Prof. Liqiang Wang Profile

Prof. Liqiang Wang

at Zhejiang Univ

SPIE Involvement:

Author

Publications (22)

Proceedings Article | 30 December 2022 Paper

Multispectral endoscopic imaging studies on the tissue components of gastrointestinal mucosa

Zhisheng Wu, Xingjun Gao, Bo Yuan, Qing Yang, Liqiang Wang

Proceedings Volume 12316, 1231605 (2022) https://doi.org/10.1117/12.2641999

KEYWORDS: Multispectral imaging, Image segmentation, Image enhancement, Endoscopy, Tissue optics, Light scattering

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Proceedings Article | 18 December 2019 Paper

A blue-white light imaging method for enhancing the capillaries in mucous tissues in vivo

Jiamin Xia, Huan Wang, Bo Yuan, Liqiang Wang

Proceedings Volume 11338, 113382X (2019) https://doi.org/10.1117/12.2547825

KEYWORDS: Blood vessels, Capillaries, Endoscopes, Tissues, Image processing, Endoscopy, Light sources, In vivo imaging, Tumors, Bladder

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Proceedings Article | 18 December 2019 Paper

Algorithm of phase compensation for the endoscope with three-dimensional measurement

Wang Qiang, Gao-jie Zhu, Li-qiang Wang, Yuan Bo

Proceedings Volume 11338, 113382W (2019) https://doi.org/10.1117/12.2547814

KEYWORDS: Structured light, Phase compensation, Endoscopes, 3D metrology, Optical fibers, 3D modeling, Endoscopy, Calibration, Phase shifts, Cameras

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Proceedings Article | 16 August 2017 Open Access

Student-centered and ability training-oriented curriculum reform in teaching Microcontroller Principles and Interface Techniques

Xiaoping Wang, Peijun Cai, Yuling Liu, Liqiang Wang, Yiyong Liang

Proceedings Volume 10452, 104520W (2017) https://doi.org/10.1117/12.2267205

KEYWORDS: Interfaces, Optics, Engineering education, Optical engineering, Microcontroller applications

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Courses are an important way of cultivating talents in college education. Advanced training schemes and the course system are implemented through course teaching. Advanced teaching notions and methods also rely on course teaching. Therefore, the quality of course teaching is the fundamental guarantor for grooming talent. The teachers of the course “Microcontroller Principles and Interface Techniques” in the Optical Science and Engineering College of Zhejiang University insist on course teaching becoming student centered and ability-training–oriented. They pay attention to students’all-round development in terms of learning ability, practical ability, innovation ability, and exploring spirit. They actively carried out course reforms in four aspects, namely teaching, learning, evaluation, and experimentation. This paper mainly introduced these reforms. First, the teaching method was reformed by introducing case analysis and the notion of a flipped classroom to shift the course focus from the teacher to the students. Second, the learning method was reformed through the use of techniques such as peer learning and project design to promote students’ sense of enquiry and learning initiative. Third, the evaluation method was reformed through the use of process assessment and diversity evaluation to encourage students to develop logical thinking and a down-to-earth manner. Fourth, the experimentation method was reformed by introducing hierarchical content, process management, and diversification of examination to change students’learning attitude from “dependence, passivity, and imitation” to “independence, active involvement, and creation.”In general, the teaching method reform promoted reforms in learning, evaluation, and experimentation methods and further improved the style of study. These reforms improved teachers’ teaching abilities and enabled course teaching to transform from being teacher centered to student centered. Years of exploration and practice results have shown that such reforms not only effectively inspire students to learn, explore, and practice actively, but also cultivate their creative spirit and courage to face challenges, providing a good platform for theirself-learning and personal growth. The course reforms discussed here have been highly recommended for their reference value.

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Proceedings Article | 5 January 2017 Paper

An image enhancement technique using nonlinear transfer function and unsharp masking in multispectral endoscope

Kejian Zhang, Huan Wang, Bo Yuan, Liqiang Wang

Proceedings Volume 10245, 1024504 (2017) https://doi.org/10.1117/12.2264216

KEYWORDS: Endoscopes, Image contrast enhancement, Image enhancement, Image filtering, Nonlinear filtering, Biomedical optics, Optical imaging, Medical imaging, Optical microscopy

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Proceedings Article | 5 January 2017 Paper

A three-dimensional measurement method for medical electric endoscope

Tingting Zhou, Pei Tao, Bo Yuan, Liqiang Wang

Proceedings Volume 10245, 102450A (2017) https://doi.org/10.1117/12.2266835

KEYWORDS: Endoscopes, Optical testing, Phase shifts, Medical imaging, Biomedical optics, Optical imaging

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Proceedings Article | 7 August 2015 Paper

Absolute angular encoder based on optical diffraction

Jian Wu, Tingting Zhou, Bo Yuan, Liqiang Wang

Proceedings Volume 9623, 962304 (2015) https://doi.org/10.1117/12.2191494

KEYWORDS: Computer programming, Diffraction, Sensors, Prototyping, Lithography, Diffraction gratings, Spatial resolution, Detector arrays, Phase shifts, Laser systems engineering

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Proceedings Article | 5 August 2015 Paper

A stereo matching method for actual binocular system

Tingting Zhou, Bo Yuan, Liqiang Wang

Proceedings Volume 9622, 96220X (2015) https://doi.org/10.1117/12.2190592

KEYWORDS: Cameras, Image sensors, Imaging devices, RGB color model, Reflectivity, Sensors, Light sources, Image compression, Image processing, Light sources and illumination

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Proceedings Article | 5 August 2015 Paper

A depth camera for natural human-computer interaction based on near-infrared imaging and structured light

Yue Liu, Liqiang Wang, Bo Yuan, Hao Liu

Proceedings Volume 9622, 96220H (2015) https://doi.org/10.1117/12.2190642

KEYWORDS: Cameras, Infrared radiation, Human-computer interaction, Infrared imaging, Semiconductor lasers, Near infrared, Image classification, Infrared cameras, Gesture recognition, Structured light

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Proceedings Article | 30 November 2012 Paper

A portable high-definition electronic endoscope based on embedded system

Guang Xu, Liqiang Wang, Jin Xu

Proceedings Volume 8558, 85580I (2012) https://doi.org/10.1117/12.999806

KEYWORDS: Endoscopes, Cameras, CMOS sensors, Image processing, Embedded systems, Video, LCDs, Operating systems, Human-machine interfaces, Image resolution

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Proceedings Article | 30 November 2012 Paper

Real-time matching method used for distance measurement in binocular stereo vision

Hong Jiang, Bo Yuan, Liqiang Wang, Zibo Meng

Proceedings Volume 8558, 855812 (2012) https://doi.org/10.1117/12.999762

KEYWORDS: Distance measurement, Cameras, 3D acquisition, 3D image processing, Stereo vision systems, 3D displays, Endoscopes, Content addressable memory, Detection and tracking algorithms, Ranging

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Proceedings Article | 30 November 2012 Paper

Designing and implementing a miniature CMOS imaging system with USB interface

Chenyun Yao, Liqiang Wang, Bo Yuan, Jin Xu

Proceedings Volume 8558, 85580N (2012) https://doi.org/10.1117/12.2000036

KEYWORDS: Imaging systems, CMOS sensors, Image sensors, Image processing, Microcontrollers, Image acquisition, Image resolution, Endoscopes, Interference (communication), Data transmission

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Proceedings Article | 20 November 2012 Paper

A data processing method to improve the accuracy of depth measurement by binocular stereo vision system

Jia Tang, Ming Zhang, Liqiang Wang

Proceedings Volume 8563, 856306 (2012) https://doi.org/10.1117/12.999811

KEYWORDS: Cameras, Calibration, Distance measurement, 3D vision, Imaging systems, Data processing, Sensors, CMOS sensors, Stereo vision systems, Machine vision

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Proceedings Article | 5 December 2011 Paper

The comparison of different medical electronic endoscope systems

Wei Ye, Liqiang Wang, Huilong Duan

Proceedings Volume 8197, 81970K (2011) https://doi.org/10.1117/12.905023

KEYWORDS: Digital signal processing, Image processing, Endoscopes, Image sensors, Signal processing, Video, Image transmission, Image acquisition, Cameras, Imaging systems

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Proceedings Article | 5 December 2011 Paper

Optimization design of suspension biochip detection system

Guoxiong Xu, Yingmin Bu, Liqiang Wang

Proceedings Volume 8197, 81970L (2011) https://doi.org/10.1117/12.907136

KEYWORDS: Optical filters, Image resolution, Absorption, Optical resolution, Absorption filters, Luminescence, Xenon, Dichroic materials, Lamps, Image acquisition

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Proceedings Article | 29 November 2011 Paper

A color image segmentation algorithm by integrating watershed with automatic seeded region growing and merging

Guoxiong Xu, Yingmin Bu, Liqiang Wang

Proceedings Volume 8200, 820018 (2011) https://doi.org/10.1117/12.904877

KEYWORDS: Image segmentation, Image processing algorithms and systems, RGB color model, Color image segmentation, Visual process modeling, Eye models, Image processing, Detection and tracking algorithms, Color image processing, Visualization

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Proceedings Article | 29 November 2011 Paper

Reconstruction and processing of medical electronic endoscopic image based on white LED illumination

Jing Chen, Liqiang Wang, Huilong Duan

Proceedings Volume 8200, 820008 (2011) https://doi.org/10.1117/12.904860

KEYWORDS: Image processing, Endoscopes, Light emitting diodes, Image enhancement, LED lighting, Cameras, CMOS sensors, Medical imaging, Endoscopy, Image resolution

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Proceedings Article | 16 November 2010 Paper

Three-chip LED illumination system for laparoscopy and minimal access surgery applications

Bin Ye, Liqiang Wang, Huilong Duan

Proceedings Volume 7852, 78520H (2010) https://doi.org/10.1117/12.869479

KEYWORDS: Light emitting diodes, LED lighting, Light sources, Surgery, Laparoscopy, Endoscopes, Fiber optics, Optical filters, Luminous efficacy, Waveguides

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Proceedings Article | 9 November 2010 Paper

Portable electronic endoscopic imaging system

Lihui Du, Liqiang Wang, Bin Ye, Huilong Duan

Proceedings Volume 7850, 785003 (2010) https://doi.org/10.1117/12.869795

KEYWORDS: LCDs, Imaging systems, Cameras, Image resolution, Endoscopy, Image processing, Electronic imaging, Image transmission, Sensors, Data transmission

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Proceedings Article | 9 November 2010 Paper

Optical design used in Z-stack imaging based on liquid lens

Tianling Yang, Liqiang Wang, Huilong Duan

Proceedings Volume 7849, 78492R (2010) https://doi.org/10.1117/12.870637

KEYWORDS: Modulation transfer functions, Liquids, Liquid lenses, Microscopes, Objectives, Imaging systems, Code v, Glasses, Diffraction, Data modeling

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Proceedings Article | 9 November 2010 Paper

Confocal fluorescence microendoscopy using a digital micro-mirror device

Zhifeng Feng, Liqiang Wang, Huilong Duan

Proceedings Volume 7845, 78451M (2010) https://doi.org/10.1117/12.869800

KEYWORDS: Confocal microscopy, Digital micromirror devices, Luminescence, Micromirrors, Optical fibers, Objectives, Charge-coupled devices, Image resolution, Imaging systems, In vivo imaging

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Proceedings Article | 9 November 2010 Paper

Fast confocal endomicroscopy based on multi-fiber parallel scanning

Yan Shi, Liqiang Wang

Proceedings Volume 7845, 78451C (2010) https://doi.org/10.1117/12.870627

KEYWORDS: Confocal microscopy, Luminescence, Endomicroscopy, Scanners, Microelectromechanical systems, Charge-coupled devices, Tissues, Objectives, Image resolution, Fiber lasers

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Showing 5 of 22 publications

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