摘要
针对运动背景下扩展目标的检测中,运动目标在图像上造成的变化与背景自身的变化会造成混淆,使得运动目标的检测变得更加复杂这一问题。提出了基于傅立叶变换的灰度成像扩展目标跟踪帧间图像配准方法。以帧间图像的互能量谱关系函数为系统的目标函数,以偏移量冲击函数为系统的偏移量配准函数。试验结果表明,采用该算法,得出目标图与偏移图水平向右移动14个像素,垂直向上移动1个像素。利用该参数将偏移图平移(-14,-1)即可实现两帧图像的配准。
In detecting extended targets under the dynamic background,the image variation caused by moving targets and the variation of background will give rise to confusion;this complicates detection of moving targets.In this study,the inter-fame image registration method of gray-scale imaging extended target tracking based on Fourier transform is proposed.In this method,the cross-energy spectrum relation function of inter-frame images is used as the objective function of the system,and the offset impulse function is taken as the offset registration function of the system.The experimental result shows that the target image and the offset image move horizontally right by 14 pixels and vertically upward by 1 pixel.Translating the offset image by using this parameter can realize images registration of two frames.
作者
秦雨萍
张萍
张双
QIN Yuping;ZHANG Ping;ZHANG Shuang(Engineering&Technical College of Chengdu University of Technology,Leshan 614000)
出处
《舰船电子工程》
2018年第3期33-35,71,共4页
Ship Electronic Engineering
基金
国家高技术研究发展计划(863计划)基金项目(编号:A08K021)
国家自然科学基金面上项目(编号:61201397
11375055)
四川省教育厅重大培育项目(编号:17CZ005)
四川省教育厅基金项目(编号:17ZA047)资助
关键词
傅立叶变换
图像配准
互能量谱
偏移量
冲击函数
Fourier transform
image registration
cross energy spectrum
offset
impulse function
