海底声学探测数据综合可视化

发布时间：2018-03-09 20:50

本文选题：海底声学探测　切入点：纹理缓冲区　出处：《国家海洋局第一海洋研究所》2015年硕士论文　论文类型：学位论文

【摘要】：我国是一个滨海大国,拥有丰富的海洋资源。随着国家海洋强国战略的推进以及海底声学探测技术的飞速发展,海洋管理、科研和生产单位获得了大量的海底声学探测成果数据,但这些数据缺乏直观、形象的表达。有效的表达这些数据,能为科学研究和工程实践提供极大的便利。本文面向海底声学探测,研究了三维可视化技术,实现了海底声学探测成果数据综合可视化系统。进行的开拓性和探索性工作如下:1.提出利用GPU的纹理缓冲区解决侧扫声呐影像和多波束测深数据分辨率不一致引起的纹理贴图问题。该方法使显存每次加载大量的数据,避免了数据在内存和显存中反复传输带来的延迟。2.研究了沉积、侵蚀现象的地质体建模。基于似三棱柱,提出了沉积、侵蚀地层的判别方法以及四面体剖分方法,利用稀疏的地层解译数据构建三维地质体模型。3.实现了海底声学探测成果数据三维综合可视化系统。该系统能够在同一视图下综合显示多波束测深数据、侧扫声呐影像和浅地层剖面数据。基于本文研究成果开发的海底声学探测数据综合可视化系统在海底稳定性评价中得到了应用,实践证明该系统能满足数据综合可视化的需求。
[Abstract]:China is a coastal country with abundant marine resources. With the development of the strategy of national ocean power and the rapid development of seabed acoustic detection technology, ocean management, Scientific research and production units have obtained a large amount of underwater acoustic survey data, but these data are not directly and vividly expressed. It can provide great convenience for scientific research and engineering practice. A comprehensive visualization system for underwater acoustic exploration data is implemented. The pioneering and exploratory work is as follows: 1. A method of using GPU texture buffer to solve the problem of inconsistent resolution between sidescan sonar images and multi-beam bathymetric data is proposed. This method enables the display memory to load a large amount of data at a time. The delay caused by the repeated transmission of data in memory and display memory is avoided. The geological modeling of sedimentation and erosion is studied. Based on the triangular prism, a method of distinguishing sedimentary and erosive strata and a method of tetrahedron division are proposed. A 3D geological model .3.Using sparse stratigraphic interpretation data, a 3D integrated visualization system for underwater acoustic exploration data is implemented. The system can display multi-beam bathymetric data in the same view. Based on the research results of this paper, the integrated visualization system for underwater acoustic detection data has been applied to the evaluation of submarine stability. The practice shows that the system can meet the needs of comprehensive visualization of data.
【学位授予单位】：国家海洋局第一海洋研究所
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P715.5;TP391.41

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