Prof. Changku Sun Profile

Prof. Changku Sun

at Tianjin Univ.

SPIE Involvement:

Author

Publications (37)

Proceedings Article | 8 July 2022 Paper

Paper

A visual/IMU system for head pose estimation based on non-cooperative targets

Changku Sun, Jingjing He, Peng Wang, Baoshang Zhang, Chunyun Wang, Jianguo Cui

Proceedings Volume 12282, 122820D (2022) https://doi.org/10.1117/12.2607909

KEYWORDS: Cameras, Visualization, Head, Calibration, Filtering (signal processing)

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Proceedings Article | 8 July 2022 Paper

Paper

Research on helmet integrated positioning algorithm based on vision and dual MIMU

Yupeng Li, Peng Wang, Changku Sun, Jinfeng Zhang

Proceedings Volume 12282, 122820Q (2022) https://doi.org/10.1117/12.2611727

KEYWORDS: Filtering (signal processing), Head, Error analysis, Detection and tracking algorithms, Sensors, Computer simulations, Velocity measurements, Sensor fusion, Data fusion

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Proceedings Article | 8 July 2022 Paper

Paper

Adaptive loosely-tightly coupled algorithm for head attitude tracking

Huiling Peng, Changku Sun, Peng Wang

Proceedings Volume 12282, 122820M (2022) https://doi.org/10.1117/12.2608008

KEYWORDS: Head, Detection and tracking algorithms, Filtering (signal processing), Sensors, Error analysis, Electronic filtering, Image sensors, Velocity measurements

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Proceedings Article | 24 November 2021 Paper

Paper

An aberration correction method and circuit implementation for AR helmet mounted display optical system

Baoshang Zhang, Changku Sun, HaiJun Zhang, Peng Wang

Proceedings Volume 12063, 1206302 (2021) https://doi.org/10.1117/12.2601042

KEYWORDS: Head-mounted displays, Aberration correction, Optical design, Augmented reality, Heads up displays, Distortion, Imaging systems, Autoregressive models, Nonlinear optics, Mirrors

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Proceedings Article | 12 March 2020 Paper

Paper

A new pose measurement method based on microlens arrays

Changku Sun, Yahui Zu, Peng Wang

Proceedings Volume 11439, 114390F (2020) https://doi.org/10.1117/12.2542185

KEYWORDS: Microlens array, Microlens, Visualization, Visual optics

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Proceedings Article | 12 March 2020 Paper

Paper

Indoor point cloud recognition with deep convolutional networks

Jiliang Li, Luhua Fu, Peng Wang, Changku Sun

Proceedings Volume 11439, 1143909 (2020) https://doi.org/10.1117/12.2541129

KEYWORDS: Clouds, 3D modeling, LIDAR, Convolution, Data modeling, 3D image processing, Target detection, Time of flight cameras

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Proceedings Article | 12 March 2020 Paper

Paper

Face 3D measurement by phase matching with infrared grating projection

Rubiao Ren, Peng Wang, Duo Zhou, Changku Sun

Proceedings Volume 11439, 114390P (2020) https://doi.org/10.1117/12.2543269

KEYWORDS: Projection systems, Cameras, 3D metrology, Infrared radiation, Microelectromechanical systems, Digital Light Processing, Infrared imaging, Infrared cameras, 3D vision, Structured light

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Proceedings Article | 12 March 2020 Paper

Paper

A noncontact full-field flatness measuring system based on fringe projection

Duo Zhou, Changku Sun, Yingjie Zhang, Peng Wang

Proceedings Volume 11439, 114391B (2020) https://doi.org/10.1117/12.2549208

KEYWORDS: Cameras, Calibration, Projection systems, Polarizers, Fringe analysis, Clouds, Error analysis, Scanners, Associative arrays, Manufacturing

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Proceedings Article | 12 March 2020 Paper

Paper

3D extrinsic joint calibration of 3D-Flash-LiDAR and camera system

Zean Bu, Changku Sun, Peng Wang, Hang Dong

Proceedings Volume 11439, 1143906 (2020) https://doi.org/10.1117/12.2541112

KEYWORDS: Calibration, Cameras, LIDAR, Imaging systems, Stereoscopic cameras, Clouds, Sensors, 3D acquisition, Laser range finders

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Proceedings Article | 12 January 2018 Paper

Paper

Vision and dual IMU integrated attitude measurement system

Xiaoting Guo, Changku Sun, Peng Wang, Huang Lu

Proceedings Volume 10621, 106210U (2018) https://doi.org/10.1117/12.2286826

KEYWORDS: System integration, Sensors, Motion measurement, Calibration, Gyroscopes, Data fusion, Cameras, Microelectromechanical systems, Image processing, Detection and tracking algorithms

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Proceedings Article | 12 January 2018 Paper

Paper

Method of orthogonally splitting imaging pose measurement

Na Zhao, Changku Sun, Peng Wang, Qian Yang, Xintong Liu

Proceedings Volume 10621, 106210R (2018) https://doi.org/10.1117/12.2286024

KEYWORDS: Distortion, Sensors, Charge-coupled devices, Image sensors, Imaging systems, Mirrors, CCD image sensors, Image restoration, Optical sensors, Visual process modeling

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Proceedings Article | 12 January 2018 Paper

Paper

Pose estimation with correspondences determination

Hang Dong, Changku Sun, Ruizhe Zhu, Peng Wang

Proceedings Volume 10621, 106210V (2018) https://doi.org/10.1117/12.2287303

KEYWORDS: Imaging systems, Computing systems, Cameras, Image processing, Algorithm development, 3D image processing, Calibration, Error analysis, 3D metrology, Iterative methods

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Proceedings Article | 12 January 2018 Paper

Paper

An in-situ measuring method for planar straightness error

Xi Chen, Luhua Fu, Tongyu Yang, Changku Sun, Zhong Wang, Yan Zhao, Changjie Liu

Proceedings Volume 10621, 106211J (2018) https://doi.org/10.1117/12.2295244

KEYWORDS: Sensors, Calibration, Particle swarm optimization

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Proceedings Article | 7 August 2015 Paper

Paper

A new pose measurement system based on orthogonal beam splitting imaging configuration

Xintong Liu, Changku Sun, Peng Wang

Proceedings Volume 9623, 96230O (2015) https://doi.org/10.1117/12.2189026

KEYWORDS: Imaging systems, Charge-coupled devices, Cameras, Beam splitters, Sensors, Computing systems, Calibration, 3D modeling, Mathematical modeling, CCD image sensors

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Proceedings Article | 7 August 2015 Paper

Paper

Research on the multi-angle monocular coordinates measuring system for spatial points

Yihui Zhang, Changku Sun, Peng Wang, Pengfei Sun

Proceedings Volume 9623, 96230P (2015) https://doi.org/10.1117/12.2189032

KEYWORDS: Cameras, Imaging systems, Mathematical modeling, Electro optical modeling, Visual process modeling, Calibration, Sensors, Motion models, Visualization, CCD cameras

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SPIE Journal Paper | 19 February 2015

High dynamic range image acquisition method using proportion integration differentiation controller

Xiaohui Li, Changku Sun, Wang Peng

OE, Vol. 54, Issue 02, 023105, (February 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.2.023105

KEYWORDS: Liquid crystal on silicon, High dynamic range imaging, Cameras, Modulation, Image acquisition, Photomasks, Calibration, CCD image sensors, Image quality, Mathematical modeling

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Proceedings Article | 19 December 2013 Paper

Paper

Online measurement system for the surface inclination of metal workpieces

Peng Yin, Changku Sun, Peng Wang, Qian Yang

Proceedings Volume 9046, 90460Q (2013) https://doi.org/10.1117/12.2035917

KEYWORDS: Metals, Image processing, 3D image processing, CCD cameras, Calibration, 3D modeling, Imaging systems, Reflection, Sensors, Structured light

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Proceedings Article | 19 December 2013 Paper

Paper

High dynamic range image acquisition method for 3D solder paste measurement

Xiaohui Li, Changku Sun, Peng Wang, Yixin Xu

Proceedings Volume 9046, 90460T (2013) https://doi.org/10.1117/12.2036314

KEYWORDS: Liquid crystal on silicon, Imaging systems, Relays, CCD image sensors, Charge-coupled devices, Image acquisition, 3D metrology, Image processing, Inspection, Image quality

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SPIE Journal Paper | 17 May 2012

High-precision automatic online measurement system of engine block top surface holes

Yongqiang Shi, Changku Sun, Yukun Ma, Hongxu Duan, Peng Wang

OE, Vol. 51, Issue 5, 053604, (May 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.5.053604

KEYWORDS: Data modeling, Calibration, Distortion, Imaging systems, Data fusion, Sensors, Charge-coupled devices, Cameras, Zoom lenses, CCD cameras

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Proceedings Article | 12 November 2010 Paper

Paper

UV light source adaptive sensing technology for flue gas measurement

Changku Sun, Chi Zhang, Bo Sun, Bin Liu, Peng Wang

Proceedings Volume 7855, 78552A (2010) https://doi.org/10.1117/12.868991

KEYWORDS: Signal attenuation, Absorption, Spectroscopy, Light sources, Ultraviolet radiation, Lamps, Gases, Light, Calibration, Environmental sensing

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Proceedings Article | 11 November 2010 Paper

Paper

Measuring method for the object pose based on monocular vision technology

Changku Sun, Zimiao Zhang, Peng Wang

Proceedings Volume 7855, 78550Z (2010) https://doi.org/10.1117/12.868984

KEYWORDS: Cameras, Imaging systems, Infrared imaging, Infrared radiation, Light emitting diodes, Visual process modeling, Electro optical modeling, Image processing, Calibration, Navigation systems

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Proceedings Article | 3 February 2009 Paper

Paper

Information extraction method of ultraviolet spectrum measurement of SO2 and NOx

Changku Sun, Shumin Li, Bin Liu, Yumei Zhao

Proceedings Volume 7160, 71600T (2009) https://doi.org/10.1117/12.806672

KEYWORDS: Absorption, Wavelets, Signal to noise ratio, Interference (communication), Calibration, Absorbance, Ultraviolet radiation, Environmental monitoring, Signal processing, Spectroscopy

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Proceedings Article | 3 February 2009 Paper

Paper

Unknown orientation views calibration for the improved Fourier transform profilometry

Changku Sun, Tao Wang, Peng Wang

Proceedings Volume 7160, 71600N (2009) https://doi.org/10.1117/12.806998

KEYWORDS: Calibration, Cameras, Fourier transforms, Projection systems, Imaging systems, 3D metrology, CCD cameras, Digital Light Processing, 3D modeling, Surface plasmons

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Proceedings Article | 27 January 2009 Paper

Paper

Study on flexible calibration method for binocular stereo vision system

Peng Wang, Huashu Sun, Changku Sun

Proceedings Volume 7156, 71560R (2009) https://doi.org/10.1117/12.806676

KEYWORDS: Calibration, Cameras, Stereo vision systems, Imaging systems, 3D metrology, Image processing, Distortion, Distance measurement, Sun, 3D vision

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Proceedings Article | 5 March 2008 Paper

Paper

Monocular vision measurement system for the position and orientation of remote object

Tao Zhou, Changku Sun, Shan Chen

Proceedings Volume 6623, 662311 (2008) https://doi.org/10.1117/12.791428

KEYWORDS: Image processing, Cameras, Image segmentation, Near infrared, Feature extraction, Light, Light sources, Calibration, Target designation, Target acquisition

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Proceedings Article | 5 March 2008 Paper

Paper

3D laser measurement technique of solder paste

Bin Liu, Changku Sun, Xiaodong Zhang, Xiaobing Deng

Proceedings Volume 6623, 662310 (2008) https://doi.org/10.1117/12.791427

KEYWORDS: 3D metrology, Calibration, Laser welding, 3D image processing, Laser applications, CCD cameras, 3D acquisition, Image processing, Control systems, Semiconductors

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SPIE Journal Paper | 1 January 2008

Method of scanning-path determination for color three-dimensional laser measurement

Changku Sun, Peng Wang, Li Tao, Shan Chen

OE, Vol. 47, Issue 01, 013601, (January 2008) https://doi.org/10.1117/12.10.1117/1.2833443

KEYWORDS: Data acquisition, 3D modeling, 3D acquisition, Data modeling, Cameras, Image segmentation, Mathematical modeling, Sensors, Optical engineering, 3D scanning

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Proceedings Article | 19 November 2007 Paper

Paper

Nanoscale cutting mechanism by molecular dynamics simulation

Z. G. Zhang, F. Z. Fang, C. K. Sun

Proceedings Volume 6724, 67240F (2007) https://doi.org/10.1117/12.782508

KEYWORDS: Chemical species, Silicon, Surface finishing, Diamond, Copper, Micro cutting, Device simulation, Manufacturing, Analytical research, Optics manufacturing

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Proceedings Article | 24 August 2006 Paper

Paper

Optimal design of integrated acousto-optic tunable filters based on investigation of SAW in acoustic waveguide

Jisheng Yang, Hehua Xu, Chuanjing Wen, Changku Sun

Proceedings Volume 6314, 63140U (2006) https://doi.org/10.1117/12.677631

KEYWORDS: Acoustics, Waveguides, Wave propagation, Acousto-optics, Tunable filters, Crystals, Electromechanical design, Transducers, Lithium niobate, Differential equations

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Proceedings Article | 25 October 2005 Paper

Paper

Sidelobe suppression of integrated acousto-optic tunable filters with a new weighted coupling algorithm

Jisheng Yang, Hehua Xu, Wencheng Li, Changku Sun

Proceedings Volume 6013, 60130P (2005) https://doi.org/10.1117/12.630538

KEYWORDS: Acousto-optics, Tunable filters, Wave propagation, Chemical elements, Numerical analysis, Waveguides, Acoustics, Lithium, Sun, Applied physics

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Proceedings Article | 10 February 2005 Paper

Paper

Research on the color 3D profilometry and parameter calibration technology

Li Tao, Changku Sun, Li He, Shenghua Ye

Proceedings Volume 5638, (2005) https://doi.org/10.1117/12.576168

KEYWORDS: Calibration, 3D metrology, Cameras, Mathematical modeling, Sensors, Mathematics, Image processing, 3D modeling, CCD cameras, Imaging systems

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Proceedings Article | 20 January 2005 Paper

Paper

Research on tangent plane algorithm for spatial position of vehicle wheel

Wei Wei, Changku Sun, Yunxia Qu, Xiaodong Zhang, Shenghua Ye

Proceedings Volume 5633, (2005) https://doi.org/10.1117/12.573254

KEYWORDS: Computing systems, Sensors, Imaging systems, CCD cameras, 3D image processing, Calibration, Sensor calibration, 3D metrology, Inspection, Image sensors

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Proceedings Article | 20 September 2002 Paper

Paper

Coordinate unification technique of multisensors in laser vision alignment system for vehicle wheel

Changku Sun, Zhixiong Wang, Xiaodong Zhang

Proceedings Volume 4919, (2002) https://doi.org/10.1117/12.471870

KEYWORDS: Computing systems, Sensors, Calibration, CCD cameras, Imaging systems, Laser systems engineering, Sensor calibration, Laser applications, Mathematical modeling, Inspection

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SPIE Journal Paper | 1 November 2001

Online machine vision method for measuring the diameter and straightness of seamless steel pipes

Changku Sun, Qiang You, Yu Qiu, Shenghua Ye

OE, Vol. 40, Issue 11, (November 2001) https://doi.org/10.1117/12.10.1117/1.1412424

KEYWORDS: Sensors, Machine vision, CCD cameras, Calibration, Imaging systems, CCD image sensors, Sensor calibration, Cameras, Distortion, Image sensors

Proceedings Article | 10 October 2000 Paper

Paper

Optoelectronic inspection method for IC shell blanks

Changku Sun, Hongyan Shi, Xiaojie Xue, Shenghua Ye

Proceedings Volume 4222, (2000) https://doi.org/10.1117/12.403843

KEYWORDS: Inspection, Image processing, Signal processing, Optoelectronics, Signal detection, Standards development, Visualization, Image sensors, Binary data, CCD cameras

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Proceedings Article | 13 May 2000 Paper

Paper

Research on image preprocessing techniques for real-time radiography inspection

Dahai Ren, Zheng You, Sun Changku, Ye Shenghua

Proceedings Volume 3993, (2000) https://doi.org/10.1117/12.385493

KEYWORDS: Image enhancement, Radiography, Image processing, Inspection, Fuzzy logic, Image intensifiers, Gallium, Signal attenuation, Image quality, Mathematical modeling

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Proceedings Article | 10 August 1998 Paper

Paper

Visual measurement on BGA chip leaders

Shenghua Ye, Yu Qiu, Changku Sun

Proceedings Volume 3558, (1998) https://doi.org/10.1117/12.318365

KEYWORDS: Mirrors, Sensors, Visualization, Imaging systems, Image segmentation, 3D metrology, Light, Image resolution, Interferometry, Structured light

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Showing 5 of 37 publications

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