| 顾及光滑拟合精度的地形曲线采样点布设规则研究 |
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| 引用本文： | 李伟涛,王春,李鹏,方美娇.顾及光滑拟合精度的地形曲线采样点布设规则研究[J].资源开发与市场,2011,27(10). |
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| 作者姓名： | 李伟涛 王春 李鹏 方美娇 |
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| 作者单位： | 1. 滁州学院国土信息工程系,安徽滁州,239012
2. 滁州学院国土信息工程系,安徽滁州239012;南京师范大学虚拟地理环境教育部重点实验室,江苏南京210046 |
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| 基金项目： | 安徽教育厅自然科学基金重点项目(编号:KJ2010A250); 安徽省高等学校省级优秀青年人才基金项目(编号:2011SQRL124) |
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| 摘 要： | 以加权平均抛物线拟合法为例,研究了顾及后期地形曲线光滑模型的采样点布设规则的确定问题.研究表明,对需要光滑拟合处理的地形曲线,除了传统的适当增加冗余采样点(采集质量检测点)外,还需要依据后期的光滑拟合模型,合理规划这些检测点的布点位置,才能有效保障地形曲线的科学采样与高保真重构.
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| 关 键 词： | 地形曲线 曲线拟合 采样 布点规则 |
Sampling Rules of Topographic Feature Lines Considering Shape and Fitting Accuracy |
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| LI Wei-tao,WANG Chun,LI Peng,FANG Mei-jiao.Sampling Rules of Topographic Feature Lines Considering Shape and Fitting Accuracy[J].Resource Development & Market,2011,27(10). |
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| Authors: | LI Wei-tao WANG Chun LI Peng FANG Mei-jiao |
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| Abstract: | This essay took fitting method of weighted average parabola as an example to study the confirmation of the rule of laying out sampling points considering smooth terrain curve model in late.The studies showed that in order to fitting the terrain curve smoothly,besides based on the tradition way increasing redundant sampling points(acquisition quality control point)appropriately,we also need according the smooth fitting model based on the late,to plan the point location of these test points.Then we could obse... |
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| Keywords: | terrain curve curve fitting sampling rule of laying out sampling points |
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