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首页> 外文期刊>Aerospace science and technology >Fast restoration of star image under dynamic conditions via l(p) regularized intensity prior
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Fast restoration of star image under dynamic conditions via l(p) regularized intensity prior

机译：动态条件下通过l（p）正则化强度快速恢复恒星图像

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摘要

This paper is an in-depth look at the problem of removing the blur from a complex motion-blurred star image. Accordingly, a simple yet effective l(p) (0 < p <= 1)-regularized deblurring method based on stars image intensity is proposed. The model builds on the principle that the intensity of clear star image is in accordance with Laplacian distribution or generalized p Gaussian distribution. Further, two algorithms are introduced to solve the ensuing non-smooth (p = 1) or non-convex (p < 1) constrained optimization problem. Simulations and actual star image restoration experiment are implemented to demonstrate that the centroids extraction accuracy of the proposed method is higher than 0.1 pixel, the running time is 3 to 5 times better than Richardson-Lucy filter or other methods based on image gradient constraint, and the peak signal to noise ratio (PSNR) of recovered star images excel results of several other image deconvolution methods. (C) 2016 Elsevier Masson SAS. All rights reserved.
机译：本文深入研究了从复杂的运动模糊星像中消除模糊的问题。因此，提出了一种基于星像强度的简单而有效的l（p）（0 <= 1）正则化去模糊方法。该模型基于以下原理：清晰的恒星像的强度符合拉普拉斯分布或广义p高斯分布。此外，引入了两种算法来解决随后出现的非平滑（p = 1）或非凸（p <1）约束优化问题。通过仿真和实际的恒星图像复原实验，证明了该方法的质心提取精度高于0.1像素，运行时间比基于图像梯度约束的Richardson-Lucy滤镜或其他方法要好3至5倍，并且恢复的恒星图像的峰值信噪比（PSNR）优于其他几种图像反卷积方法的结果。 （C）2016 Elsevier Masson SAS。版权所有。

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  • 来源
    《Aerospace science and technology》 |2017年第2期|29-34|共6页
  • 作者

    Zhang Cundu; Zhao Jianhui; Yu Tao; Yuan Honglin; Li Fan;

  • 作者单位

    Beihang Univ, Sch Instrumentat Sci & Optoelect Engn, Beijing, Peoples R China;

    Beihang Univ, Sch Instrumentat Sci & Optoelect Engn, Beijing, Peoples R China;

    Beihang Univ, Sch Instrumentat Sci & Optoelect Engn, Beijing, Peoples R China;

    Beihang Univ, Sch Instrumentat Sci & Optoelect Engn, Beijing, Peoples R China;

    Beihang Univ, Sch Instrumentat Sci & Optoelect Engn, Beijing, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Star sensor; Motion compensation; Deconvolution; Image restoration;

    机译：星形传感器;运动补偿;去卷积;图像恢复;

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