旋转图像中线目标的复原与提取方法研究  

Recovering and extracting methods of linear targets in revolving images

作　　者：范培蕾[1] 张晓今[1] 杨涛[1] 寇保华[1] 

机构地区：[1]国防科学技术大学航天与材料工程学院,湖南长沙410073

出　　处：《红外与激光工程》2007年第4期547-550,共4页Infrared and Laser Engineering

基　　金：武器装备预研基金项目(51400010304KG0178)

摘　　要：图像制导的滚转制导弹药中的成像探测器与弹体固连,由于弹体的滚转运动,会使探测器获取的图像中的线目标发生弯曲畸变现象。以机场跑道为例,从理论上分析了其旋转图像畸变弯曲的原因,建立了相应的数学复原模型,并在此基础上利用最小二乘参数估计与Hough变换相结合的方法对跑道边缘直线参数进行估计,计算分析结果表明,此方法实时性高、可靠性好、适应性强,对于各种失真现象的分析以及线目标的提取具有一定的应用价值。When a detector is fixed within the missile body for the rolling guiding ammunition with image-guidance, the images of linear targets obtained by the detector will be severely distorted as a result of the missile＇s rolling. Runway is one kind of linear targets. This paper analyses in detail the cause of runway＇s aberration into curves in revolving images and establishes a corresponding mathematical model to perform recoveries including airport runway feature extracting and parameter estimation using OLS and Hough transform combined. Experimental results show that the method is highly efficient , reliable as well as stable. It could also be applied to some relavant fields.

关 键 词：旋转图像 弯曲畸变 图像复原 HOUGH变换 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]