| 基于分区动态规划和航迹关联的弱小目标检测 |
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| 引用本文： | 陈尚锋,肖山竹,卢焕章.基于分区动态规划和航迹关联的弱小目标检测[J].红外与激光工程,2007,36(5):738-741. |
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| 作者姓名： | 陈尚锋 肖山竹 卢焕章 |
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| 作者单位： | 国防科学技术大学,ATR国防重点实验室,湖南,长沙,410073 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 序列图像中低信噪比运动弱小目标的实时检测算法，是精确制导系统中的关键算法之一。提出一种图像序列弱小目标实时检测新算法，采用分方向区间的动态规划算法和二值图像航迹关联检测。通过在动态规划能量累加过程中引入方向限制，减小了噪声轨迹能量积累和目标轨迹能量扩散，提高了算法的目标检测能力。对算法的检测性能进行了仿真实验，结果表明该算法能有效检测深空背景下信噪比大于1.8、运动方向任意、速度不大于1像素/帧的多个运动弱小目标。
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| 关 键 词： | 弱小目标检测 动态规划 航迹关联 |
| 文章编号： | 1007-2276（2007）05-0738-04 |
| 收稿时间： | 2007/2/5 |
| 修稿时间： | 2007-02-05 |
Dim targets detection based on multi-regions dynamic programming and track matching |
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| CHEN Shang-feng,XIAO Shan-zhu,LU Huan-zhang.Dim targets detection based on multi-regions dynamic programming and track matching[J].Infrared and Laser Engineering,2007,36(5):738-741. |
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| Authors: | CHEN Shang-feng XIAO Shan-zhu LU Huan-zhang |
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| Affiliation: | ATR Key Lab, National University of Defense Technology, Changsha 410073, China |
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| Abstract: | The real-time detection algorithm of moving dim small targets in image sequences is one of the key algorithms in precise guidance system. A real-time target detection algorithm is proposed, which employs dynamic programming(DP) and track matching algorithm in multi target moving regions in image sequences. After performing DP separately in multi speed-direction regions, noise trajectory energy accumulation and target trajectory divarication decrease. As a result, target enhancements are achieved. Simulational experiments show that low SNR(>1.8) moving targets with arbitrary speed direction and maximum speed of 1 pix/frame can be detected with high probability. |
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| Keywords: | Dim targets detection Dynamic programming Track matching |
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