激光干扰对CCD跟踪性能影响的图像尺度分析

分析CCD成像跟踪系统的组成及常用跟踪算法,针对激光干扰图像的特点,结合机器视觉中背景杂波的量化方法,提出一种基于小波能量与平方和根的图像尺度,并将其应用于激光干扰对成像跟踪性能的影响分析。该尺度利用小波能量尺度在成像跟踪系统方面以及平方和根尺度在目标局部对比度方面各自的优点,适用于激光干扰后跟踪算法性能的评估。激光视场内干扰与视场外干扰的实验结果表明,该尺度能够较好地反映激光干扰图像对于CCD成像跟踪算法性能的影响,初步验证了尺度的有效性。

Image metric analysis of laser jamming effect on CCD tracking performance

The structure of CCD imaging tracking system and traditional tracking algorithms were analyzing.Aiming at characteristics of laser jamming image and combined with background clutter metrics in machine vision,an image metric based on wavelet energy and RSS(root sum of squares) was proposed and it was applied to the analysis of laser jamming effect on CCD tracking performance.This metric made good use of advantages of wavelet energy metric in imaging tracking system and RSS metric in local contrast analysis.Moreover,it was applicable in performance evaluation of traditional tracking algorithms when jammed by laser.Experimental results of laser jamming both in the field of view and out the field of view show that the proposed metric can reflect influence of laser jamming on CCD imaging tracking algorithms.Hence,the validity of this metric is verified.