航空学报 > 2005, Vol. 26 Issue (3): 340-343

一种基于多特征融合的地形匹配

王广君1,2, 房建成2   

  1. 1. 中国地质大学(武汉) 信息技术实验中心, 湖北 武汉 430074;2. 北京航空航天大学 仪器科学与光电工程学院, 北京 100083
  • 收稿日期:2004-04-21 修回日期:2005-03-10 出版日期:2005-06-25 发布日期:2005-06-25

New Approach of Terrain Matching Based on Multi-features Fusion

WANG Guang-jun1,2, FANG Jian-cheng2   

  1. 1. The Lab. Center of Information Technology, China University of Geosciences(Wuhan), Wuhan 430074, China;2. School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  • Received:2004-04-21 Revised:2005-03-10 Online:2005-06-25 Published:2005-06-25

摘要: 提出了一种多特征融合的地形匹配算法,充分利用地形的各种不同的统计特征和几何特征,构造了一种地形匹配网络模型。通过对实时图和参考图分析,给出了计算网络节点之间的权值函数,建立了网络系统能量方程,通过求系统的最小能量得到最佳匹配位置。由于网络能融合地形的不同统计特征和几何特征,所以算法大大提高了系统的抗干扰能力和定位精度,适合于实时图容易发生畸变的地形匹配领域,实验结果表明,定位精度和抗干扰能力均优于传统的地形匹配方法。

关键词: 地形匹配, 神经网络, 多特征融合, 最小能量

Abstract: A new terrain matching neural network algorithm mode is constructed by means of multi-features fusion, which includes different statistical and geometrical features. By analyzing of the real terrain and the reference terrain, the connective weight function between different nodes is deduced, and the energy formula of the network system is structured. The matching position can be acquired by seeking the least system energy. As the algorithm can utilize different features sufficiently, it has higher matching precision, and also better robustness to noise and geometric distortion. The experimental results reveal that its performance is better than that of the conventional.

Key words: terrain matching, neural network, multitudinous features syncretize, the least energy

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