| 无源毫米波超分辨算法及实时性研究 |
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| 引用本文： | 李良超,杨建宇,郑鑫,姜正茂. 无源毫米波超分辨算法及实时性研究[J]. 电子科技大学学报(社会科学版), 2009, 0(6) |
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| 作者姓名： | 李良超 杨建宇 郑鑫 姜正茂 |
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| 作者单位： | 电子科技大学电子工程学院; |
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| 基金项目： | 国家自然科学基金重点项目(60632020) |
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| 摘 要： | 针对无源毫米波成像中图像分辨率低的问题,提出了一种改进的最大后验(MAP)超分辨算法。该算法结合了Wiener滤波复原算法和基于泊松分布的MAP算法的优点,使用Wiener滤波复原算法恢复图像通带内的低频分量,运用MAP算法作为主迭代过程实现频谱外推,同时保证低频分量不被破坏;并对该算法的计算复杂度和实时性进行了分析。通过仿真可知,该算法可有效地恢复图像截止频谱外的信息,提高图像空间分辨率,处理时间少,易于实现并行处理。
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| 关 键 词： | 最大后验 无源毫米波 实时性 超分辨 |
Research on Passive Millimeter Wave Image Super-Resolution Algorithm and Real-time Implementation |
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| LI Liang-chao,YANG Jian-yu,ZHENG Xin,, JIANG Zheng-mao. Research on Passive Millimeter Wave Image Super-Resolution Algorithm and Real-time Implementation[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2009, 0(6) |
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| Authors: | LI Liang-chao YANG Jian-yu ZHENG Xin JIANG Zheng-mao |
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| Affiliation: | LI Liang-chao,YANG Jian-yu,ZHENG Xin,, JIANG Zheng-mao(School of Electronic Engineering,University of Electronic Science , Technology of China Chengdu 610054) |
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| Abstract: | To solve the problem of poor resolution in passive millimeter wave(PMMW) imaging,we present an improved maximum a posteriori(MAP) super-resolution algorithm.The algorithm combines the advantages of Wiener filter restoration algorithm and MAP algorithm based on Poisson distribution.The Wiener filter is employed to restore the pass-band spectrum,and the MAP algorithm is applied to complete spectral extrapolation as the main iterative process to ensure that low-frequency component is not destroyed as spectral ... |
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| Keywords: | maximum a posteriori passive millimeter wave real-time super-resolution |
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