Underwater Digital Terrain Model with GPS-aided High-resolution Profile-scan Sonar Images  

作　　者：周拥军 寇新建 

机构地区：[1]School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiaotong University

出　　处：《Journal of Shanghai Jiaotong university(Science)》2008年第2期233-238,共6页上海交通大学学报（英文版）

摘　　要：The whole procedures of underwater digital terrain model (DTM) were presented by building with the global positioning system (GPS) aided high-resolution profile-scan sonar images.The algorithm regards the digital image scanned in a cycle as the raw data.First the label rings are detected with the improved Hough transform (HT) method and followed by curve-fitting for accurate location;then the most probable window for each ping is detected with weighted neighborhood gray-level co-occurrence matrix;and finally the DTM is built by integrating the GPS data with sonar data for 3D visualization.The case of an underwater trench for immersed tube road tunnel is illustrated.The whole procedures of underwater digital terrain model （DTM） were presented by building with the global positioning system （GPS） aided high-resolution profile-scan sonar images. The algorithm regards the digital image scanned in a cycle as the raw data. First the label rings are detected with the improved Hough transform （HT） method and followed by curve-fitting for accurate location; then the most probable window for each ping is detected with weighted neighborhood gray-level co-occurrence matrix; and finally the DTM is built by integrating the GPS data with sonar data for 3D visualization. The case of an underwater trench for immersed tube road tunnel is illustrated.

关 键 词：digital terrain model high-resolution sonar Hough transform neighborhood gray-level co-occurrence matrix 

分 类 号：P229.1[天文地球—大地测量学与测量工程]