| 老影视资料中斑点损伤的数字修复方法 |
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| 引用本文： | 李继豪,闵友钢,韩军. 老影视资料中斑点损伤的数字修复方法[J]. 计算机仿真, 2009, 26(6): 250-253 |
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| 作者姓名： | 李继豪 闵友钢 韩军 |
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| 作者单位： | 上海大学通信与信息工程学院,上海,200072;上海音像资料馆,上海,200051 |
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| 摘 要： | 斑点是老影视资料中很普遍的损伤.针对斑点损伤的修复问题,提出了一种时空结合的斑点修复模型.采用双向匹配的多级运动估计方法进行运动估计.根据斑点的时间不连续特性对斑点进行粗检测,再利用斑点的空间一致特性对斑点粗检测结果进行优化.考虑斑点的大小、位置及所处背景纹理的不同,采用分类插值的方法来去除斑点.针对受损视频序列进行了实验,结果表明去除斑点的效果很好,证明方法是有效、实用且易于实现的.
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| 关 键 词： | 斑点修复 时空模型 分类插值 |
Digital Restoration of Blotch Artifact in Archived Film and Video |
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| LI Ji-hao,MIN You-gan,HAN Jun. Digital Restoration of Blotch Artifact in Archived Film and Video[J]. Computer Simulation, 2009, 26(6): 250-253 |
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| Authors: | LI Ji-hao MIN You-gan HAN Jun |
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| Affiliation: | 1.School of Communication and Information Engineering;Shanghai University;Shanghai 200072;China;2.Shanghai Audio & Video Museum;Shanghai 200051;China |
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| Abstract: | Blotches are common artifacts in archived film and video.This paper presents a spatio-temporal model for the restoration of blotches.Multiple hierarchical motion estimation with bidirectional matching is proposed to achieve motion estimate.The model starts with blotch detection based on temporal discontinuity of blotches to compute a coarse detection,then the coarse detection results are refined using spatial coherence of blotches.Considering various sizes,locations and backgrounds of blotches,classificatio... |
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| Keywords: | Blotch restoration Spatio-temporal model Classification interpolation |
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