摘要
为了客观、准确及定量地评估激光干扰效果,给出了图像边缘强度的定义及计算方法,提出了一种基于边缘强度相似度的干扰图像尺度.该尺度通过计算目标图像和背景图像的相似程度来衡量激光干扰效果,相似度越高表明激光干扰效果越好.激光视场内及视场外干扰实验与数值计算表明:该图像尺度可以较好反映激光干扰对CCD成像探测系统目标检测算法性能的影响.同时,通过对荷兰TNO研究所提出的Search_2数据库的计算表明,提出的干扰图像尺度和目前常用光电图像杂波尺度相比,与实际人眼实验结果具有更好的一致性.
In order to evaluate the performance of laser jamming objectively,precisely and quantitatively,the definition of image edge strength and its computation method are provided,and an objective image metrics based on the edge strength similarity was proposed.The metrics evaluate the laser jamming performance by computing the similarity between the target image and laser jamming image.The higher the similarity between target and background is,the better the laser interference performance is.Experimental results of laser interference in and out the field of view show that the proposed metrics could realize quantitative appraisal of laser jamming performance on CCD imaging detection system and have a better consistency with the eye′s experimental data in the prediction of detection probability than common clutter metrics by taking use of the Search_2dataset.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2014年第10期138-143,共6页
Acta Photonica Sinica
基金
State Key Laboratory of Pulsed Power Laser Technology Funds(No.13J1003)
The Key Laboratory Funds of Optoelectronic Information Control and Security Technology of China(No.20100713-003)
