| 基于双线性插值的DEM误差传播的3维可视化模型 |
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| 引用本文： | 刘二永.基于双线性插值的DEM误差传播的3维可视化模型[J].测绘与空间地理信息,2013(12):1-3,7. |
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| 作者姓名： | 刘二永 |
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| 作者单位： | 福建农林大学资源与环境学院,福建福州350002 |
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| 基金项目： | 国家自然科学基金项目（51174287）;国家科技支撑计划子课题（2011BAB01806-06）资助 |
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| 摘 要： | 基于柯西-施瓦茨不等式,本文提出了一种新的误差3维可视化方法,用于描述DEM双线性插值的误差传播。该模型给DEM用户提供了围绕量测DEM的一个置信空间,真实的DEM将以大于预定的置信水平包含在这个置信空间里。该模型可以使DEM用户直观地了解DEM双线性插值的误差传播情况,从而使对DEM适用性的决策更为准确。
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| 关 键 词： | DEM 双线性插值 误差可视化 |
A Three Dimensional Visualization Model of Propagated Error of DEM Generated from Bi- Linear Interpolation |
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| Institution: | LIU Er - yong ( College of Resource and Environment, Fujian Agriculture and Forestry University, |
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| Abstract: | Based on the Cauchy - Schwarz inequality, this paper presents a new three dimensional visualization method in the descrip- tion of the propagated error of the DEM, interpolated by bi - linear method. The model provides the users of DEM with a range around the measured DEM, such that the ＂true＂ location of DEM is included by the confidence space with a probability larger than the prede- fined confidence level. The model can make DEM users to understand the propagated error of the DEM, interpolated by bi - linear method intuitionally, thus DEM users can make the decision of DEM applicability accurately. |
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| Keywords: | DEM bi - linear interpolation error visualization |
| 本文献已被 CNKI 维普 等数据库收录！ |
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