| 基于各向异性MRF建模的多帧图像 变分超分辨率重建 |
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| 引用本文： | 邵文泽,韦志辉.基于各向异性MRF建模的多帧图像 变分超分辨率重建[J].电子学报,2009,37(6):1256-1263. |
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| 作者姓名： | 邵文泽 韦志辉 |
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| 作者单位： | 南京理工大学计算机科学与技术学院,江苏南京,210094 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划)，江苏省自然科学基金，教育部高等学校博士学科点专项科研基金 |
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| 摘 要： | 本文首先研究设计出结构自适应的各向异性数字滤波器,同时导出广义各向异性MRF(Markov Random Field)图像模型.它继承了各向异性数字滤波器的滤波性能,是对双边全变差模型以及经典 MRF模型的有效改进.随后,提出各向异性模型驱动的联合估计亚像素运动和高分辨率图像的变分超分辨率重建算法.实验结果显示,本文算法具有更优的噪声抑制和边缘保持性能.
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| 关 键 词： | 超分辨率 图像复原 各向异性MRF模型 双边滤波 运动估计 |
| 收稿时间： | 2007-08-27 |
Multi-Frame Super-Resolution Reconstruction Based on Anisotropic Markov Random Field Modeling |
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| SHAO Wen-ze,WEI Zhi-hui.Multi-Frame Super-Resolution Reconstruction Based on Anisotropic Markov Random Field Modeling[J].Acta Electronica Sinica,2009,37(6):1256-1263. |
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| Authors: | SHAO Wen-ze WEI Zhi-hui |
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| Affiliation: | School of Computer Science and Technology;Nanjing University of Science and Technology;Nanjing;Jiangsu 210094;China |
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| Abstract: | A variational super-resolution reconstruction method is proposed.First of all,a kind of structure-adaptive anisotropic filter is designed based on the recently reported bilateral filtering.It is not only edge-preserving but also cornerpreserving.Then,an anisotropic Markov random field(MRF)model is deduced,which is the improvement of both the classical MRF and bilateral total variation image models.Driven by the anisotropic MRF model,an edge-enhancing super-resolution algorithm is subsequently proposed,simul... |
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| Keywords: | super-resolution image restoration anisotropic MRF model bilateral filter motion estimation |
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