Prof. Lei Liu Profile

Prof. Lei Liu

Professor at Nanjing Univ of Science and Technology

SPIE Involvement:

Author

Publications (34)

Proceedings Article | 30 November 2023 Poster + Paper

Integrated ultrahigh vacuum facility for photocathode preparation and in-situ characterization

Yijun Zhang, Yunsheng Qian, Junju Zhang, Rongguo Fu, Lei Liu, Yafeng Qiu, Benkang Chang

Proceedings Volume 12796, 127960D (2023) https://doi.org/10.1117/12.2691136

KEYWORDS: Indium gallium arsenide, X-ray photoelectron spectroscopy, Semiconductors, Contamination

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Proceedings Article | 16 December 2022 Paper

Detection and azimuth information display of infrared moving targets

Yefei Li, Xiangyu Kong, Lei Liu, Xiaofeng Bai

Proceedings Volume 12324, 123240P (2022) https://doi.org/10.1117/12.2646998

KEYWORDS: Target detection, Detection and tracking algorithms, Infrared detectors, Infrared radiation, Infrared imaging, Global Positioning System, Video, Statistical modeling, Field programmable gate arrays, 3D acquisition

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SPIE Journal Paper | 19 February 2021

Study on the optical characteristics of gradient Al component AlGaN nanowires for ultraviolet photocathode

Zhisheng Lv, Lei Liu, Xingyue Zhangyang, Feifei Lu, Jian Tian

JPE, Vol. 11, Issue 01, 014501, (February 2021) https://doi.org/10.1117/12.10.1117/1.JPE.11.014501

KEYWORDS: Aluminum, Absorption, Nanowires, Nanostructures, Quantum efficiency, Chromium, Gallium, Ultraviolet radiation, Gallium nitride, Photons

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SPIE Journal Paper | 18 January 2021

Optimal design of compositionally graded Al_xGa_1−xN nanostructure for optical absorption of UV photocathode

Zhisheng Lv, Lei Liu, Xingyue Zhangyang, Feifei Lu, Jian Tian

JNP, Vol. 15, Issue 01, 016003, (January 2021) https://doi.org/10.1117/12.10.1117/1.JNP.15.016003

KEYWORDS: Absorption, Aluminum, Nanostructures, Nanowires, Gallium, Ultraviolet radiation, UV optics, Photons, Refractive index, Quantum efficiency

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Proceedings Article | 21 August 2020 Poster + Presentation + Paper

Study on electronic and optical properties of GaN nanostructure arrays

Xiaodong Guo, Lei Liu, Xingyue Zhangyang

Proceedings Volume 11465, 1146508 (2020) https://doi.org/10.1117/12.2572354

KEYWORDS: Nanorods, Gallium nitride, Nanostructures, Optical properties

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Proceedings Article | 6 December 2019 Paper

Electronic structure and optical properties of native point defects on Si-doped GaN (0001) surface

Ying Ju, Lei Liu, Feifei Lu

Proceedings Volume 11371, 113710G (2019) https://doi.org/10.1117/12.2536285

KEYWORDS: Gallium, Gallium nitride, Chemical species, Silicon, Optical properties, Electrons, Metals, Doping, Refractive index, Semiconductors

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Proceedings Article | 12 November 2019 Paper

Research on submarine terrain reconstruction technology based on laser polarization characteristics

Lei Liu, Yefei Li, Jiaxiao Song, Xu Chen

Proceedings Volume 11197, 111970B (2019) https://doi.org/10.1117/12.2540291

KEYWORDS: Laser applications, Polarization, Target detection, Submerged target detection, Laser development, Data acquisition, Databases, Target recognition, Laser processing, Environmental monitoring

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Proceedings Article | 3 September 2019 Paper

Gas molecules adsorption mechanism on GaAs (100) nanowire surface

Lei Liu, Feifei Lu, Sihao Xia, Yu Diao

Proceedings Volume 11089, 110891C (2019) https://doi.org/10.1117/12.2522590

KEYWORDS: Gallium arsenide, Nanowires, Adsorption, Molecules, Chemical species, Gases, Refractive index, Gallium, Absorption, Photons

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Proceedings Article | 9 October 2018 Presentation + Paper

Novel infrared object detection and tracking algorithm based on visual attention

Lei Liu, Xu Chen, Qi Xia

Proceedings Volume 10794, 107940G (2018) https://doi.org/10.1117/12.2500322

KEYWORDS: Detection and tracking algorithms, Target detection, Visualization, Infrared radiation, Visual process modeling, Infrared imaging, Visible radiation, Video, Optical tracking, Infrared detectors

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SPIE Journal Paper | 16 July 2018

Foreign substances detection algorithm for liquid in transparent glass bottles based on the combination of guided filter and visual background extractor

Ruxue Zhao, Lei Liu, Xu Chen, Jiaxiao Song, Shan Jiang

JEI, Vol. 27, Issue 04, 043015, (July 2018) https://doi.org/10.1117/12.10.1117/1.JEI.27.4.043015

KEYWORDS: Liquids, Detection and tracking algorithms, Image enhancement, Image filtering, Image processing, Glasses, Hough transforms, Optical filters, Visualization, Image fusion

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Proceedings Article | 11 September 2013 Paper

Infrared small target detection technology based on OpenCV

Lei Liu, Zhijian Huang

Proceedings Volume 8907, 89070C (2013) https://doi.org/10.1117/12.2030709

KEYWORDS: Video, Target detection, Infrared radiation, Infrared detectors, Detection and tracking algorithms, Video processing, Infrared imaging, Image segmentation, Image fusion, Control systems

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Proceedings Article | 23 May 2013 Paper

Infrared small target detection technology based on OpenCV

Lei Liu, Zhijian Huang

Proceedings Volume 8745, 87451Q (2013) https://doi.org/10.1117/12.2011048

KEYWORDS: Video, Target detection, Infrared radiation, Infrared detectors, Detection and tracking algorithms, Infrared imaging, Video processing, Image segmentation, Image fusion, Control systems

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Proceedings Article | 24 October 2012 Paper

Research on infrared small-target tracking technology under complex background

Lei Liu, Xin Wang, Jilu Chen, Tao Pan

Proceedings Volume 8541, 85411L (2012) https://doi.org/10.1117/12.979474

KEYWORDS: Detection and tracking algorithms, Video, Infrared radiation, Filtering (signal processing), Infrared search and track, Infrared imaging, Video processing, Infrared technology, Software development, Microsoft Foundation Class Library

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Proceedings Article | 15 February 2012 Paper

The infrared network video monitoring system based on Linux OS

Lei Liu, Chen Ning, Xiaojun Zhou, Tao Pan

Proceedings Volume 8298, 82980T (2012) https://doi.org/10.1117/12.903029

KEYWORDS: Video, Video surveillance, Infrared radiation, Video processing, Video coding, LCDs, Infrared cameras, Cameras, Infrared imaging, CCD cameras

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Proceedings Article | 28 September 2011 Paper

The design for embedded network infrared video monitoring system based on Linux OS

Lei Liu, Chen Ning, Xiaojun Zhou, Tao Pan

Proceedings Volume 8185, 81850Y (2011) https://doi.org/10.1117/12.903028

KEYWORDS: Video, Video surveillance, Infrared radiation, Video processing, Video coding, Infrared imaging, Infrared cameras, LCDs, Cameras, CCD cameras

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Proceedings Article | 16 September 2011 Paper

New approach to noise factor measurement on microchannel plate of optoelectronic detector

Lei Liu, Yunsheng Qian, Yafeng Qiu

Proceedings Volume 8155, 81550K (2011) https://doi.org/10.1117/12.887709

KEYWORDS: Microchannel plates, Signal to noise ratio, Image intensifiers, Imaging systems, Optoelectronics, Image quality, Interference (communication), Optoelectronic devices, Telecommunications, Electron beams

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Proceedings Article | 21 May 2011 Paper

The research on infrared small-target detection technology under complex background

Lei Liu, Xin Wang, Jilu Chen, Zhijian Huang

Proceedings Volume 8012, 80123L (2011) https://doi.org/10.1117/12.882405

KEYWORDS: Target detection, Video, Infrared radiation, Infrared detectors, Image segmentation, Infrared imaging, Detection and tracking algorithms, Infrared technology, Software development, Analytical research

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Proceedings Article | 24 September 2009 Paper

Spectral matching factors between low-light-level and infrared fusion optoelectronic detector and objects

Lei Liu, Yinghao Fan, Benkang Chang

Proceedings Volume 7481, 74810X (2009) https://doi.org/10.1117/12.828940

KEYWORDS: Infrared detectors, Sensors, Infrared radiation, Infrared sensors, Vegetation, Reflectivity, Optoelectronics, Night vision systems, Mercury cadmium telluride, Night vision

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Proceedings Article | 31 May 2007 Paper

Measurement of modulation transfer function of infrared optoelectronic detector

Lei Liu, Bing Chen

Proceedings Volume 6585, 658525 (2007) https://doi.org/10.1117/12.723336

KEYWORDS: Modulation transfer functions, Infrared radiation, Infrared detectors, Thermography, Sensors, Optoelectronics, Infrared sensors, Computing systems, Infrared imaging, Imaging systems

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Proceedings Article | 22 April 2006 Paper

Performance simulation of photoelectric imaging system based on visual scene

Lei Liu, Yunsheng Qian, Yuan Li

Proceedings Volume 6189, 61891I (2006) https://doi.org/10.1117/12.661216

KEYWORDS: Visualization, Scene simulation, Imaging systems, Night vision systems, Device simulation, Night vision, Sensors, Virtual colonoscopy, Atmospheric modeling, Human-machine interfaces

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Proceedings Article | 31 January 2005 Paper

The variation of spectral response of transmission-type GaAs photocathode in the seal process

Lei Liu, Benkang Chang

Proceedings Volume 5624, (2005) https://doi.org/10.1117/12.568674

KEYWORDS: Gallium arsenide, Vegetation, Night vision, Light sources, Signal processing, Diffusion, Electrons, Interfaces, Monochromators, Stars

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Proceedings Article | 20 January 2005 Paper

The study on the spectral response of transmission-type GaAs photocathode in the seal process

Lei Liu, Benkang Chang

Proceedings Volume 5633, (2005) https://doi.org/10.1117/12.570902

KEYWORDS: Gallium arsenide, Night vision, Light sources, Vegetation, Measurement devices, Signal processing, Diffusion, Electrons, Interfaces, Monochromators

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Proceedings Article | 12 May 2004 Paper

The design of CY-1R night vision helmet

Lei Liu, Benkang Chang

Proceedings Volume 5280, (2004) https://doi.org/10.1117/12.519735

KEYWORDS: Night vision, Goggles, Fiber optic illuminators, Objectives, Light sources, Lens design, Night vision goggles, Power supplies, Image intensifiers, Image quality

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SPIE Journal Paper | 1 April 2004

Spectral response characterization of super S₂₅ and new S₂₅ photocathodes

Lei Liu, BenKang Chang

OE, Vol. 43, Issue 04, (April 2004) https://doi.org/10.1117/12.10.1117/1.1666867

KEYWORDS: Absorption, Analytical research, Diffusion, Crystals, Solids, Optical engineering, Dielectrophoresis, Device simulation, Instrumentation engineering, Imaging devices

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SPIE Journal Paper | 1 February 2004

New apparent distance-detecting equation for low-light-level imaging system

Lei Liu, BenKang Chang

OE, Vol. 43, Issue 02, (February 2004) https://doi.org/10.1117/12.10.1117/1.1637610

KEYWORDS: Imaging systems, Low light level imaging, Reflectivity, Night vision systems, Atmospheric sensing, Objectives, Signal attenuation, Signal to noise ratio, Target recognition, Target detection

Proceedings Article | 8 December 2003 Paper

Automatic recording system of dynamic spectral response and its applications

Benkang Chang, Xiaoqing Du, Lei Liu, Zhiyuan Zong, Rongguo Fu, Yunsheng Qian

Proceedings Volume 5209, (2003) https://doi.org/10.1117/12.505113

KEYWORDS: Sodium, Quantum efficiency, Diffusion, Gallium arsenide, Dynamical systems, Reflectivity, Sensors, Spectroscopy, Signal detection, Computing systems

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Proceedings Article | 6 November 2003 Paper

Design of CY-1R binocular goggle with two intensifier tubes

Lei Liu, Benkang Chang

Proceedings Volume 5174, (2003) https://doi.org/10.1117/12.503908

KEYWORDS: Goggles, Fiber optic illuminators, Night vision, Objectives, Night vision goggles, Light sources, Lens design, Power supplies, Image intensifiers, Image quality

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SPIE Journal Paper | 1 July 2003

Visual range of low-light-level night vision goggles for driving

Lei Liu, Benkang Chang

OE, Vol. 42, Issue 07, (July 2003) https://doi.org/10.1117/12.10.1117/1.1578491

KEYWORDS: Visualization, Night vision goggles, Objectives, Imaging systems, Night vision systems, Atmospheric sensing, Night vision, Target detection, Reflectivity, Goggles

Proceedings Article | 5 February 2003 Paper

Frequency spectrum measurement of noise image intensifiers

Yunsheng Qian, Benkang Chang, Moying Tong, Lei Liu

Proceedings Volume 4796, (2003) https://doi.org/10.1117/12.450856

KEYWORDS: Signal to noise ratio, Image intensifiers, Filtering (signal processing), Digital filtering, Optical filters, Signal processing, Interference (communication), Image filtering, Luminescence, Computing systems

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Proceedings Article | 5 February 2003 Paper

Online control for Cs-O layer of NEA photocathode

Benkang Chang, Rongguo Fu, Zhiyuan Zong, Yunsheng Qian, Qihai Zhan, Ping Gao, Xiaoqing Du, Lei Liu

Proceedings Volume 4796, (2003) https://doi.org/10.1117/12.450857

KEYWORDS: Gallium arsenide, Oxygen, Infrared radiation, Reflection, Infrared imaging, Cesium, Low light level imaging, Image sensors, Sensors, Infrared detectors

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Proceedings Article | 5 December 2002 Paper

Study of heat-flow equation for uncooled infrared focal plane arrays

Xiaoqing Du, Lei Liu, Benkang Chang

Proceedings Volume 4795, (2002) https://doi.org/10.1117/12.451891

KEYWORDS: Infrared radiation, Thermography, Modulation, Infrared imaging, Staring arrays, Thermal modeling, Sensors, Infrared detectors, 3D modeling, Performance modeling

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Proceedings Article | 25 October 2002 Paper

Calculation for effects of temperature fluctuation noise on NETD in uncooled infrared thermal imaging system

Lei Liu, Benkang Chang

Proceedings Volume 4772, (2002) https://doi.org/10.1117/12.451754

KEYWORDS: Thermography, Sensors, Imaging systems, Infrared imaging, Infrared radiation, Signal to noise ratio, Interference (communication), Black bodies, Staring arrays, Imaging devices

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Proceedings Article | 20 September 2002 Paper

Visual range of LLL night vision goggle for drive

Lei Liu, Benkang Chang, Wei Li, Yunsheng Qian, Rongguo Fu, Zhiyuan Zhong

Proceedings Volume 4919, (2002) https://doi.org/10.1117/12.465652

KEYWORDS: Visualization, Night vision goggles, Imaging systems, Night vision systems, Atmospheric sensing, Reflectivity, Objectives, Vegetation, Light sources, Einsteinium

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Proceedings Article | 6 October 1998 Paper

Lung cancer cell recognition based on multiple color space

Jianfeng Lu, Shijin Li, Jingyu Yang, Leijian Liu, Anguang He, Keli Liu

Proceedings Volume 3522, (1998) https://doi.org/10.1117/12.325784

KEYWORDS: Cancer, Image segmentation, Lung cancer, Colorimetry, RGB color model, Feature extraction, Light sources and illumination, Detection and tracking algorithms, Image processing, Microscopes

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Showing 5 of 34 publications

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