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Improved Roberts focusing evaluation method for an autofocusing system

机译:改进的自动对焦系统罗伯茨对焦评估方法

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摘要

In this paper, a new focusing evaluation method based on local 2/8 center windows is proposed for an autofocusing system. We have proposed an evaluation function which improved the Roberts function with eight-neighborhood or four-neighborhood. The approximate optimal criteria window is selected by a 2/8 rule. Comparative experiments implemented with other methods have shown that the 2/8 rule method not only can find the approximate optimal evaluation window quickly, but also has better generality. This evaluation function of improved Roberts' function has higher sensitivity and better real-time performance.
机译:本文提出了一种基于局部2/8中心窗口的自动对焦系统新的对焦评估方法。我们提出了一个评估函数,该函数通过八个邻域或四个邻域来改进罗伯茨函数。通过2/8规则选择近似最佳标准窗口。与其他方法进行的比较实验表明,2/8规则方法不仅可以快速找到近似的最优评估窗口,而且具有更好的通用性。改进的罗伯茨功能的评估功能具有更高的灵敏度和更好的实时性能。

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