应用科学学报 ›› 2015, Vol. 33 ›› Issue (3): 309-316.doi: 10.3969/j.issn.0255-8297.2015.03.009

• 信号与信息处理 • 上一篇    下一篇

资源三号卫星影像超分辨率重建

贾永红1,2, 吕臻1, 周明婷1   

  1. 1. 武汉大学遥感信息工程学院,武汉430079
    2. 武汉大学测绘遥感信息工程国家重点实验室,武汉430079
  • 收稿日期:2014-12-25 修回日期:2015-02-06 出版日期:2015-05-30 发布日期:2015-02-06
  • 作者简介:贾永红,教授、博导,研究方向:遥感影像分析与应用、航天摄影测量、空间信息管理与更新等,E-mail: yhjia2000@sina.com;周明婷,硕士,研究方向:遥感影像分析与应用等,E-mail: 1949101245@qq.com
  • 基金资助:

    国家科技支撑计划课题基金(No.2011BAB01B05)资助

Super Resolution Reconstruction of ZY-3 Satellite Images

JIA Yong-hong1,2, LÜ Zhen1, ZHOU Ming-ting1   

  1. 1. School of Remote Sensing and Information Engineering, Wuhan University,
    Wuhan 430079, China
    2. State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China
  • Received:2014-12-25 Revised:2015-02-06 Online:2015-05-30 Published:2015-02-06

摘要: 研究了迭代反投影重建的方法与基于稀疏表示和字典学习的重建方法,将两种重建
算法首次用于资源三号三线阵影像数据的重建试验,并从亮度均值、峰值信噪比、信息熵和清
晰度等四方面对实验结果进行客观分析. 重建影像结果表明:基于字典学习和稀疏表示的重建
方法获得的资源三号重建影像效果优于迭代反投影方法.

关键词: 超分辨率, 特征匹配, 迭代反投影, 字典学习, 稀疏表示

Abstract:  Two refactoring approaches, one based on iterative back projection (IBP) and
the other based on sparse representation and dictionary learning, are discussed. Three
linear array images of the ZY-3 satellite are used to reconstruct super-resolution images.
The reconstruction results are evaluated according to four objective criteria, i.e., mean
brightness, PSNR, information entropy, and sharpness of images. The results obtained with
the two approaches show that the sparse representation and dictionary learning method is
better than the iterative back projection method.

Key words: super-resolution, feature matching, iterative back projection (IBP), dictionary learning, sparse representation

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