干涉合成孔径声纳中的水体区域检测  

Detection of water areas in interferometric synthetic aperture sonar processing

作　　者：秦晓东[1] 刘纪元[1] 

机构地区：[1]中国科学院声学研究所,北京100190

出　　处：《中国科技论文》2012年第7期563-566,共4页China Sciencepaper

基　　金：国家高技术研究发展计划(863计划)资助项目(2007AA091101)

摘　　要：干涉合成孔径声纳使用两幅接收阵列成像结果的相位差别得到高程信息。水体区域回波很弱,无法生成有效的干涉相位。为了提高干涉处理的精度和运算效率,提出了一种水体区域检测新方法。该方法包括阈值二值化、连通域标记、区域增长和阈值选取等步骤。湖试数据证明了该方法的可行性和对干涉处理的作用。In interferometric synthetic aperture sonar, the elevation information is derived from the phase difference between two images generated by two sepmte receiving arrays. The echoes from water areas are weak, and cannot generate meaningfial interference phase. In order to improve the quality and efficiency ofinteferometric synthetic aperture sonar processing, an approach to detect the water areas is proposed. The approach consists of binaryzafion and threshold selection, connected component labeling and region growing, etc. The results of lake trial show that the new approach is valid and useful.

关 键 词：干涉合成孔径声纳 水体区域 区域检测 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]