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Dr. Ji Liu
Associate Professor at North Univ. of China
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Publications (4)
Proceedings Article | 13 December 2021 Paper
Synchronous microdeformation and first derivative dynamic measurement based on laser shearing speckle interferometry
Xiaohui Huang, Ji Liu, Lixia Yu
Proceedings Volume 12071, 1207114 (2021) https://doi.org/10.1117/12.2604382
KEYWORDS: Fourier transforms, Composites, Holograms, Speckle interferometry, Beam splitters, Image processing, Phase shifts, Speckle, Laser interferometry, Holography
Proceedings Article | 13 November 2019 Paper
Effect of average speckle size on speckle interference fringe pattern
Lixia Yu, Xiaohui Huang, Ji Liu
Proceedings Volume 11343, 113432A (2019) https://doi.org/10.1117/12.2556071
KEYWORDS: Speckle, Imaging systems, Fringe analysis, Image filtering, Optical filters, Speckle imaging, Image quality, Digital image processing, Speckle pattern
Proceedings Article | 7 March 2019 Paper
Precise measurement of large roll angle using digital speckle pattern interferometry
Jing Yang, Sijin Wu, Weixian Li, Fan Wu, Ji Liu, Lianxiang Yang
Proceedings Volume 11053, 1105343 (2019) https://doi.org/10.1117/12.2512422
KEYWORDS: Interferometry, Interferometers, Speckle pattern, Sensors, Optical interferometry, Mathematical modeling
Proceedings Article | 27 September 2016 Paper
Research on the photoelectric measuring method of warhead fragment velocity
Ji Liu, Lixia Yu, Bin Zhang, Xiaoyan Liu
Proceedings Volume 9684, 968403 (2016) https://doi.org/10.1117/12.2242701
KEYWORDS: Laser processing, Signal processing, Velocity measurements, Data processing, Detection and tracking algorithms, Telecommunications, Wavelets, Laser systems engineering, Electronic filtering, Filtering (signal processing)
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