低空航拍图像中水上桥梁自动识别  

Automatic Recognition of Bridge Over River in Low Aerial Image

作　　者：俞海波[1] 王敬东[1] 秦洪 顾浩[1] 

机构地区：[1]南京航空航天大学自动化学院,南京210016 [2]信息系统工程重点实验室,南京210016 [3]中国电子科技集团公司第二十八研究所,南京210016

出　　处：《光电子技术》2015年第3期208-213,共6页Optoelectronic Technology

摘　　要：针对低空航拍图像中水上桥梁目标的自动识别技术,提出了一种水域特征与桥梁结构特征相结合的桥梁识别算法。首先对图像进行粗略分割,去除部分干扰区域;然后在分割图像的基础上进行Hough变换,提取桥梁相关直线;最后利用桥梁知识模型的指导,进行桥梁特征匹配,实现桥梁的精确提取。实验结果表明,该算法对低空航拍图像中的水上桥梁能够有效地加以识别。For solving the automatic recognition of bridge in low altitude aerial image,a method of bridge recognition based on the combination of water features and bridge structure feature is proposed.First,segmentation of the low altitude aerial image using Otsu algorithm was adopted to remove some interference region;then,the Hough transform to extract the bridge lines was made;finally,the bridge target was recognized with the guidance of bridge knowledge model and through the bridge feature It is experimentally shown that the bridge over rivers can be correctly recognized.

关 键 词：航拍图像 目标识别 HOUGH变换 特征匹配 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]