Prof. Lei Liu Profile

Prof. Lei Liu

at Harbin Engineering University

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Author

Publications (7)

Proceedings Article | 12 June 2020 Paper

Speckle noise reduction in digital holography using random overlapping masks and 3D block matching filtering

Zhi Zhong, Fujiao Zhou, Lei Liu, Mingguang Shan

Proc. SPIE. 11519, Twelfth International Conference on Digital Image Processing (ICDIP 2020)

KEYWORDS: Signal to noise ratio, Digital holography, Speckle, Denoising

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Proceedings Article | 14 February 2020 Paper

Real-time phase reconstruction of dual-wavelength off-axis digital holography based on Java and GPU

Yunze Cao, Wanchen Li, Mingguang Shan, Zhi Zhong, Lei Liu, Bin Liu

Proc. SPIE. 11249, Quantitative Phase Imaging VI

KEYWORDS: MATLAB, Holograms, Digital holography, Image processing, Fourier transforms, Image analysis, Java, 3D image processing, Communication engineering, Bandpass filters

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Proceedings Article | 14 February 2020 Paper

Compact dual-wavelength off-axis digital holography for quantitative phase imaging

Mingguang Shan, Jixiang Lyu, Lei Liu, Zhi Zhong, Bin Liu

Proc. SPIE. 11249, Quantitative Phase Imaging VI

KEYWORDS: Holograms, Digital holography, Fourier transforms, Multiplexing, Phase imaging

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SPIE Journal Paper | 15 April 2019

Autofocusing in dual-wavelength digital holography using correlation coefficient

Zhi Zhong, Xiaoxin Xie, Lei Liu, Cheng Wang, Mingguang Shan, Bin Liu

OE Vol. 58 Issue 04

KEYWORDS: Holograms, Digital holography, Beam splitters, Diffraction, 3D image reconstruction, Multiplexing, Reconstruction algorithms, Optical engineering, Communication engineering, Spatial frequencies

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Proceedings Article | 7 March 2019 Paper

Optical fiber Fabry-Perot acoustic sensor based on large PDMS diaphragm

Han Zhou, Bingkun Wu, Mingguang Shan, Lei Liu, Haichao Yu, Zhi Zhong, Bin Liu

Proc. SPIE. 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation

KEYWORDS: Optical fibers, Fabry–Perot interferometers, Sensors, Quartz, Glasses, Ceramics, Silicon, Reflectivity, Interference (communication), Acoustics

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Proceedings Article | 7 March 2019 Paper

Dual-wavelength off-axis quasi-common path digital holography using polarization multiplexing and flipping

Lei Liu, Zhi Zhong, Mingguang Shan, Bin Liu, Guangyu Luan, Ming Diao, Yabin Zhang

Proc. SPIE. 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation

KEYWORDS: Diffraction, Mirrors, Beam splitters, Digital holography, Detection and tracking algorithms, Spatial frequencies, Fourier transforms, Multiplexing, CCD cameras, Communication engineering

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SPIE Journal Paper | 21 August 2018

Security-enhanced optical interference-based multiple-image encryption using a modified multiplane phase retrieval algorithm

Mingguang Shan, Lei Liu, Bin Liu, Zhi Zhong

OE Vol. 57 Issue 08

KEYWORDS: Image encryption, Phase retrieval, Computer security, Optical engineering, Image processing, Multiplexing, Communication engineering, Sensors, Spatial light modulators, Image retrieval

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Showing 5 of 7 publications

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