Adaptive Multiple-Frame Image Super-Resolution Based on U-Curve
Adaptive Multiple-Frame Image Super-Resolution Based on U-Curve
复制标题
基于U曲线的自适应多帧图像超分辨率
DOI:
10.1109/tip.2010.2055571
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发表时间:
2010-12
影响因子:
10.6
通讯作者:
Li, Pingxiang
中科院分区:
文献类型:
--
作者:
Yuan, Qiangqiang;Zhang, Liangpei;Shen, Huanfeng;Li, Pingxiang
Image super-resolution (SR) reconstruction has been a hot research topic in recent years. This technique allows the recovery of a high-resolution (HR) image from several low-resolution (LR) images that are noisy, blurred and down-sampled. Among the available reconstruction frameworks, the maximum a posteriori (MAP) model is widely used. In this model, the regularization parameter plays an important role. If the parameter is too small, the noise will not be effectively restrained; conversely, the reconstruction result will become blurry. Therefore, how to adaptively select the optimal regularization parameter has been widely discussed. In this paper, we propose an adaptive MAP reconstruction method based upon a U-curve. To determine the regularization parameter, a U-curve function is first constructed using the data fidelity term and prior term, and then the left maximum curvature point of the curve is regarded as the optimal parameter. The proposed algorithm is tested on both simulated and actual data. Experimental results show the effectiveness and robustness of this method, both in its visual effects and in quantitative terms.
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影响因子:
10.6
作者:
Shen, Huanfeng;Zhang, Liangpei;Li, Pingxiang
通讯作者:
Li, Pingxiang
DOI:
10.1109/83.382494
发表时间:
1995-05
期刊:
IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
影响因子:
--
作者:
M. Kang;A. Katsaggelos
通讯作者:
M. Kang;A. Katsaggelos
DOI:
10.1093/comjnl/bxn031
发表时间:
2007-12
期刊:
2007 15th European Signal Processing Conference
影响因子:
--
作者:
M. Vega;J. Mateos;R. Molina;A. Katsaggelos
通讯作者:
M. Vega;J. Mateos;R. Molina;A. Katsaggelos
影响因子:
5.6
作者:
Alam, MS;Bognar, JG;Yasuda, BJ
通讯作者:
Yasuda, BJ
DOI:
10.1016/1049-9652(91)90045-l
发表时间:
1991-05-01
期刊:
CVGIP-GRAPHICAL MODELS AND IMAGE PROCESSING
影响因子:
--
作者:
IRANI, M;PELEG, S
通讯作者:
PELEG, S