| 基于高斯金字塔的遥感云图多尺度特征提取 |
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| 引用本文： | 周全,张荣,尹东. 基于高斯金字塔的遥感云图多尺度特征提取[J]. 遥感技术与应用, 2010, 25(5): 604-608. DOI: 10.11873/j.issn.1004-0323.2010.5.604 |
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| 作者姓名： | 周全 张荣 尹东 |
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| 作者单位： | （中国科学技术大学电子工程与信息科学系信息处理中心,安徽 合肥 230027 ） |
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| 摘 要： | 提出了一种针对可见光遥感图像云图的多尺度特征提取方法。该方法通过高斯金字塔将遥感云图分解到多尺度空间,以此为基础将图像的灰度特征进行多尺度延拓,从而得到图像的多尺度特征矢量。实验结果表明在相同的特征算法和分类器条件下,多尺度延拓能够提升分类精度,更加有效地实现云图和地物的分类。
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| 关 键 词： | 可见光遥感图像 多尺度特征 特征提取 无监督分类 |
| 收稿时间： | 2010-03-19 |
The Extracting of Multiscale Features of Remote Sensing Cloud Images Based on Gaussian Pyramid |
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| ZHOU Quan,ZHANG Rong,YIN Dong. The Extracting of Multiscale Features of Remote Sensing Cloud Images Based on Gaussian Pyramid[J]. Remote Sensing Technology and Application, 2010, 25(5): 604-608. DOI: 10.11873/j.issn.1004-0323.2010.5.604 |
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| Authors: | ZHOU Quan ZHANG Rong YIN Dong |
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| Affiliation: | (Information Processing Center,University of Science and Technology of China,Hefei 230027,China) |
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| Abstract: | A method used for extracting multiscale features is applied to the optical remote sensing cloud im-ages.They are decomposed to multiscale space and the features of images are expanded during the process,from which a multiscale feature vector can be acquired.Provided identical feature algorithm and classifier,it is illustrated by experiment that multiscale expanded features can help raise the precision of classification,from which better performance of classifying clouds and earth targets can be achieved. |
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| Keywords: | Optical remote sensing images Multiscale features Feature extracting Unsupervised classifica-tion |
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