摘要
在现代战争条件下,能否对机场等境外大纵深重要战略目标的突袭效果进行实时评估,对下一步的作战行动有着至关重要的影响。跑道是机场的重要组成部分,其毁伤前后变化检测是机场封锁效果评估的第一步。对变化检测所面临的问题、检测参数、原理与算法进行了初步探讨,实验结果说明文中采用的相关系数法能够有效地检测到突袭前后航天侦察影像上跑道的有意义变化。
It is very important to the next eampaign step of the real-time evaluation of the object damage degree such as airport in the future war. The runway is the main part of the airport, to detect its change is the first step to evaluate the attacking effect to the airport. There are many questions should be considered in change detecting in runway＇s damage recognition, including images＇ quality, registration, changed region detecting, region of interesting detecting, change measurement and evaluation. Correlative questions such as change detecting parameters, the theory and the algorithm of runway change detecting are discussed in the paper. Gradation, texture, linear distributing, edge and corner of the image are considered to solve the question. Change detecting is done in little windows of two images of the same region which were obtained at different time, and the 4 texture parameters contrast, energy, entropy and relativity can be used to describe the window image＇s information. The method of correlation coefficient is used in the paper, and the experiment result shows that the algorithm can detect the significant changes of the runway after striking in space reconnaissance images when the appropriate window size and the proportion of the correlation coefficient are chosen.
出处
《遥感技术与应用》
CSCD
2005年第5期474-477,共4页
Remote Sensing Technology and Application
关键词
航天侦察影像
跑道
毁伤识别
变化检测
相关系数
Space reconnaissance image, Runway, Damage recognition, Change detection, Correlation coefficient
