摘要
研究采用多波束测深声呐与三维扫描声呐相结合,获取水下沉船姿态数据及附近海底地形点云数据的方法。通过实例阐述数据采集、数据处理过程的关键因素,并采用环境光遮蔽算法对点云数据进行了可视化渲染。结果表明,该种方式点云数据完整、沉船细节清晰,可为沉船清理作业中的风险评估和决策制定提供关键的技术支持。
A way of combining multi-beam sounding sonar with 3D scanning sonar was studied to obtain the at-titude data of underwater shipwrecks and point cloud data of seabed terrain. The key factors of data acquisition anddata processing were described through an example,and the point cloud data was visualized by ambient occlusionalgorithm. The results show that this method can provide integrated point cloud data and clear detail of shipwreck,which can support risk assessment and critical decision-making for planning and execution of wreck removal opera-tions.
出处
《水道港口》
2016年第5期569-572,共4页
Journal of Waterway and Harbor
基金
交通运输部2014年建设科技项目"大吨位沉船整体打捞探测
起浮技术及装备"(2014 328 204 050)
中央级公益性科研院所基本科研业务费专项资金项目"面向救助打捞的海上应急勘测技术研究"(TKS140222)
关键词
沉船姿态探测
多波束测深
三维扫描声呐
点云数据
环境光遮蔽算法
attitude detection of shipwrecks
multi-beam sounding
3D scanning sonar
point cloud data
ambient occlusion
