天基平台深空运动小目标检测  

Discussion on Space-based Deep Space Small Moving Target Detection

作　　者：漆长松[1] 刘恩海[1] 钟建勇[1] 

机构地区：[1]中国科学院光电技术研究所

出　　处：《光电工程》2008年第5期28-32,共5页Opto-Electronic Engineering

摘　　要：针对天基平台探测深空运动目标的特点,本文简要介绍了天基空间目标监视系统工作在凝视成像模式下检测深空运动小目标的方法,在此基础上探讨了基于图像配准技术检测运动小目标方法在天基空间目标监视系统中的应用。本文提出一种星点间部最小距离特征的概念,构建局部最小距离特征的算法。该方法根据点群间的相对位置关系,采用递归搜索的方法构建特征。实验结果表明,局部最小距离特征在星图中分布均匀,实现了星图序列的快速配准,为基于图像配准技术实现运动目标检测的方法提供了保障。Based on the situation of the space-based small moving target detection on space surveillance system, we introduce the way working on staring model, and then discuss the way of small moving target detection based on image registration technology. Through finding out the local min distance between stars as star map characteristic quantity, a novel star map characteristic quantity is proposed. This characteristic quantity is used to align the neighbor star maps in the sequential images. Through subtraction, the background consisting of evolving clutter can be removed and the small moving target in space is detected. The result of the test shows that the local min distances in star maps distribute well proportionally and the star maps match well.

关 键 词：空间目标监视系统 运动小目标检测 凝视成像 图像配准 动态规划 

分 类 号：V556[航空宇航科学与技术—人机与环境工程]