Dr. Kefeng Ji Profile

Dr. Kefeng Ji

at National Univ of Defense Technology

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Author

Publications (11)

Proceedings Article | 7 March 2024 Paper

Supervised spiking neural network for SAR image recognition: analysis of encoding methods and performance under strong noise influence

Wang Junyu, Sun Hao, Tang Tao, Lei Lin, Ji Kefeng

Proceedings Volume 13088, 1308806 (2024) https://doi.org/10.1117/12.2692471

KEYWORDS: Synthetic aperture radar, Target recognition, Artificial neural networks, Neurons, Neural networks, Education and training, Speckle, Image restoration, Image analysis, Shadows

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Proceedings Article | 8 March 2018 Paper

A modified sparse reconstruction method for three-dimensional synthetic aperture radar image

Ziqiang Zhang, Kefeng Ji, Haibo Song, Huanxin Zou

Proceedings Volume 10611, 106110R (2018) https://doi.org/10.1117/12.2289440

KEYWORDS: Reconstruction algorithms, 3D image processing, Synthetic aperture radar, 3D image reconstruction, Data modeling, 3D acquisition, 3D modeling, Stereoscopy, Image restoration, Detection and tracking algorithms

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Proceedings Article | 2 March 2016 Paper

Supervised nonparametric sparse discriminant analysis for hyperspectral imagery classification

Longfei Wu, Hao Sun, Kefeng Ji

Proceedings Volume 9901, 990119 (2016) https://doi.org/10.1117/12.2234944

KEYWORDS: Sensors, Tolerancing, Hyperspectral imaging, Image analysis, Image classification, Feature extraction, Visualization, Machine vision, Computer vision technology, Remote sensing

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Proceedings Article | 14 December 2015 Paper

Multi-features association-based local HOG description for image matching

Bingbing Wu, Shilin Zhou, Lin Lei, Kefeng Ji

Proceedings Volume 9813, 981311 (2015) https://doi.org/10.1117/12.2209096

KEYWORDS: Convolution, Image processing, Machine vision, Computer vision technology, Sensors, Detection and tracking algorithms, Fourier transforms, Electronics engineering, Defense technologies, Detector development

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SPIE Journal Paper | 20 April 2015

Simulation of spatially correlated PolSAR images using inverse transform method

Xianxiang Qin, Huanxin Zou, Shilin Zhou, Kefeng Ji

JARS, Vol. 9, Issue 01, 095082, (April 2015) https://doi.org/10.1117/12.10.1117/1.JRS.9.095082

KEYWORDS: Computer simulations, Synthetic aperture radar, Image segmentation, Speckle, Polarimetry, Data modeling, Device simulation, Scattering, Matrices, Contrast transfer function

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Proceedings Article | 24 November 2014 Paper

A robust point set registration algorithm based on information geometry

Xiaoqiang Hua, Ping Wang, Kefeng Ji, Yinghui Gao, Ruigang Fu

Proceedings Volume 9301, 930110 (2014) https://doi.org/10.1117/12.2070836

KEYWORDS: Expectation maximization algorithms, Statistical modeling, Optimization (mathematics), Image registration, Algorithm development, Visual process modeling, Detection and tracking algorithms, Machine vision, Computer vision technology, Motion models

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Proceedings Article | 26 October 2013 Paper

A refined ship segmentation method in SAR imagery

Kefeng Ji, Xiangwei Xing, Zhi Zhao, Huanxin Zou, Jixiang Sun

Proceedings Volume 8918, 89180R (2013) https://doi.org/10.1117/12.2031494

KEYWORDS: Image segmentation, Synthetic aperture radar, Radon transform, Radon, Feature extraction, Image resolution, Speckle, Backscatter, Image classification, Doppler effect

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Proceedings Article | 26 October 2013 Paper

SAR vehicle classification based on sparse representation with aspect angle constraint

Xiangwei Xing, Kefeng Ji, Huanxin Zou, Jixiang Sun

Proceedings Volume 8918, 89180K (2013) https://doi.org/10.1117/12.2031412

KEYWORDS: Synthetic aperture radar, Associative arrays, Image classification, Automatic target recognition, Target recognition, Statistical analysis, Detection and tracking algorithms, Algorithm development, Sun, Electronics engineering

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Proceedings Article | 26 October 2013 Paper

Adaptive CFAR detection of ship targets in high resolution SAR imagery

Zhi Zhao, Kefeng Ji, Xiangwei Xing, Huanxin Zou

Proceedings Volume 8917, 89170L (2013) https://doi.org/10.1117/12.2030299

KEYWORDS: Sensors, Synthetic aperture radar, Target detection, Detection and tracking algorithms, Image resolution, Statistical analysis, Algorithm development, Detector development, Sensor performance, Algorithms

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Proceedings Article | 30 October 2009 Paper

Simulation of SAR images of ground vehicles

Kefeng Ji, Aibing Zhang, Huanxin Zou, Weishun Sun

Proceedings Volume 7495, 749535 (2009) https://doi.org/10.1117/12.833897

KEYWORDS: Synthetic aperture radar, Device simulation, Scattering, Electromagnetic scattering, Target recognition, Radar, Image processing, Image resolution, 3D modeling, Diffraction

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Proceedings Article | 24 October 2007 Paper

Segmentation of multi-look fully polarimetric SAR images based on Wishart distribution and MRF

Yonghui Wu, Kefeng Ji, Wenxian Yu, Yi Su

Proceedings Volume 6748, 674813 (2007) https://doi.org/10.1117/12.736395

KEYWORDS: Image segmentation, Polarimetry, Synthetic aperture radar, Magnetorheological finishing, Image processing, Scattering, L band, Statistical analysis, Image filtering, Speckle

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Showing 5 of 11 publications

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