| 弱目标运动参数的三维频域估计 |
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| 引用本文： | 朱晖,魏洛刚,汪国有,彭嘉雄.弱目标运动参数的三维频域估计[J].华中科技大学学报(自然科学版),1994(5). |
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| 作者姓名： | 朱晖 魏洛刚 汪国有 彭嘉雄 |
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| 作者单位： | 华中理工大学图像识别与人工智能研究所 |
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| 摘 要： | 具有不同平移运动速度的目标和背景图像在三维频域中形成两个分别与目标和背景运动参数有关的能量聚积平面，提出了用霍夫变换检测这两个平面、确定背景和目标的运动参数的方法。该方法可用于连续多帧图像情况下在低信噪比时估计运动目标的参数。
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| 关 键 词： | 运动估计，三维富氏变换，霍夫变换，目标检测 |
The Estimation of Motion Parameters for the Weak Target in a 3-D Frequency Domain |
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| Zhu HuiInst.of Pattern Recognition & AI,H,U.S.T,Wuhan ,China.,Wei Luogang,Wang Guoyou,Peng Jiaxiong.The Estimation of Motion Parameters for the Weak Target in a 3-D Frequency Domain[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1994(5). |
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| Authors: | Zhu HuiInstof Pattern Recognition & AI H UST Wuhan China Wei Luogang Wang Guoyou Peng Jiaxiong |
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| Institution: | Zhu HuiInst.of Pattern Recognition & AI,H,U.S.T,Wuhan 430074,China.,Wei Luogang,Wang Guoyou,Peng Jiaxiong |
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| Abstract: | The characteristics of an image sequence of a weak moving target in a 3-D frequency do-main are discussed.A mathematical analysis shows that,owing to the different translatingvelocities of the background and the target,two energy accumulating planes correspondingrespectively to the motion parameters of the background and of the target are formed.TheHough Transform technique is used to detect the accumulation planes in the 3-D frequencydomain and a method for determining the motion parameters of both the background and thetarget is proposed. |
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| Keywords: | motion estimation 3-D Fourier Transform Hough Transforrn target detec-tion |
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