| 基于总变分的超分辨率图像重建 |
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| 引用本文： | 周卫峰,李成军,朱重光. 基于总变分的超分辨率图像重建[J]. 计算机工程与应用, 2007, 43(36): 91-93 |
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| 作者姓名： | 周卫峰 李成军 朱重光 |
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| 作者单位： | 中国科学院研究生院,北京,100049;中国科学院遥感应用研究所,北京,100101;中国科学院遥感应用研究所,北京,100101 |
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| 摘 要： | 超分辨率图像重建是指从一组降晰的低分辨率图像重建出一帧清晰的高分辨率图像的过程。建立了超分辨率图像重建的数学模型，估计出场景在观测图像中的运动参数，选择总变分规整化克服问题的病态性得到重建结果。运用算法对模拟和实际图像序列进行重建，分别从主观效果和客观衡量标准两方面与基于Tikhonov规整化的超分辨率重建结果进行比较，结果表明该算法具有更好的处理效果。
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| 关 键 词： | 超分辨率 运动估计 总变分规整化 共轭梯度 |
| 文章编号： | 1002-8331(2007)36-0091-03 |
| 修稿时间： | 2007-07-01 |
Super resolution image reconstruction based on total variation |
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| ZHOU Wei-feng,LI Cheng-jun,ZHU Chong-guang. Super resolution image reconstruction based on total variation[J]. Computer Engineering and Applications, 2007, 43(36): 91-93 |
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| Authors: | ZHOU Wei-feng LI Cheng-jun ZHU Chong-guang |
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| Affiliation: | 1.Graduate School of Chinese Academy of Sciences，Beijing 100049，China 2.Institute of Remote Sensing Applications，Chinese Academy of Sciences，Beijing 100101，China |
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| Abstract: | Super resolution image reconstruction is the process of reconstructing a high-resolution image from a set of degraded low-resolution images.The image formation model is introduced,then a motion estimation algorithm is proposed,and total variation is chosen to regularize the ill-posed problem.Simulated and practically taken image sequences are used in the experiments,and the results show that the proposed algorithm has better subjective vision effect and objective quality than that by Tikhonov regularization based reconstruction. |
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| Keywords: | super resolution motion estimation total variation regularization conjugate gradient |
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