| 基于正交投影特性的带状目标检测 |
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| 引用本文： | 倪维平,徐刚锋,李飚,王平.基于正交投影特性的带状目标检测[J].红外与激光工程,2007,36(3):407-411. |
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| 作者姓名： | 倪维平 徐刚锋 李飚 王平 |
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| 作者单位： | 国防科学技术大学,ATR国防科技重点实验室,湖南,长沙,410073 |
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| 摘 要： | 图像中带状目标在行列上具有规则的几何特性，其边缘映射图在笛卡儿坐标系下的正交投影具有显著性特征。由此提出了一种基于正交投影特性的带状目标检测方法。基于Hough变换的思想，引出一种投影变换，利用投影宽度谱的局部峰值定位边缘映射图中的带状目标。为减小噪声点影响，给出一种距离约束准则下的序贯最小二乘直线拟合方法。对两组图像数据进行了算法验证，实验结果表明，算法识别精度高、实时性好，具有很强的鲁棒性。
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| 关 键 词： | 带状目标 正交投影 投影宽度谱 序贯最小二乘法 |
| 文章编号： | 1007-2276（2007）03-0407-05 |
| 收稿时间： | 2006/8/18 |
| 修稿时间： | 2006-08-182006-10-15 |
Detection of band object based on the characteristics of cross-projection |
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| NI Wei-ping,XU Gang-feng,LI Biao,WANG Ping.Detection of band object based on the characteristics of cross-projection[J].Infrared and Laser Engineering,2007,36(3):407-411. |
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| Authors: | NI Wei-ping XU Gang-feng LI Biao WANG Ping |
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| Affiliation: | ATR Laboratory,National University of Defence Technology,Changsha 410073,China |
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| Abstract: | The band objects in image have inerratic geometric characteristics on the rows and columns. Thus, the cross-projection of the edge-mapped image presents prominent characteristics in the Cartesian reference frame. A method to detect the band object based on the characteristics of the crossprojection is presented. First, a project-transform which is based on the idea of the Hough transform is discussed. Then, the width at the local salient peak of the projection width spectrum is used to extract the band object from the edge-mapped image. A sequent least square method with distance constraint is used to compute the line parameters from the image to reduce the influence of the noise. Experimental results indicate that the algorithm has high recognition precision, good time efficiency and strong robustness. |
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| Keywords: | Band object Cross projection Projection width spectrum Sequent least square method |
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