| 基于总体方差最小消去DCT的方块效应 |
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| 引用本文： | 周昌雄,于盛林. 基于总体方差最小消去DCT的方块效应[J]. 电子科技大学学报(社会科学版), 2005, 0(5) |
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| 作者姓名： | 周昌雄 于盛林 |
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| 作者单位： | 南京航空航天大学自动化学院 南京210016(周昌雄)，南京航空航天大学自动化学院 南京210016(于盛林) |
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| 摘 要： | 提出基于总体方差最小消去离散余弦变换DCT的方块效应,推导出水平集方程,用最小/最大曲率流替代水平集中的平均曲率流。该方法在平滑噪声和消去方块效应的同时,能保留图像的主要结构特征。后续分割实验结果表明,该方法比均值滤波后的图像有更好的视觉和分割效果。
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| 关 键 词： | 总体方差最小 最小/最大曲率流 离散余弦变换 方块效应 |
Removing DCT Blocking Effects Basd on Minimization of Total Variation |
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| ZHOU Chang-xiong,YU Sheng-lin. Removing DCT Blocking Effects Basd on Minimization of Total Variation[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2005, 0(5) |
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| Authors: | ZHOU Chang-xiong YU Sheng-lin |
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| Affiliation: | College of Automation Engineering Nanjing University of Aeronautics and Astronautic Nanjing 210016 |
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| Abstract: | In this paper, minimization of total variation has been proposed via level set equation and average curvature flow has been substituted with Min/Max curvature flow. This method can preserve the main structure of image, smoothing noise and removing discrete cosine transform blocking effects. The experimental results indicate that the proposed method has better perform of vision and segmentation than average filter. |
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| Keywords: | minimization of total variation Min/Max curvature flow discrete cosine transform blocking effect |
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