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  1. No Access

    Chapter and Conference Paper

    Edge Detection of SAR Images Based on Shearlet

    Synthetic aperture radar (SAR) has the characteristics of all-weather imaging and is widely used in various fields. However, owe to coherent imaging mechanism, speckle appears in SAR images, which seriously af...

    Zengguo Sun, Guodong Zhao, Weirong Chen… in Proceedings of the 7th China High Resoluti… (2022)

  2. No Access

    Chapter and Conference Paper

    Research on Brightness Compensation Algorithm for GF-3 SAR Images

    GF-3, the first C-Band full-polarimetric synthetic aperture radar (SAR) satellite with a space resolution up to 1 m, has multiple strip and scan imaging modes. In this paper, a brightness compensation model is...

    Zengguo Sun, **aopeng Yan, Qianfu Chen… in Proceedings of the 7th China High Resoluti… (2022)

  3. No Access

    Chapter and Conference Paper

    Maximum a Posteriori Despeckling Algorithm of Synthetic Aperture Radar Images with Exponential Prior Distribution

    In order to solve the problem that the traditional Lee filter and Kuan filter cannot effectively preserve the edge and the point target of synthetic aperture radar images, the maximum a posteriori despeckling ...

    Zengguo Sun, Xuejun Peng in Advances in Natural Computation, Fuzzy Sys… (2021)

  4. Article

    Open Access

    A novel grouped sparse representation for face recognition

    Grouped sparse representation classification methods (GSRCMs) have been attracted much attention by scholars, especially in face recognition. However, pervious literatures of GSRCMs only fuse the scores from d...

    **gcheng Ke, Yali Peng, Shigang Liu, Zengguo Sun… in Multimedia Tools and Applications (2019)

    Download PDF (2427 KB) View Article

  5. No Access

    Chapter and Conference Paper

    Analysis of the Algebraic Tails of GF-3 SAR Images

    GF-3 is the synthetic aperture radar (SAR) satellite with the largest number of imaging modes in the world, which operates in 12 imaging modes. Owing to the 1-m resolution imaging mode, GF-3 satellite has beco...

    Zengguo Sun, Yun**g Song in Proceedings of the 5th China High Resoluti… (2019)

  6. No Access

    Article

    A survey of virtual sample generation technology for face recognition

    Despite considerable advances made in face recognition in recent years, the recognition performance still suffers from insufficient training samples. Hence, various algorithms have been proposed for addressing...

    Lingjun Li, Yali Peng, Guoyong Qiu, Zengguo Sun… in Artificial Intelligence Review (2018)

  7. No Access

    Chapter and Conference Paper

    Log-Cumulant Parameter Estimator of Log-Normal Distribution

    Based on the second-kind statistics, the log-cumulant estimator is proposed for parameter estimation of the log-normal distribution. The estimates of the shape parameter and scale parameter are independent for...

    Zengguo Sun, Jixiang Du in Intelligent Computing Theory (2014)