| 矢量曲线的特征点提取 |
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| 引用本文： | 王晏民.矢量曲线的特征点提取[J].测绘工程,2002,11(2):8-10. |
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| 作者姓名： | 王晏民 |
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| 作者单位： | 黑龙江工程学院测绘工程系,黑龙江哈尔滨,150008 |
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| 基金项目： | 黑龙江省自然科学基金，黑龙江省高校骨干教师基金，G01-08，，， |
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| 摘 要： | 讨论了矢量曲线数据压缩的问题，介绍了Douglas-Peucker法并指出了其优缺点。提出了一种改进的Douglas-Peucker法，使速度有很大提高。还提出了一种新的方法－逐点前进法。试验表明，新方法比前述方法的保真度要好，曲线起伏变化大时速度大大快于前者。
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| 关 键 词： | 地图综合 矢量曲线 数据压缩 特征点提取 保真度 GIS 地理信息系统 |
| 文章编号： | 1006-7949(2002)02-0008-03 |
Feature Point Selecting of Vector Curve |
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| WANG Yan-min.Feature Point Selecting of Vector Curve[J].Engineering of Surveying and Mapping,2002,11(2):8-10. |
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| Authors: | WANG Yan-min |
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| Abstract: | The problems of data reduction of vector curve are discussed.Douglas-Peucher Algorithm is introduced,its advantages and disadvantages are pointed out.A improved Douglas-Peucker algorithm is developed.It will greatly raise the running velocity.A new algorithm-point by point forward is pro-posed.It is indicated by experiment that the fidelity and velocity are greatly superior to others. |
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| Keywords: | map generalization vector curve data reduction feature point selecting |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
