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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Jing Yu Gang Chen Xiao Zhang Wenlong Chen Yingxia Pu |
| Copyright Year | 2013 |
| Description | Author affiliation: Dept. of Geographic Inf. Sci., Nanjing Univ., Nanjing, China (Jing Yu; Gang Chen; Xiao Zhang; Wenlong Chen; Yingxia Pu) |
| Abstract | The simplifying natural shoreline of vector data into direction-line is the basis of delineation of baselines of the territorial sea. Using classical algorithms of vector data compression, such as the Douglas-Peucker algorithm, to simplify the natural shoreline into direction-line, ignores the special requirements of a guarantee of national marine interests. To solve this problem, this paper proposed an improved Douglas-Peucker algorithm. Firstly choose the convex points of the natural shoreline as an alternative set of points; then filter segment points from convex points based on angle and distance; finally, divide the data into several parts in order to perform the Douglas-Peucker algorithm, and control the threshold of every part to effectively select feature points and protect national maritime interests. This paper uses ArcGIS 10.0, Visual Studio platform, and C# language to carry out the algorithm design, and choose a local coastline of Jiangsu province to conduct experiment. The results show that, compared with the Douglas-Peucker algorithm, the improved Douglas-Peucker algorithm improves the area ratio by 0.19%(0.17%-0.20%), and compression rate of coordinate points by 13.22% (9.48%-16.95%), and the accuracy of curve simplification also improved. |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 658176 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781467362283 |
| ISSN | 2161024X |
| DOI | 10.1109/Geoinformatics.2013.6626177 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-06-20 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Algorithm design and analysis Information science Accuracy Natural shoreline Heuristic algorithms Line simplification Software algorithms Direction-line Data compression Douglas-Peucker algorithm Vectors Convex points |
| Content Type | Text |
| Resource Type | Article |
| Subject | Geography, Planning and Development Computer Networks and Communications Information Systems Electrical and Electronic Engineering Computer Vision and Pattern Recognition Software |
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