arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.00732cs.CV
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稳健的单次旋转平均

Robust Single Rotation Averaging

University of Zaragoza(萨拉戈萨大学)

Seong Hun Lee, Javier Civera

摘要:

我们提出了一种新的方法,单旋转平均使用Weiszfeld算法。我们的贡献是三方面的:首先,我们提出了一个强大的初始化的基础上elementwise输入旋转矩阵的中位数。我们的初始解比常用的弦向$L_2$ -平均值更精确和鲁棒。其次,我们提出了一个离群拒绝计划,可以纳入Weiszfeld算法,以提高$L_1$旋转平均的鲁棒性。第三,我们提出了一种方法来近似弦$L_1$ -平均使用Weiszfeld算法。一个广泛的评估表明,我们的方法和最先进的执行同样好的建议离群拒绝计划,但我们的是$2-4$倍快。

英文摘要:

We propose a novel method for single rotation averaging using the Weiszfeld algorithm. Our contribution is threefold: First, we propose a robust initialization based on the elementwise median of the input rotation matrices. Our initial solution is more accurate and robust than the commonly used chordal $L_2$-mean. Second, we propose an outlier rejection scheme that can be incorporated in the Weiszfeld algorithm to improve the robustness of $L_1$ rotation averaging. Third, we propose a method for approximating the chordal $L_1$-mean using the Weiszfeld algorithm. An extensive evaluation shows that both our method and the state of the art perform equally well with the proposed outlier rejection scheme, but ours is $2-4$ times faster.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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