| 基于有向地形表面特征的尺度不变性地形匹配 |
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| 引用本文： | 李立春,苑云,桂阳,张小虎,于起峰.基于有向地形表面特征的尺度不变性地形匹配[J].计算机工程与应用,2010,46(11):236-239. |
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| 作者姓名： | 李立春 苑云 桂阳 张小虎 于起峰 |
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| 作者单位： | 国防科技大学航天与材料工程学院,长沙,410073 |
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| 摘 要： | 针对条带地形的地形匹配定位，提出了航带地形的有向地形表面特征描述及匹配方法。在航带的一维方向上检测极值点，同时利用区域中心的极值点及其地形表面的切线作为参考，利用地形极值点相对于参考点和参考线的相对位置关系构造地形的具有不变性的特征，基于特征的距离计算和比较，实现了具有抵抗尺度变化等相似变换的地形匹配方法。仿真实验证明了该方法的有效性，对于从序列图像重建地形的匹配定位具有重要意义。
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| 关 键 词： | 地形匹配 有向地形特征 尺度不变性 定位 制导 |
| 收稿时间： | 2008-10-9 |
| 修稿时间： | 2009-1-7
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Scale invariant terrain contour matching based on oriented terrain-surface feature |
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| LI Li-chun,YUAN Yun,GUI Yang,ZHANG Xiao-hu,YU Qi-fengCollege of Aerospace , Material Engineering,National University of Defense Technology,Changsha ,China.Scale invariant terrain contour matching based on oriented terrain-surface feature[J].Computer Engineering and Applications,2010,46(11):236-239. |
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| Authors: | LI Li-chun YUAN Yun GUI Yang ZHANG Xiao-hu YU Qi-fengCollege of Aerospace Material Engineering National University of Defense Technology Changsha China |
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| Affiliation: | LI Li-chun,YUAN Yun,GUI Yang,ZHANG Xiao-hu,YU Qi-fengCollege of Aerospace , Material Engineering,National University of Defense Technology,Changsha 410073,China |
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| Abstract: | A method of stripe-terrain describing and matching based on the oriented terrain-surface feature is proposed aiming at position of a stripe-terrain.To describe the terrain of a region,the vertexes are detected from the terrain map firstly,and the vertex at the center of the region is selected as the referenced point,tangent of the terrain surface at the referenced point is selected as the referenced axis.The relative position between the vertexes and the referenced point and axis is used to construct the in... |
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| Keywords: | terrain contour matching oriented terrain feature scale invariant positioning navigation |
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