旋转图像中线目标的复原与提取方法研究

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。

Recovering and extracting methods of linear targets in revolving images

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.