期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：237
期号：3
页码：032049
DOI：10.1088/1755-1315/237/3/032049
出版社：IOP Publishing
摘要：Due to the limitations of existing fairway extraction methods that not take the width of the fairway into account, a method of fairway boundary extraction based on AIS data is proposed. Firstly, in order to express the density of AIS track points, the Voronoi diagram is constructed. Secondly, the density difference between both sides of the fairway is quantitatively analyzed, and the index of it is proposed. Finally, using the AIS track points that selected by the former index, the Delaunay irregular triangulation network is constructed, and then the boundary of the fairway can be extracted. The experimental results show that: using this method, the boundary of the fairway can be automatic extracted, which provides a new idea for the semantic analysis of AIS data.
