| 基于对比度积累的弱点目标检测 |
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| 引用本文： | 张海英,张田文,温玄. 基于对比度积累的弱点目标检测[J]. 哈尔滨工业大学学报, 2007, 39(3): 447-451 |
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| 作者姓名： | 张海英 张田文 温玄 |
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| 作者单位： | 哈尔滨工业大学,计算机科学与技术学院,哈尔滨,150001;厦门大学,软件学院,厦门,361005;哈尔滨工业大学,计算机科学与技术学院,哈尔滨,150001;厦门大学,嘉庚学院,厦门,363105 |
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| 基金项目： | 航天支撑技术基金资助项目(HT010415) |
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| 摘 要： | 为了更好地跟踪及预测目标位置,首先针对采样序列构造两点起始航迹,然后进行一次回溯提前剪支.在轨迹互联阶段,依据目标像素具备的局部对比度极大似然特性开展边检测边跟踪.同时结合曲率约束进行目标位置的平滑.后处理时,设计的“与逻辑”滤波器用于检验三帧图像间的相关性,逆向的搜索策略可以将虚假航迹剔除80%以上.最后,通过沿着航迹进行对比度的积累,能够检测出被云层遮挡的多个点目标.实验阶段的多组图像序列验证了该算法的有效性.
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| 关 键 词： | 点目标 边检测边跟踪 曲率约束 与逻辑滤波器 管道 |
| 文章编号： | 0367-6234(2007)03-0447-05 |
| 修稿时间： | 2005-05-23 |
The detection of dim point targets based on accumulated contrast |
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| ZHANG Hai-ying,ZHANG Tian-wen,WEN Xuan. The detection of dim point targets based on accumulated contrast[J]. Journal of Harbin Institute of Technology, 2007, 39(3): 447-451 |
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| Authors: | ZHANG Hai-ying ZHANG Tian-wen WEN Xuan |
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| Affiliation: | 1.School of Computer Science and Technology;Harbin Institute of Technology;Harbin 150001;China;2.Software School;Xiamen University;Xiamen 361005;3.Tan Kah Kee college Xiamen University;Xiamen 363105;China |
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| Abstract: | To better track and predict the position of target, the initial traces are first created using the first two frames of sampling sequence and then the pruning is carried out by the backdate process.During the data association,a kind of track before detection scheme is practiced based on the local contrast maximum likelihood of the targets.At the same time the predicted position of the targets are smoothed by curvature limitation.In the post processing an "And Logical" filter is designed for testing the corre... |
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| Keywords: | point target track before detection curvature limitation and logical filter pipeline |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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