| 基于运动矢量的视频去抖动算法 |
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| 引用本文： | 宋利,周源华,周军.基于运动矢量的视频去抖动算法[J].上海交通大学学报,2004,38(Z1):63-66. |
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| 作者姓名： | 宋利 周源华 周军 |
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| 作者单位： | 上海交通大学,图像通信与信息处理研究所,上海,200030 |
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| 基金项目： | 国家自然科学基金资助项目(69905003) |
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| 摘 要： | 采用新的几何分析方法建立了视频去抖动处理的数学模型,提出一种基于运动矢量的视频去抖动算法.采用新的快速M鲁棒估计法获得摄像机全局运动参数集;滤波该参数集滤除随机抖动带来的运动噪声.为了提高算法的可靠性,在全局运动估计之前对原始运动矢量进行了时空滤波;在运动校正阶段,引入了"重同步"机制防止差错累积.实验表明,该算法具有良好的去抖动效果,能够用于实时处理.
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| 关 键 词： | 视频去抖动 全局运动 鲁棒估计 |
| 文章编号： | 1006-2467(2004)S0-0063-04 |
| 修稿时间： | 2003年11月17 |
Video Stabilization Algorithm Based on Motion Vectors |
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| SONG Li,ZHOU Yuan-hua,ZHOU Jun.Video Stabilization Algorithm Based on Motion Vectors[J].Journal of Shanghai Jiaotong University,2004,38(Z1):63-66. |
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| Authors: | SONG Li ZHOU Yuan-hua ZHOU Jun |
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| Abstract: | This paper proposed a mathematical mode for video stabilization by means of novel geometry analysis. The method got global motion parameters by local motion vectors through quick M-robust estimation; these parameters are filtered to remove stochastic motion noise. In order to improve the stabilization, the original motion vectors are filtered in the spatial-temporal domain before global motion estimation and an effective "resynchronization" scheme is introduced to prevent error accumulation during motion correction. The experiments show that the proposed algorithm has good stabilization effects and can be used to real-time process. |
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| Keywords: | video stabilization global motion robust estimation |
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