| 基于 PDE 与小波的图像放大研究 |
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| 引用本文： | 戴存兵,高永光,刘建平,何鹏程,吴绍民.基于 PDE 与小波的图像放大研究[J].信息工程大学学报,2012,13(1):82-85. |
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| 作者姓名： | 戴存兵 高永光 刘建平 何鹏程 吴绍民 |
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| 作者单位： | [1]61683部队,北京100094 [2]信息工程大学科研部,河南郑州450001 |
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| 摘 要： | 提出了一种基于PDE（Partial Differential Equations）和小波插值的遥感图像放大方法。首先采用双三次插值方法，进行遥感图像的初始放大，再进行小波分解，将低频分量替换为原图像，小波合成，获得小波放大结果，并采用PDE方法中的自蛇模型做后处理。同经典的图像放大方法进行对比实验表明，文章方法能够有效地解决遥感图像放大后边缘模糊的问题，能够更清晰地显示地面细节，更好地显示地物目标的轮廓。
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| 关 键 词： | 图像放大 小波分析 偏微分方程 自蛇模型 |
Image Zooming Based on PDE and Wavelet |
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| DAI Cun-bing,GAO Yong-guang,LIU Jian-ping,HE Peng-cheng,WU Shao-min.Image Zooming Based on PDE and Wavelet[J].Journal of Information Engineering University,2012,13(1):82-85. |
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| Authors: | DAI Cun-bing GAO Yong-guang LIU Jian-ping HE Peng-cheng WU Shao-min |
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| Affiliation: | 1. Unit 61683, Beijing 100094, China; 2. Department of Science, Information Engineering University,Zhengzhou 450001, China) |
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| Abstract: | This paper brings forward a method of remote sensing image zooming based on PDE and wavelet interpolation. First, bi-cubic interpolation is adopted for initial remote sensing image zooming. Then low-frequency components are replaced by original images with wavelet decomposition. The results of wavelet zooming after wavelet synthesization are processed with the self-snake model based on PDE. Compared with typical image zooming,this method can effectively solve the problem of edge fuzzy of zoomed remote sensing images, with ground details and object profiles shown more clearly. |
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| Keywords: | image zooming wavelet analysis PDE self-snake model |
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