conicoid

conicoid

1. Compare and Analysis of GPS Height Fit by Polyhedral Function and Conicoid Function

GPS高程拟合中多面函数及二次曲面函数的比较与分析

2. -binding for the Java language) OpenGL tutorial-conicoid 18th class conicoid painting is a composite object method, which does not usually need a lot of the triangle.

NeHe)的OpenGL教程- 二次曲面 第十八课 二次曲面是一种画复合对象的方法，这种方法通常并不需要很多的三角形。

3. Conicoid n 1 Hypersurface and Their Properties for Euclidean N space R n

N维欧氏空间R~n上2次n-1维流形及性质

4. center conicoid

二次曲面

5. The reflection and refraction of light on the rotational conicoid are studied. The formulas and a series of conclusions on imaging are obtained.

从焦点和焦点参数出发，研究光在旋转二次曲面上的折射和反射.

6. Comparing with the conicoid fitting method (CFM)to converse GPS height, the accuracy of the transform result with the CF &NNM method canimprove 20 percent.

作者还对该方法的实质进行了解析，与二次曲面拟合法相比，利用CF&NNM法转换GPS高程，其转换结果精度大约可提高20%，具有推广价值。

7. Keywords optical parts;normal equidistance method;quadratic rotated conicoid;

光学零件;法线等距离线法;二次旋转曲面;

8. AUTOCOLLIMATIC TESTING OF CONVEX CONICOID BY USING A MENISCUS LENS

凸二次曲面的透镜式自准检验

9. The rotational conicoid lens formulas of the focal length, the optical power and the image are deriued correctly according to the image method one by one.

利用逐次成像法，正确导出了同一介质中旋转二次曲面透镜的焦距、光焦度和成像公式。

10. Keywords hyperboloid turning conicoid twist drill mathematical model point grinding grinding principle;

双曲面;二次回转曲面;麻花钻;数学模型;点磨削;刃磨原理;

11. The conicoid can be generated by the program.

可生成各种二次曲面、计算船舶静水力。

12. The conicoid model(CFM) is the best model for transforming GPS height in the engineering practice,but there is no proof in theory.

在工程实践中,二次曲面模型在GPS高程转换过程中为较优的模型,可以达到三四等水准的要求,但没有在理论上得到阐述。

13. A measure error which is approximated to a conicoid was discovered in the measurement of Linnik Interferometry System.

在应用林尼克结构干涉测量系统进行测量时,发现系统存在一个近似为二次曲面的测量误差。

14. Research of a solid with complicated conicoid surface's RP

复杂型面实体快速原型的研究

15. The closed mapping relationship between the 3 D position and attitude of a conicoid and its image contour is explicitly derived.

实验例证了此技术是快速、高效和鲁棒的。

16. Experimental results show that the subpixel localization precision of HFA can reach 0.25 pixel. It has greatly decreased computative cost under the comparisons with conicoid fitting algorithm and Gaussian fitting algorithm.

实验表明:与常用的高斯拟合或二次曲面拟合方法相比,双曲面拟合方法在定位精度上为0.25个像素,而计算量大为减少.

17. We use least squre method to form conicoid mathematic model and fit the point cloud which has been grouped by octree subdivision method.

应用最小二乘法建立二次曲面的数学模型，对于已用八叉树分组的点云数据实现隐函数拟合。

18. Abstract: The reflection and refraction of light on the rotational conicoid are studied. The formulas and a series of conclusions on imaging are obtained.

文摘:从焦点和焦点参数出发，研究光在旋转二次曲面上的折射和反射.

19. The Optical Power of the Rotational Conicoid Optical System

旋转二次曲面光学系统的光焦度

20. Approach to the Optical Center of the Rotational Conicoid and It's Thick Lens

旋转二次曲面及其厚透镜的光心探讨

21. Spherical Aberration Analysis of Refraction Imaging for the Rotational Conicoid

旋转二次曲面折射成像的球差分析

22. Accurate Formula and Application of Being Refracted and Forming Images on Rotational Conicoid

旋转二次曲面折射成像的精确公式及应用

23. A study of the image of the rotational conicoid lens

旋转二次曲面透镜的成像研究

24. The image theory on corrected spherical aberration rotational conicoid

消球差旋转二次曲面的成像理论

25. Secondly, the initial normal vector will be improved by conicoid least square.

然后,采用最小二乘进行二次曲面拟合进行修正。

26. The method is suitable for computer programming and its calculation results are accurate.It fully unifies the asphericity calculation for conicoid and high-order aspheric surface.

该方法适于计算机编程，计算结果准确，且可完全统一二次曲面和高次非球面的非球面度计算。

27. Normally,the conicoid fitting method (CBt) and the neural network method (NNM) are used forconverting a GPS height into a normal height. But, each of them has its own advantagesand disadvantages.

转换GPS高程通常使用二次曲面拟合法和神经网络方法，但这两种方法各有优缺点。

28. The conicoid fitting method (CFM) and the neural networks method (NNM) are used for this purpose, but each of them has its advantages and disadvantages.

转换GPS高程通常采用二次曲面拟合法(CFM)和神经网络方法(NNM),但这2种方法各有优缺点.