通信学报 ›› 2017, Vol. 38 ›› Issue (Z1): 186-192.doi: 10.11959/j.issn.1000-436x.2017252

• 学术论文 • 上一篇    下一篇

卫星平台震颤影像的去模糊方法

宋晓林,方忠浩,潘俊   

  1. 武汉大学测绘遥感信息工程国家重点实验室,武汉 湖北 430079
  • 出版日期:2017-10-01 发布日期:2018-06-07
  • 作者简介:宋晓林(1992-),女,山东威海人,武汉大学硕士生,主要研究方向为高分辨率光学遥感卫星图像处理。|方忠浩(1992-),男,湖北恩施人,武汉大学硕士生,主要研究方向为高分辨率光学遥感卫星图像处理。|潘俊(1979-),男,湖北丹江口人,博士,武汉大学副教授,主要研究方向为光学卫星影像数据处理、高分辨率遥感影像质量改善、遥感影像匀光镶嵌等。
  • 基金资助:
    国家自然科学基金资助项目(91438112)

Image deblurring method for satellite platform caused by jitter

Xiao-lin SONG,Zhong-hao FANG,Jun PAN   

  1. State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China
  • Online:2017-10-01 Published:2018-06-07
  • Supported by:
    The National Natural Science Foundation of China(91438112)

摘要:

TDI CCD相机凭借其多级积分的成像特点,已成为目前高分辨率光学遥感器成像系统的主流传感器,但在其成像过程中,若存在平台震颤,会造成图像的模糊,影响成像质量。首先,从TDI CCD相机的成像原理入手,分析了平台震颤对成像质量的影响,并根据震颤检测得到的震颤像移轨迹,提出一种震颤影像去模糊方法,以消除震颤引起的图像退化,最后,利用资源三号多光谱影像进行了实验。实验结果表明,经该方法处理后的震颤影像,图像的各项定量评价指标显著提升,从而验证了方法的有效性。

关键词: TDICCD相机, 平台震颤, 像移, 去模糊

Abstract:

TDI CCD camera with its multi-level integral imaging features has become the mainstream sensor of current high-resolution optical remote sensor imaging system,but if there is platform tremor in its imaging process,it will produce images blur,affecting image quality.The influence of platform tremor on imaging quality based on the imaging principle of TDI CCD camera was analyzed.According to the jitter image trajectory obtained by jitter detection,a method was proposed to eliminate image degradation caused by jitter.ZY-3 multi-spectral images were experimented.The experimental results show that the quantitative evaluation index of the image after the jitter image is improved,and the validity of the method is verified.

Key words: TDI CCD camera, platform jitter, image shift, deblurring

中图分类号: 

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