基于径向投影变换的快速地形匹配方法  

Fast terrain matching algorithm based on radial projection transform

作　　者：曹跃云[1] 徐洪波[1] 柳健[1] 

机构地区：[1]华中科技大学模式识别与人工智能研究所多谱信息处理技术国防重点实验室,湖北武汉430074

出　　处：《红外与激光工程》2006年第6期746-750,共5页Infrared and Laser Engineering

基　　金：武器装备预先研究基金资助项目(51404040405JW0518)

摘　　要：根据多波束声纳地形匹配导航中不同阶段对匹配性能的不同要求,提出了基于径向投影变换的快速地形匹配方法。基于径向投影变换的快速地形匹配方法利用图像径向投影变换将图像变成一维曲线,然后采用相位相关法搜索图像的匹配位置和旋转角度,由于径向投影变换将二维图像变换为一维曲线进行匹配,因此大大提高了匹配速度。In order to satisfy the different needs of submarine navigated performance in the different navigation steps, the fast terrain matching algorithm based on radial projection transform is presented. The main steps of the algorithm are as follows： Firstly, the image is projected to one dimension curve by the radial projection transform of the image. Secondly, the matching position and rotational angle in the image are searched by the phase correlation. Because searching two dimension image is transformed to searching one dimension curve by the radial projected transform, the matching speed is efficient.

关 键 词：潜艇导航 地形匹配 径向投影变换 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]