应用尺度不变特征变换的多源遥感影像特征点匹配

刘志文; 刘定生; 刘鹏

doi:10.3788/OPE.20132108.2146

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应用尺度不变特征变换的多源遥感影像特征点匹配

信息科学 | 更新时间：2020-08-12

- 应用尺度不变特征变换的多源遥感影像特征点匹配
- SIFT feature matching algorithm of multi-source remote image
- 光学精密工程 2013年21卷第8期页码：2146-2153
- 作者机构：
  
  1. 中国科学院大学北京,中国,100049
  2. 中国科学院电子学研究所北京,中国,100190
  3. 中国科学院对地观测与数字地球科学中心北京,100094
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20132108.2146
  中图分类号： TP752;TP391.4
- 收稿日期：2012-12-18，
  
  修回日期：2013-03-19，
  
  网络出版日期：2013-08-20，
  
  纸质出版日期：2013-08-15
- 稿件说明：
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刘志文刘定生刘鹏. 应用尺度不变特征变换的多源遥感影像特征点匹配[J]. 光学精密工程, 2013,21(8): 2146-2153

LIU Zhi-wen LIU Ding-sheng LIU Peng . SIFT feature matching algorithm of multi-source remote image[J]. Editorial Office of Optics and Precision Engineering, 2013,21(8): 2146-2153
刘志文刘定生刘鹏. 应用尺度不变特征变换的多源遥感影像特征点匹配[J]. 光学精密工程, 2013,21(8): 2146-2153 DOI： 10.3788/OPE.20132108.2146.

LIU Zhi-wen LIU Ding-sheng LIU Peng . SIFT feature matching algorithm of multi-source remote image[J]. Editorial Office of Optics and Precision Engineering, 2013,21(8): 2146-2153 DOI： 10.3788/OPE.20132108.2146.

摘要

针对多源遥感影像之间灰度值非线性变化导致特征点匹配率大幅度下降的问题，提出了一种利用光谱信息的多源遥感影像特征点匹配算法。首先，以光谱信息对遥感影像波段进行线性拟合，使待匹配影像与参考影像之间的灰度值由非线性转变为线性或者近似线性变化。接着，在拟合的遥感影像上采用改进的尺度不变特征变换（SIFT）算法进行匹配。最后，采用随机抽样一致性算法剔除误匹配点对。与常用特征点检测算法(SIFT

梯度位置朝向直方图（GLOH）

RS-SIFT)的对比实验结果表明，本文所用的ETM+影像全色与多光谱影像的特征点匹配率提高了4%左右，CBERS-02B和HJ-1B卫星多光谱影像的正确特征点匹配个数增加了8对。因此，在多源遥感影像特征点匹配中，本文所提算法优于其它检测算法，可以极大地改善匹配效果。

Abstract

Many traditional feature point algorithms cannot handle more complex nonlinear brightness changes because the gray between multi-source remote sensing images is nonlinear changes. To cover the shortage

a Scale Invariant Feature Transform(SIFT) feature matching algorithm of multi-source remote sensing images was proposed. First

the approximate linear gray value between multi-source remote sensing images was achieved through linear fitting of the bands of the images. Then

an improved SIFT algorithm was adopted to match the fitted remote sensing images. Finally

the random sample Consensus algorithm was used to remove the false matching point pairs. In comparison with other feature matching algorithms (SIFT

Gradient Location Orientation Hologram(GLOH)

RS-SIFT). The experimental results show that the feature matching rate increases by about 4% between ETM+ panchromatic and multispectral images and the number of correct matches of key points increases by about 8 point pairs between CBERS-02B and HJ-1B images. It concludes that the proposed method significantly outperforms many state-of-the-art methods under multi-source remote sensing images.

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references

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