quadric

1. New Extensions of Quadric B é zier Curve with Multiple Shape Parameters
   带多形状参数的四次Bézier曲线的新扩展
2. In this paper, we make use of the properties of the umbilic to research circle Section question of quadric in3-dimensional euclidean space.
   文章利用脐点的性质研究了二次曲面的圆截口问题，并给出了与二次曲面交线为圆的圆截口的方程的一种求法。
3. Quadric velocity compensation method for high resolution stepping frequency pulse radar
   高分辨率步进频脉冲雷达二次速度补偿方法
4. The curve structure and projective structure of the normal quadric surface; The software of RE in data process, cure restructure are also discussed.
   常态二次曲面的曲线结构和射影结构阐明了在软件设计中有关数据处理和曲面重构的功能。
5. Abstract: A simple method of solving an orthogonal transformation with a primary transformation is presented by change quadric form into canonical form.
   文摘：给出了利用初等变换求一个正交变换化实二次型为标准形的简便方法。
6. Application of Moving Quadric Surface in GPS Height Fitting
   移动曲面法在GPS高程拟合中的应用
7. Analysis of OpenGL Texture Mapping Onto Quadric Surfaces and Its Application
   OpenGL二次曲面纹理映射技术分析与应用
8. The starting and shifting dynamics models for double clutch transmission ( DCT) are built, and linear quadric optimal control theory is used to study the engaging and disengaging laws of clutch.
   建立了双离合器式自动变速器起步、换挡动力学模型。利用线性二次型最优控制理论研究了离合器接合、分离规律。
9. On self-adaptive subdivision algorithm for triangular meshes based on quadric error metrics
   基于二次误差的三角网格自适应细分算法研究
10. Bifocal chord of a quadric Attenuation, Scattering, Modeling water surface, Light shafts, Caustics.
    二次曲面的两焦点弦衰减，散射，水面建模，光线束，焦散。
11. Study on Multiple Frequency CW Ranging Method Based Quadric Difference Frequency
    基于二次差频的多频连续波测距方法研究
12. Simplified Algorithm for Trigonometry Meshes with Attributes Based on Quadric Error Metric
    基于二次误差测度的带属性三角网格简化算法
13. Solution of conditional extremum of quadric form on hypersurface by using the matrix method
    二次型在超曲面上条件极值的矩阵解法
14. Patented Quadric lighting reflection, 120 degrees LED beam angle;
    专利二次反射照明，120度LED光束角；
15. In order to effectively combine the two schemes, uses quadric error matrix to transform related information between the two steps in the whole process.
    为了将两者有效结合，将二次误差矩阵应用在整个简化过程中，简洁地传递了两个过程中的相关信息。
16. An efficient extending algorithm for quadric rational B é zier curve
    一种二次有理Bézier曲线延拓的有效算法
17. A Quadric Error Metrics Based Feature Reserving Simplification Method
    基于二次误差测度的特征保持简化算法
18. A new method named quadric surface direct fitting based on normal vectors of measured data is proposed to overcome the current quadric surface fitting method's shortcomings.
    为了解决二次曲面拟合算法中因几何参数初值计算方法不精确而导致的求解效率低，甚至失败的问题，提出了基于表面法矢的二次曲面直接拟合算法。
19. The conventional quadric rate-distortion model was improved and a new one was introduced by incorporating the human visual system ( HVS) characteristics.
    算法对传统二次率失真模型进行了改进，并结合人眼的立体视觉特性，提出了新的码率控制策略。
20. Quadric error metrics for mesh simplification based on feature matrix
    网格简化中基于特征矩阵的二次误差测度算法
21. Based on study of relationship between the average quadric error and the surface curvature, a variable resolution surface reconstruction algorithm was proposed.
    在研究平均二次误差与曲面曲率关系的基础上，提出了变分辨率的曲面重建算法。
22. An algorithm of feature surface recognition based on quadric surface fitting and geometry property was presented.
    提出了基于二次曲面拟合误差分析和几何属性分析的特征曲面识别算法。
23. In this paper, the fifing method which stimulates the Geoid using quadric polynomial, BP network and RBF network are provided for the GPS height conversion.
    本文采用二次曲面拟合、BP网络和RBF网络进行了GPS高程转换，并在网络结构改进等方面作了分析。
24. A new method of completing the square with reverse order is presented by change quadric form into standard form.
    提出了一种新的将二次型化为标准型的配方法&逆序配方法。
25. Two dimensional sensor data processing based on quadric surface fitting theory
    基于二次曲面拟合的二维传感器数据处理技术研究
26. Computer Vision Method Based on Quadric Curves of Measuring Pipe Orifice
    基于双曲线的计算机视觉的管口尺寸测量
27. In this paper, the authors expounded covariance analysis with two correlated variables and solved it with quadric form.
    利用二次型解决了双协变量的方差分析方法。
28. We call this surface the stress quadric.
    我们称这个曲面为应力二次曲面。
29. Secondly, the optimal flow distribution scheme in which the quadric multiple regression equation is used as the objective function is determined by the quadratic programming.
    以这个二次多元回归方程为目标函数，用二次规划方法确定管网的管段流量分配最优方案；
30. In this paper, the author gives the formula of roots of a quadric equation over a field of2 k elements and presents the problem.
    利用一元二次方程的求根公式构造二元二次方程组的迭代算法，通过图解二元二次方程组的解来说明迭代算法在实践中的应用。

noun

1. a curve or surface whose equation (in Cartesian coordinates) is of the second degree

   Synonym:    quadric surface