1) error metric
误差度量
1.
To investigate real time rendering of terrain surface, improve the speed of rendering and the fidelity of simplification, the algorithm taking the distance from vertex to average plane as the error metric and progressive meshes based dynamic simplification was used, which provided view dependent simplification of the model.
采用点到平均平面的误差度量和基于渐进网格的动态简化方法 ,使模型简化可随视点参数而动态变化 。
2.
Edge contraction algorithm based on quadric error metric needs large computation quantity on high-degree vertices and con-tracting the edges adjacent to this kind of vertices often make some key points to move so as to lose some important features.
针对基于二次误差度量的边收缩算法在计算大度顶点误差度量时计算量大,且收缩该类顶点关联边时易使关键点发生偏移而引起模型变动过大、简化不够准确的问题,提出了基于顶点度的模型简化算法。
3.
The error metrics are summarized at first.
首先介绍误差度量准则,然后对简化算法根据基本简化机制进行分类介绍。
2) error metrics
误差度量
1.
The algorithm uses edge collapse and error metrics based on squared distances from vertex to associated lines.
算法采用边折叠为基本操作 ,以点到相关直线的距离的平方为误差度量 。
3) measurement error
度量误差
1.
Effect of measurement errors on volume model and parameter estimation;
度量误差对材积模型的影响及参数估计研究
2.
Parameter estimate of the whole stand model with measurement error;
带度量误差的全林整体模型参数估计研究
3.
Based on the whole stand model of Daqingshan, using simulation method, the impact of measurement error of number of trees per hectare, average diameter, dominant height, average height and form height on the whole stand model were studied.
这种误差不仅是观测误差,往往也包含抽样误差,甚至模型误差等,这些统称为度量误差。
4) Errors-in-Variables
度量误差
1.
Serial Correlation Test and Empirical Likelihood in Semi-parametric Varying-coefficient Partially Linear Errors-in-variables Models;
半参数变系数部分线性度量误差模型中的序列相关检验和经验似然
5) measurement error
量度误差
6) length-measuring error
长度测量误差
1.
This Paper analyses the factors that cause the length-measuring errors of the Products;gives the necessary data.
产品长度测量误差产生的客观因素,主要是由于量具测头形状、测力和接触形式、工件支承位置、量具设计原则的影响。
补充资料:可公度量和不可公度量
可公度量和不可公度量
ommensulble and incommensuable magnitudes (quantities)
可公度t和不可公度t【~e璐u由lea目in~men-su.ble magultodes(quanti柱es);“洲口Mel娜M毗“”“”-113Mep目M曰e肠eJ皿,一皿曰』 如果两个同类量(例如两个长度或两个面积)具有或不具有公度(common measure,即另一个同类量,所考虑的两个量都是这个量的整数倍),则相应地称这两个量为可公度量或不可公度量.正方形的边长和对角线,或圆的面积和丫的半径的平方,都是不可公度量的例尹.如果两个量是可公度的,则‘l艺们的比是有理数;相反,不可公度量忿比是无理数、
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条