摘要
在传统相关地形匹配的基础上 ,提出了一种基于Haar小波的多尺度地形匹配方法。这种方法用Haar小波对地形作多尺度分解 ,然后 ,利用分解后的HL和LH分量分别进行相关匹配 ,对匹配后的结果用Dempster Shafer证据理论进行融合 ,得到正确匹配结果。由于Haar小波分解后减少了数据量 ,保留了原始地形的主要几何特征 ,所以 。
On the basis of conventional TRECOM technology, a new TRECOM approach has been developed based on the Haar wavelet. The approach is as follows: firstly the terrain is decomposed by the multiresolution Haar wavelet. Secondly the correlation matching results are calculated by the decomposed results of HL and LH part, respectively. Thirdly, the matching result is fused by the algorithm of Dempster Shafer. Because the terrain is decomposed by the multiresolution Haar wavelet, the data is reduced, and the main geometry character of original terrain is preserved. Our method in calculation speed and matching precision is better than the conventional method.
出处
《电波科学学报》
EI
CSCD
2002年第3期240-244,共5页
Chinese Journal of Radio Science
基金
国防科技预研基金资助项目 (99J1.4 .4 .JW0 5 0 9)
