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FAST BLOCK-BASED TRUE MOTION ESTIMATION USING DISTANCE DEPENDENT THRESHOLDS (DTS)

机译:使用距离相关阈值(DTS)的基于快速块的真实运动估计

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摘要

A new fast motion estimation algorithm, called distance dependent thresholding search (DTS), is presented for block-based true motion estimation applications, and introduces the novel concept of variable distance dependent thresholds. The performance of the DTS algorithm is analyzed and quantitatively compared with both the traditional and exhaustive full-search (FS) technique, and the computationally faster, non-exhaustive three-step-search (TSS) algorithm. Experimental results show that by applying an appropriate threshold function, the DTS algorithm not only matches the speed of the TSS algorithm, but both retains a block distortion error comparable to the global minimum produced by the FS algorithm, and avoids the problem of identifying a large number of spurious motion vectors in the search process.
机译:提出了一种新的快速运动估计算法,称为距离相关阈值搜索(DTS),用于基于块的真实运动估计应用,并介绍了可变距离相关阈值的新颖概念。 DTS算法的性能经过分析,并与传统和穷举全搜索(FS)技术以及计算速度更快,非穷举的三步搜索(TSS)算法进行了定量比较。实验结果表明,通过应用适当的阈值函数,DTS算法不仅与TSS算法的速度相匹配,而且还保留了与FS算法产生的全局最小值相当的块失真误差,并且避免了识别较大的问题。搜索过程中虚假运动矢量的数量。

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