiang Peng, Bin Yu, Bin Wu, Peng Zhang, Linbin Wei, Wenjie Qiu

Proceedings Volume 5638, (2005) https://doi.org/10.1117/12.572215

KEYWORDS: Fringe analysis, Stereoscopy, Projection systems, Imaging systems, Computer programming, 3D image processing, 3D modeling, Phase shifts, Cameras, Frame grabbers

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Proceedings Article | 10 February 2005 Paper

Dynamic 3D profilometry with dual-acousto-optic fringe projection

Xiang Peng, Jindong Tian, Peng Zhang, Linbin Wei, Wenjie Qiu, Enbang Li, Dawei Zhang

Proceedings Volume 5638, (2005) https://doi.org/10.1117/12.572213

KEYWORDS: Fringe analysis, Acousto-optics, Projection systems, Phase shift keying, Neodymium, Diffraction, Beam splitters, Acoustics, Objectives, CCD cameras

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Proceedings Article | 7 February 2005 Paper

Optical trapping and micromanipulation using microbeam shaping created by micro-optical elements

X.-C. Yuan, W.M. Lee, W.C. Cheong, S.H. Tao, B.S. Ahluwalia, K.J. Moh, M. He, H.B. Niu, X. Peng

Proceedings Volume 5636, (2005) https://doi.org/10.1117/12.571969

KEYWORDS: Spiral phase plates, Optical tweezers, Bessel beams, Optical components, Particles, Axicons, Modulation, Beam propagation method, Chemical elements, Optical manipulation

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Proceedings Article | 11 January 2005 Paper

High-security data encryption system with virtual optics and its implementation with parallel DSP

Peng Zhang, Xiang Peng, Lilong Cai, Hanben Niu

Proceedings Volume 5642, (2005) https://doi.org/10.1117/12.571889

KEYWORDS: Digital signal processing, Image encryption, Computer security, Multimedia, Optical signal processing, Network security, Signal processing, Data modeling, Image processing, Telecommunications

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Proceedings Article | 11 January 2005 Paper

Virtual-optical information security system based on public key infrastructure

Xiang Peng, Peng Zhang, Lilong Cai, Hanben Niu

Proceedings Volume 5642, (2005) https://doi.org/10.1117/12.571875

KEYWORDS: Receivers, Data modeling, Information security, Data communications, Computer security, Symmetric-key encryption, Telecommunications, Network security, Data hiding, Systems modeling

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Proceedings Article | 10 January 2005 Paper

Design of spectrum-dividing system for binary optic infrared imaging spectrometer

Bin Yu, Xiang Peng

Proceedings Volume 5640, (2005) https://doi.org/10.1117/12.567760

KEYWORDS: Infrared imaging, Spectroscopy, Imaging systems, Infrared radiation, Infrared spectroscopy, Diffraction, Mid-IR, Long wavelength infrared, Binary data, Infrared detectors

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Proceedings Article | 19 March 2004 Paper

Large data processing based on simplification and subdivision

Pengdong Gao, Zeyi Liu, Xiang Peng

Proceedings Volume 5444, (2004) https://doi.org/10.1117/12.561113

KEYWORDS: 3D modeling, 3D image processing, Image processing, Data processing, Imaging systems, 3D acquisition, Reverse modeling, Reverse engineering, Digital imaging, Data acquisition

Read Abstract +

SPIE Journal Paper | 1 July 2003

Color texture extraction from fringe image based on full-field projection

Zonghua Zhang, David Zhang, Xiang Peng, Xiaotang Hu

OE, Vol. 42, Issue 07, (July 2003) https://doi.org/10.1117/12.10.1117/1.1580833

KEYWORDS: Feature extraction, 3D image processing, Fringe analysis, Volume rendering, Imaging systems, Cameras, 3D displays, Data acquisition, Modulation, Image acquisition

Proceedings Article | 16 September 2002 Paper

Image encryption with virtual optics

Xiang Peng, Zhiyong Cui, Tieniu Tan

Proceedings Volume 4929, (2002) https://doi.org/10.1117/12.483197

KEYWORDS: Image encryption, Optical signal processing, Imaging systems, Computer security, Data hiding, Computer simulations, Near field diffraction, Precision measurement, Optical pattern recognition, Network security

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Proceedings Article | 5 September 2002 Paper

PC-based 3D craniofacial reconstruction

Zonghua Zhang, Xiang Peng, Changqing Liu, Xiaotang Hu

Proceedings Volume 4921, (2002) https://doi.org/10.1117/12.481747

KEYWORDS: Skull, Computed tomography, Image segmentation, 3D image processing, Medical imaging, Surgery, 3D image reconstruction, Image processing, 3D modeling, 3D displays

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Proceedings Article | 5 September 2002 Paper

Reverse engineering with 3D imaging and modeling

Xiang Peng, Changqing Liu, Zonghua Zhang, Peihua Gu

Proceedings Volume 4921, (2002) https://doi.org/10.1117/12.481730

KEYWORDS: 3D modeling, Reverse modeling, Image registration, Reverse engineering, Image segmentation, Visualization, 3D image processing, Image fusion, Solid state lighting, Stereoscopy

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Proceedings Article | 31 July 2002 Paper

New 3D imaging sensor: gaining range and texture

Zonghua Zhang, David Zhang, Xiang Peng, Xiaotang Hu

Proceedings Volume 4875, (2002) https://doi.org/10.1117/12.477092

KEYWORDS: Stereoscopy, Fringe analysis, 3D modeling, 3D image processing, Imaging systems, Sensors, Data acquisition, Visualization, Manufacturing, Reverse modeling

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Proceedings Article | 9 October 2000 Paper

3D computer vision system based on spatial phase mapping

Xiang Peng, Weiqiang Shi, Zonghua Zhang, Xiaotang Hu

Proceedings Volume 4221, (2000) https://doi.org/10.1117/12.402594

KEYWORDS: 3D vision, Computing systems, Fringe analysis, 3D image processing, Computer architecture, Data acquisition, Machine vision, Computer vision technology, 3D acquisition, 3D modeling

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Proceedings Article | 9 October 2000 Paper

New method for multiview range image fusion

Zonghua Zhang, Xiang Peng, Weiqiang Shi, Xiaotang Hu

Proceedings Volume 4221, (2000) https://doi.org/10.1117/12.402595

KEYWORDS: Solid state lighting, Image fusion, Image processing, Digital imaging, 3D modeling, Solid modeling, Reverse modeling, Visual process modeling, 3D acquisition, 3D image processing

Read Abstract +

Proceedings Article | 10 August 1998 Paper

Using digital spatial phase-shifting technique to gain quasi-hologram

Shaoming Zhu, Xiang Peng, Zonghua Zhang, Xiaotang Hu

Proceedings Volume 3558, (1998) https://doi.org/10.1117/12.318429

KEYWORDS: Volume rendering, Composites, Phase shifts, 3D image processing, Moire patterns, Fringe analysis, Cameras, 3D displays, 3D acquisition, Phase measurement

Read Abstract +

Proceedings Article | 1 December 1991 Paper

Study of measuring skin blood flow using speckle counting

Ying Liu, Shining Ma, Fuli Du, Xiang Peng, Shenghua Ye

Proceedings Volume 1554, (1991) https://doi.org/10.1117/12.49501

KEYWORDS: Skin, Speckle, Blood circulation, Light scattering, Natural surfaces, Signal detection, Blood, Laser scattering, Dynamic light scattering, Speckle pattern

Read Abstract +

Showing 5 of 94 publications

Conference Committee Involvement (32)

Optical Metrology and Inspection for Industrial Applications XI

12 October 2024 | Nantong, Jiangsu, China

Optical Metrology and Inspection for Industrial Applications X

15 October 2023 | Beijing, China

Optical Measurement Systems for Industrial Inspection XIII

26 June 2023 | Munich, Germany

Holography, Diffractive Optics, and Applications XII

5 December 2022 | Online Only, China

Optical Design and Testing XII

5 December 2022 | Online Only, China

Optical Metrology and Inspection for Industrial Applications IX

5 December 2022 | Online Only, China

Optical Metrology and Inspection for Industrial Applications VIII

11 October 2021 | Nantong, JS, China

Holography, Diffractive Optics, and Applications XI

10 October 2021 | Nantong, JS, China

Optical Design and Testing XI

10 October 2021 | Nantong, JS, China

Optical Measurement Systems for Industrial Inspection XII

21 June 2021 | Online Only, Germany

Optical Design and Testing X

12 October 2020 | Online Only, China

Holography, Diffractive Optics, and Applications X

12 October 2020 | Online Only, China

Optical Metrology and Inspection for Industrial Applications VII

12 October 2020 | Online Only, China

Holography, Diffractive Optics, and Applications IX

21 October 2019 | Hangzhou, China

Optical Metrology and Inspection for Industrial Applications VI

21 October 2019 | Hangzhou, China

Optical Design and Testing IX

21 October 2019 | Hangzhou, China

Optical Measurement Systems for Industrial Inspection XI

24 June 2019 | Munich, Germany

Holography, Diffractive Optics, and Applications VIII

11 October 2018 | Beijing, China

Optical Design and Testing VIII

11 October 2018 | Beijing, China

Optical Metrology and Inspection for Industrial Applications V

11 October 2018 | Beijing, China

Holography, Diffractive Optics, and Applications VII

12 October 2016 | Beijing, China

Optical Metrology and Inspection for Industrial Applications IV

12 October 2016 | Beijing, China

Optical Design and Testing VII

12 October 2016 | Beijing, China

Optical Metrology and Inspection for Industrial Applications III

9 October 2014 | Beijing, China

Optical Design and Testing VI

9 October 2014 | Beijing, China

Optical Design and Testing V

5 November 2012 | Beijing, China

Interferometry XVI: Applications

14 August 2012 | San Diego, California, United States

Optical Design and Testing IV

18 October 2010 | Beijing, China

Interferometry XV: Applications

3 August 2010 | San Diego, California, United States

Optoelectronic Information Security

19 October 2009 | Shanghai, China

Interferometry XIV: Applications

13 August 2008 | San Diego, California, United States

Interferometry XIII: Applications

16 August 2006 | San Diego, California, United States

Showing 5 of 32 Conference Committees

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