基于Haar小波的海底地形匹配方法研究  

Terrain matching based on Haar wavelet transform in sea-bottom navigation

作　　者：曹跃云[1] 柳健[1] 

机构地区：[1]华中科技大学图像信息处理与智能控制教育部重点实验室

出　　处：《海军工程大学学报》2005年第6期62-65,71,共5页Journal of Naval University of Engineering

摘　　要：提出了一种基于地形的小波场特征的相关匹配的方法.在小波场的相关匹配技术中,由于小波的垂直分量和水平分量反映了图像的边缘等高频信息,所以分解后的小波特征场相关性小,有比较高的匹配精度;同时,由于数据量压缩,提高了匹配速度,适应于地形匹配的快速实现.The terrain matching approach based on wavelet transform features is presented. The approach is as follows： firstly the terrain is decomposed by the multi-resolution 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 multi-resolution Haar wavelet, the data is reduced, and the main geometry character of original terrain is preserved. The calculation speed and matching precision of this method is better than the conventional one.

关 键 词：潜艇导航 地形匹配 小波变换 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]