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首页> 外文会议>Electro-Optical and Infrared Systems: Technology and Applications IV; Proceedings of SPIE-The International Society for Optical Engineering; vol.6737 >Automatic Focusing Techniques for Infrared Sensors
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Automatic Focusing Techniques for Infrared Sensors

机译：红外传感器的自动聚焦技术

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摘要

In this paper we study passive focusing techniques for infrared sensors. We present a survey of existing focus measures, i.e. functionals that give an estimate of the quality of focus as a function of the lens position. We synthesize the material proposed in the literature and show that all the approaches exploit the same general layout differing only for the choice of the filtering technique used to extract the image details. We present and discuss experimental results obtained on real infrared data taken in many operating conditions. The experimental analysis aims at comparing the quality of the focus measures and at evaluating their impact of the subsequent algorithm that searches the best focus position of the lens. For this purpose, we propose a comparative analysis based on three important properties of the focus measure: symmetry, smoothness and peakdness.
机译：在本文中，我们研究了红外传感器的被动聚焦技术。我们对现有的聚焦测量进行了调查，即可以根据透镜位置对聚焦质量进行估算的功能。我们综合了文献中提出的材料，并表明所有方法都利用相同的总体布局，仅在选择用于提取图像细节的过滤技术方面有所不同。我们提出并讨论在许多操作条件下根据真实红外数据获得的实验结果。实验分析旨在比较聚焦措施的质量，并评估其对搜索镜头最佳聚焦位置的后续算法的影响。为此，我们提出了一种基于焦点测量的三个重要属性的比较分析：对称性，平滑度和峰度。

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