| 一种有效的三步运动估计算法 |
| 投稿时间：2009-12-03 修订日期：2009-12-09 点此下载全文 |
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| 中文摘要:为了减小运动估计算法的计算复杂度及提高红外图像超分辨率重建的可靠性，提出了一种有效的三步搜索算法。该算法采用多步搜索策略，根据运动矢量分布的中心偏移性及并行处理的思想，在最佳匹配点所在的区域使用菱形小模板代替新三步法中的正方形小模板来进行精细搜索，以提高算法的搜索精度。实验结果表明，通过和全搜索法、菱形搜索算法和预测性菱形搜索算法相比较，该算法在保证搜索精度的同时能大幅度缩短消耗时间。 |
| 中文关键词:超分辨率重建 红外图像 运动估计 块匹配 运动矢量 |
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| An Effective Three-step Search Algorithm for Motion Estimation |
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| Abstract:An effective three-step search algorithm which can reduce the motion estimation algorithm for computing the complexity and improve the infrared image of the reliability of the super-resolution reconstruction is presented in this paper. According to the center offset of the motion vector and parallel processing, a small diamond search template is used to replace the small square template which comes from the N3SS algorithm in the region where the best matching points exist in order to improve the search accuracy. Experimental results show that the new algorithm not only ensures the search accuracy but also reduces calculation time by a large margin. |
| keywords:super-resolution reconstruction infrared image motion estimation block matching motion vector |
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