Beta Splines Interpolation for DEM's

机译：用于DEm的Beta splines插值

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The interpolators used for the densification of Digital Elevation Models normallydo not take into account additional information known to the operator, like rivers, lakes (flat areas), or mountain ridges. They interpolate based on the control points only. The Beta-splines curves, on the other hand, have properties that enable the operator to modify the bias and the tension for each cell by assigning values to the parameters beta 1 and beta 2. Thus, it is possible to force the resulting three dimensional surface to acquire a desirable shape. The disadvantage is the relatively large amount of extra calculations, but with the now available faster, and cheaper microcomputers, this disadvantage can be overcome. This work tests the use of Beta-splines interpolators for DEM's running on an IBM-PC-like environment.

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Nery, C. E.; Vieiradias, L. A.;
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年度 1990
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总页数 13
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Bias; Elevation; Interpolation; Mathematical models; Spline functions; Microcomputers; Shapes; Densification; Ground based control; Lakes; Mountains; Remote sensing; Rivers;

机译：偏差;高程;插值;数学模型;样条函数;微型计算机;形状;致密化;地基控制;湖泊;山脉;遥感;河流;

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机译：基数插值和样条函数V.基数Hermite插值的B样条

Beta Splines Interpolation for DEM's

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