Prof. Weiji He Profile

Prof. Weiji He

at Nanjing Univ. of Science and Technology

SPIE Involvement:

Author

Publications (42)

Proceedings Article | 6 November 2023 Paper

Approaching the quantum resolution limit for two partially coherent optical point sources

Lin Zhou, Ben Wang, Yan Li, Weiji He, Lijian Zhang

Proceedings Volume 12921, 129214G (2023) https://doi.org/10.1117/12.2691802

KEYWORDS: Quantum limits, Quantum imaging, Partial coherence, Quantum coherence, Point spread functions, Super resolution, Quantum sources, Quantum Fisher information, Image resolution, Signal to noise ratio

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Proceedings Article | 8 July 2022 Paper

Design of an experimental device for laser-induced breakdown spectroscopy system based on passively Q-switched laser

Jianling Guo, Aijun Zeng, Weiji He

Proceedings Volume 12280, 122800C (2022) https://doi.org/10.1117/12.2619953

KEYWORDS: Laser induced breakdown spectroscopy, Q switched lasers

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Proceedings Article | 27 March 2022 Paper

Low noise infrared imaging based on frequency upconversion

Yuqi Jiang, Tianyi Mao, Guohua Gu, Weiji He, Qian Chen

Proceedings Volume 12169, 1216911 (2022) https://doi.org/10.1117/12.2620960

KEYWORDS: Upconversion, Cameras, Temperature metrology, Infrared imaging, Time metrology, Short wave infrared radiation, Nonlinear crystals, Image quality, Infrared radiation, Signal to noise ratio

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Proceedings Article | 27 March 2022 Paper

Modulated pulse characteristics based on nonlinear frequency upconversion

Yan Li, Yongcheng Han, Guohua Gu, Weiji He, Qian Chen

Proceedings Volume 12169, 121690U (2022) https://doi.org/10.1117/12.2620750

KEYWORDS: Upconversion, Infrared radiation, Infrared imaging, Modulation, Infrared detectors, Gaussian pulse, Signal detection, Quantum efficiency, Sum-frequency generation, Signal processing

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Proceedings Article | 27 March 2022 Paper

Frequency upconversion photon counting imaging based on Hadamard coding

Ying Zhang, YuQi Jiang, Tianyi Mao, Wenwen Zhang, GuoHua Gu, WeiJi He, Qian Chen

Proceedings Volume 12169, 1216912 (2022) https://doi.org/10.1117/12.2620965

KEYWORDS: Upconversion, Photon counting, Fiber lasers, Crystals, Point spread functions, Mirrors, Digital micromirror devices, Polarization, Nonlinear crystals, Micromirrors

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Proceedings Article | 24 November 2021 Paper

FOV expanded upconversion imaging based on tight focusing system

YuQi Jiang, DaQuan Yu, GuoHua Gu, WeiJi He, Qian Chen

Proceedings Volume 12061, 120610M (2021) https://doi.org/10.1117/12.2603891

KEYWORDS: Imaging systems, Nonlinear crystals, Upconversion, Cameras, Image processing, Temperature metrology, Pulsed laser operation, Fiber lasers, Collimators, Collimation

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Proceedings Article | 12 March 2021 Paper

Large array EMCCD driving circuit design

Haiqi Zhu, Qian Chen, Weiji He, Guohua Gu, Wenwen Zhang, Caiyong Wu

Proceedings Volume 11763, 117631K (2021) https://doi.org/10.1117/12.2586286

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Proceedings Article | 12 March 2021 Paper

Design of a high-performance EMCCD imaging system

Caiyong Wu, Guohua Gu, Qian Chen, Weiji He, Wenwen Zhang, Haiqi Zhu

Proceedings Volume 11763, 117631J (2021) https://doi.org/10.1117/12.2586285

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Proceedings Article | 12 March 2021 Paper

Research on the influence of local image denoising algorithm on photon-noise transfer method

Hang Xu, Ying-Chun Xu, Li-Jiao He, Wei-Ji He, Chong Liu, Chu Chu

Proceedings Volume 11763, 1176346 (2021) https://doi.org/10.1117/12.2586897

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Proceedings Article | 12 March 2020 Paper

Research on calibration technology of comprehensive performance parameters of mid-far infrared space load

Weigang Rong, Wenwen Zhang, Weiji He, Qian Chen, Guohua Gu, Chao Qiu, Wanglin Yang

Proceedings Volume 11439, 1143915 (2020) https://doi.org/10.1117/12.2547976

KEYWORDS: Infrared radiation, Infrared imaging, Calibration, Sensors, Imaging systems, Mid-IR, Black bodies, Minimum resolvable temperature difference, Target detection, Distortion

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Proceedings Article | 12 March 2020 Paper

A method of MRTD parameter measurement based on CNN neural network

Weigang Rong, Wenwen Zhang, Weiji He, Qian Chen, Guohua Gu, Tiekun Zhao, Zhi Qiu

Proceedings Volume 11439, 1143910 (2020) https://doi.org/10.1117/12.2544098

KEYWORDS: Neural networks, Minimum resolvable temperature difference, Infrared imaging, Image processing, Imaging systems, Data modeling, Image classification, Black bodies, Eye, Image enhancement

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Proceedings Article | 12 March 2020 Paper

Research and implementation of color night vision imaging system based on FPGA and CMOS

Yang Yang, Wenwen Zhang, Weiji He, Qian Chen, Guohua Gu

Proceedings Volume 11434, 114340U (2020) https://doi.org/10.1117/12.2548100

KEYWORDS: Imaging systems, Image processing, Cameras, Field programmable gate arrays, Image enhancement, Night vision, Sensors, Image sensors, Color imaging, CMOS sensors

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Proceedings Article | 12 March 2020 Paper

Based on EMCCD imaging system

Yifan Xia, Xiaoyong Wang, Guohua Gu, Weiji He, Qian Chen

Proceedings Volume 11439, 114391M (2020) https://doi.org/10.1117/12.2550266

KEYWORDS: Electron multiplying charge coupled devices, Imaging systems, Cameras, Charge-coupled devices, CCD cameras, Quantum efficiency, Computing systems, Control systems

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Proceedings Article | 18 December 2019 Paper

Model for efficient upconversion detection at mid-infrared

Yuqi Jiang, Xinmin Zhou, Weiji He, Guohua Gu

Proceedings Volume 11338, 113380U (2019) https://doi.org/10.1117/12.2542630

KEYWORDS: Upconversion, Nonlinear crystals, Mid-IR, Sensors, Temperature metrology, Imaging spectroscopy, Atmospheric modeling, Signal detection, Crystals, Image processing

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Proceedings Article | 14 August 2019 Paper

A depth image reconstruction algorithm based on background noise censoring

Pengwei Huang, Weiji He, Guohua Gu, Qian Chen

Proceedings Volume 11179, 111790Q (2019) https://doi.org/10.1117/12.2539662

KEYWORDS: Reconstruction algorithms, Detection and tracking algorithms, Interference (communication), Photon counting, LIDAR, Signal to noise ratio, Image restoration, Target detection, Clouds, Photodetectors

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SPIE Journal Paper | 23 May 2019

Reconstruction algorithm of low-light integral imaging by electron-multiplying charge-coupled device

Yuanjin Chen, Yan Zou, Pengwei Huang, Jiajia Qi, Weiji He, Qian Chen

OE, Vol. 58, Issue 05, 053103, (May 2019) https://doi.org/10.1117/12.10.1117/1.OE.58.5.053103

KEYWORDS: Reconstruction algorithms, Integral imaging, Detection and tracking algorithms, Electron multiplying charge coupled devices, Charge-coupled devices, Image quality, Image processing, 3D acquisition, 3D image processing, 3D displays

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Proceedings Article | 18 September 2018 Paper

A photon-efficient method based on curve fitting for photon counting 3D imaging lidar

Ling Ye, Guohua Gu, Weiji He, Wenye Yin, Jie Lin, Jian Fang

Proceedings Volume 10767, 107670X (2018) https://doi.org/10.1117/12.2317805

KEYWORDS: LIDAR, Photon counting, Avalanche photodiodes, 3D image processing, Photodetectors, Quantitative analysis, Single photon detectors, Atmospheric optics

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Proceedings Article | 17 September 2018 Paper

Optimization of coded aperture in compressive x-ray tomography

Tianyi Mao, Angela Cuadros, Xu Ma, Weiji He, Qian Chen, Gonzalo Arce

Proceedings Volume 10752, 107521S (2018) https://doi.org/10.1117/12.2319429

KEYWORDS: Coded apertures, X-rays, Tomography, Sensors, X-ray sources, Reconstruction algorithms, Optimization (mathematics), Computer simulations, Computed tomography, Signal processing

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Proceedings Article | 9 August 2018 Paper

A 3D denoising algorithm based on photon-counting imaging at low light level

Changqiang Wu, Weiji He, Guohua Gu, Qian Chen

Proceedings Volume 10806, 108063N (2018) https://doi.org/10.1117/12.2503117

KEYWORDS: 3D image processing, 3D acquisition, Photon counting, Target detection, Detection and tracking algorithms, Signal detection, Denoising, Time correlated photon counting, Sensors, Imaging systems

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Proceedings Article | 9 August 2018 Paper

Photon counting 3D imaging lidar adaptive target contours acquiring method

Jimin Tang, Weiji He, Guohua Gu, Qian Chen

Proceedings Volume 10806, 108063M (2018) https://doi.org/10.1117/12.2503069

KEYWORDS: LIDAR, Photon counting, 3D acquisition, Image processing, Image resolution, 3D image processing, Stereoscopy, Reconstruction algorithms, Imaging systems

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Proceedings Article | 9 August 2018 Paper

Three dimensional photon counting integral imaging based on Bayesian adaptive reconstruction

Jiajia Qi, Xiaoyong Jiang, Yuanjin Chen, Weiji He, Guohua Gu, Qian Chen

Proceedings Volume 10806, 108063P (2018) https://doi.org/10.1117/12.2503130

KEYWORDS: Photon counting, Integral imaging, 3D image processing, Reconstruction algorithms, Cameras, Expectation maximization algorithms, Imaging systems, 3D acquisition, 3D image reconstruction, Image analysis

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Proceedings Article | 6 September 2017 Paper

Adaptive compressed photon counting 3D imaging based on wavelet trees and Hadamard multiplexing

Huidong Dai, Guohua Gu, Weiji He, Ling Ye, Tianyi Mao, Qian Chen

Proceedings Volume 10410, 104101A (2017) https://doi.org/10.1117/12.2272923

KEYWORDS: Photon counting, 3D acquisition, Wavelets, Multiplexing, 3D metrology, Image acquisition

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Proceedings Article | 1 August 2017 Paper

Range walk error correction and modeling on Pseudo-random photon counting system

Shanshan Shen, Qian Chen, Weiji He

Proceedings Volume 10339, 1033922 (2017) https://doi.org/10.1117/12.2270162

KEYWORDS: Photon counting, Laser development, Vertical cavity surface emitting lasers, Receivers, Monte Carlo methods, Avalanche photodiodes, Time correlated photon counting, Pulsed laser operation, Calibration

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Proceedings Article | 10 February 2017 Paper

Adaptive depth imaging method based on photon counting LIDAR

Weiji He, Zhenchao Feng, Jie Lin, Shanshan Shen, Qian Chen, Guohua Gu, Beibei Zhou

Proceedings Volume 10250, 102501V (2017) https://doi.org/10.1117/12.2266826

KEYWORDS: LIDAR, Imaging systems, Photon counting, Radar imaging, Single photon detectors, Laser systems engineering

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Proceedings Article | 10 February 2017 Paper

Colored adaptive compressed imaging using color space conversion

Yiyun Yan, Huidong Dai, Jin Gao, Chaowei Li, Xingjiong Liu, Weiji He, Qian Chen, Guohua Gu

Proceedings Volume 10250, 102502R (2017) https://doi.org/10.1117/12.2266839

KEYWORDS: Color imaging, Computational imaging, Image restoration, Wavelets

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Proceedings Article | 24 October 2016 Paper

Incoherent coincidence imaging of space objects

Tianyi Mao, Qian Chen, Weiji He, Guohua Gu

Proceedings Volume 9682, 96820Y (2016) https://doi.org/10.1117/12.2242623

KEYWORDS: Reconstruction algorithms, Fourier transforms, Sensors, Synthetic apertures, Detection and tracking algorithms, Spatial resolution, Telescopes, Binary data, Interferometry, Light

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Proceedings Article | 15 October 2015 Paper

Reconstruction of color images via Haar wavelet based on digital micromirror device

Xingjiong Liu, Weiji He, Guohua Gu

Proceedings Volume 9674, 967437 (2015) https://doi.org/10.1117/12.2204899

KEYWORDS: Wavelets, Digital micromirror devices, Image processing, Image fusion, Digital image processing, Signal detection, Sensors, Digital Light Processing, Target detection, Signal processing

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Proceedings Article | 15 October 2015 Paper

The algorithm and implementation of EMCCD automatic gain adjustment based on fixed gray level

Le Luo, Qian Chen, Wei-Ji He, Zhen-Xi Lu

Proceedings Volume 9674, 96742G (2015) https://doi.org/10.1117/12.2201041

KEYWORDS: Electron multiplying charge coupled devices, Imaging systems, Resistance, Image quality, Electrons, Digital electronics, Charge-coupled devices, Electrodes, Tin, Image resolution

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Proceedings Article | 8 October 2015 Paper

Optimal performance receiving ranging system model and realization using TCSPC technique

Shanshan Shen, Qian Chen, Weiji He, Pin Zhou, Guohua Gu

Proceedings Volume 9677, 96770Z (2015) https://doi.org/10.1117/12.2199318

KEYWORDS: Signal to noise ratio, Monte Carlo methods, Probability theory, Ranging, Signal detection, Systems modeling, Performance modeling, Optical simulations, Interference (communication), Photon counting

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Proceedings Article | 1 September 2015 Paper

Random projection-based dimensionality reduction method for hyperspectral target detection

Weiyi Feng, Qian Chen, Weiji He, Gonzalo Arce, Guohua Gu, Jiayan Zhuang

Proceedings Volume 9611, 961117 (2015) https://doi.org/10.1117/12.2187709

KEYWORDS: Target detection, Hyperspectral imaging, Hyperspectral target detection, Principal component analysis, Distortion, Sensors, Image analysis, Yield improvement, Remote sensing, Signal detection

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Proceedings Article | 13 November 2014 Paper

Theory research on performance of high-speed random bitstream ranging system based on single-photon counting

Shanshan Shen, Qian Chen, Weiji He, Huidong Dai

Proceedings Volume 9279, 92790Y (2014) https://doi.org/10.1117/12.2068732

KEYWORDS: Signal to noise ratio, Monte Carlo methods, Probability theory, Photon counting, Ranging, Interference (communication), Signal detection, Time correlated photon counting, Photon transport, Statistical modeling

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Proceedings Article | 19 December 2013 Paper

An optimized hybrid encode based compression algorithm for hyperspectral image

Cheng Wang, Zhuang Miao, Weiyi Feng, Weiji He, Qian Chen, Guohua Gu

Proceedings Volume 9045, 90451V (2013) https://doi.org/10.1117/12.2038158

KEYWORDS: Image compression, Hyperspectral imaging, Image quality, Computer programming, Reconstruction algorithms, Signal to noise ratio, Wavelets, Spectroscopy, Image processing, Wavelet transforms

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Proceedings Article | 19 December 2013 Paper

A novel micro-pulse laser active imaging method based on photon counting scheme

Chenghao Liu, Wenye Yin, Zhuang Miao, Wei-ji He, Qian Chen, Guo-Hua Gu

Proceedings Volume 9045, 904507 (2013) https://doi.org/10.1117/12.2038144

KEYWORDS: Sensors, Target detection, Imaging systems, Pulsed laser operation, Reflectivity, Laser applications, Optical simulations, Laser energy, Photon counting, Image sensors

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Proceedings Article | 19 September 2013 Paper

Range walk error correction using prior modeling in photon counting 3D imaging lidar

Weiji He, Yunfei Chen, Zhuang Miao, Qian Chen, Guohua Gu, Huidong Dai

Proceedings Volume 8905, 89051D (2013) https://doi.org/10.1117/12.2034059

KEYWORDS: Pulsed laser operation, Photon counting, LIDAR, Sensors, 3D modeling, Error analysis, Calibration, Signal detection, Photodetectors, Laser energy

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Proceedings Article | 19 September 2013 Paper

Three-dimensional active imaging using compressed gating

Huidong Dai, Weiji He, Zhuang Miao, Yunfei Chen, Guohua Gu

Proceedings Volume 8905, 890515 (2013) https://doi.org/10.1117/12.2033661

KEYWORDS: 3D image processing, 3D acquisition, Sensors, Stereoscopy, Pulsed laser operation, Image sensors, Signal detection, 3D metrology, Imaging systems, Target detection

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Proceedings Article | 19 September 2013 Paper

Single photon ranging system using two wavelengths laser and analysis of precision

Yunfei Chen, Weiji He, Zhuang Miao, Guohua Gu, Qian Chen

Proceedings Volume 8905, 89051N (2013) https://doi.org/10.1117/12.2034467

KEYWORDS: Probability theory, Photon counting, Pulsed laser operation, Target detection, Single photon, Ranging, LIDAR, Signal detection, Sensors, Light sources

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Proceedings Article | 30 August 2013 Paper

Sparse representation based multi-threshold segmentation for hyperspectral target detection

Wei-yi Feng, Qian Chen, Zhuang Miao, Wei-ji He, Guo-hua Gu, Jia-yan Zhuang

Proceedings Volume 8910, 89100M (2013) https://doi.org/10.1117/12.2032686

KEYWORDS: Detection and tracking algorithms, Hyperspectral imaging, Target detection, Image segmentation, Hyperspectral target detection, Ions, Interference (communication), Principal component analysis, Wavelets, RGB color model

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Proceedings Article | 21 August 2013 Paper

The algorithm of regionally compensating nonlinear response of photo detector to improve the quality of image reconstruction for compressed sensing

Jiayan Zhuang, Qian Chen, Zhuang Miao, Weiji He, Weiyi Feng

Proceedings Volume 8908, 89080N (2013) https://doi.org/10.1117/12.2032694

KEYWORDS: Detection and tracking algorithms, Image quality, Reconstruction algorithms, Sensors, Compressed sensing, Nonlinear response, Computer simulations, Image restoration, Image processing, Imaging systems

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SPIE Journal Paper | 18 April 2013 Open Access

Novel algorithm to compensate nonlinear response of photo detector to improve quality of image reconstruction for compressed sensing

Jiayan ZZhuang, Qian Chen, Weiji He, Weiyi Feng

OE, Vol. 52, Issue 04, 043204, (April 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.4.043204

KEYWORDS: Reconstruction algorithms, Sensors, Nonlinear response, Detection and tracking algorithms, Compressed sensing, Image quality, Imaging systems, Image restoration, Error analysis, Algorithms

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Proceedings Article | 15 October 2012 Paper

Photon-counting image assessment based on standard mutual information using improved 2D entropy

Ruiqing He, Qian Chen, Yaojin Chen, Wei Cheng, Weiji He

Proceedings Volume 8417, 841717 (2012) https://doi.org/10.1117/12.975826

KEYWORDS: Image quality, Photon counting, Image quality standards, Image information entropy, Standards development, Image processing, Photonics systems, Optical testing, Signal detection, Image fusion

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Proceedings Article | 9 May 2012 Paper

Shot-noise-limited imaging based on N-photon detection

Wei-ji He, Yaojin Chen, Qian Chen, Guo-Hua Gu, Wei Cheng

Proceedings Volume 8366, 83660T (2012) https://doi.org/10.1117/12.920543

KEYWORDS: Photons, Sensors, Signal to noise ratio, Signal detection, Single photon, Light emitting diodes, LabVIEW, Luminescence, Analog electronics, Interference (communication)

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Proceedings Article | 3 March 2008 Paper

A laser ranging method based on APD arrays

Songfeng Kou, Qian Chen, Weiji He

Proceedings Volume 6621, 66210N (2008) https://doi.org/10.1117/12.790667

KEYWORDS: Avalanche photodetectors, Ranging, Single photon, Pulsed laser operation, Quenching (fluorescence), Sensors, Photon counting, Photodetectors, Sun, Laser applications

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Showing 5 of 42 publications

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