Final optics of high energy laser facilities are susceptible to laser-induced damage that reduces the quality of laser beams. In such facilities, images of protection windows are acquired on a daily basis. However, some motions may occur in addition to illumination changes. A method based on registration principles is developed to detect and quantify laser damage sites, which leads to sub-pixel resolution and corrects for brightness and contrast variations. The procedure is applied to a set of actual images of a silica window. The proposed approach is efficient to ensure reliable monitoring of damage inception and growth.

中文翻译：

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通过数字图像相关检测和跟踪熔融石英元件上的激光损伤位置

高能激光设备的最终光学器件容易受到激光诱导的损坏，从而降低激光束的质量。在这些设施中，每天都会获取防护窗的图像。然而，除了光照变化之外，还可能发生一些运动。开发了一种基于配准原理的方法来检测和量化激光损伤部位，从而实现亚像素分辨率并校正亮度和对比度变化。该过程应用于一组二氧化硅窗口的实际图像。所提出的方法可以有效地确保对损害开始和增长的可靠监测。