椭圆几何

利用像素阵列式摄像机（例如，CCD摄像机）的成像模型、椭圆几何模型，使用计算机图像仿真技术生成具有亚像素级精度的椭圆图像。

By employing the imaging model of a pixel array type of a camera , e.g. CCD camera , and on the basis of the geometric model of an ellipse , the simulated ellipse image with subpixel accuracy is successively generated by the computer image simulation technique .

非欧椭圆几何的若干度量问题

Some Metric Problems in Non-Euclidean Elliptic Geometries

通过应用瑞利里兹法研究了分层椭圆几何参数和缝线等效弹性系数对压缩屈曲载荷的影响。

The effects of geometry parameters of ellipse and stitching thread on buckling loads are investigated by Rayleigh Ritz energy method .

探讨了椭圆几何参数对最大换热量及临界热绝缘厚度的影响；查明了椭圆筒壁传热按圆筒壁处理的条件。

Besides , the paper discusses the maximum heat transfer and critical heat insulation thick . At last , the limits of the parameters in which the heat transfer passed through the wall of elliptic cylinder treated as that passed through a cylinder wall is found out .

根据椭圆的几何关系，研究了光谱相对孔径与椭圆的离心率和谱线探测角之间的关系，它随X射线波长增大而减小。

The relation between the spectrographic aperture ratio and elliptical eccentricity , spectral angle is also analyzed according to the elliptical geometry , it will decrease when the x-ray wavelength increases .

本文介绍了具有椭圆环几何处理能力的组合几何包CGT。

This paper introduces the combinatorial geometry package CGT with the capability of the torus geometric treatment .

对于椭圆的几何拟合，本文实现了一种严格的，稳定的非参算法&最小二乘正交几何椭圆拟合。

For the geometric fitting of ellipse , rigorous and robust nonparametric algorithm is carried out , which is called Least-squares orthogonal ellipse fitting .

第五章以椭圆的几何特性为立足点，研究了椭圆几何&建筑之间的动态关系，从标志性，二元对立，多样和统一四个方面分析了椭圆建筑的特点；

The fifth chapter investigates the dynamic relationship between geometry and architecture based on ellipse 's geometric character , and analyzes ellipse architecture 's characters in symbolism , dualism , diversity and unity these four facets .

凸区域上一类非线性椭圆算子的几何与分析

Geometry and Analysis for a Class of Nonlinear Elliptic Operater on Convex Domains

在组合测量、大型设备安装定位中具有广阔的应用前景。（5）研究了变焦视觉跟踪图像中基本几何特征&角点、直线和椭圆等基本几何特征的识别方法与算法。

The tracking measurement setup has good potential application prospects in combination measurements and large equipment assembly process . ( 5 ) The methods and algorithms of recognizing the basic geometric features , such corner , line , ellipse and etc. in zoom vision tracking images are studied .

针对具体的钢管直管对接焊缝图象，研究了其椭圆成象的几何关系，提出了焊缝图象区域模型，为进一步处理焊缝图象提供了理论依据。提出了一种模型基多分辨率图象自适应分割算法。

The geometrical relation of elliptic imaging is studied for welding seam image of the butt welds in straight tubes .

画图程序，让画出直线，椭圆，多边形等几何元素，结果可以保存并可读出。

Drawing program , so that draw lines , ellipses , polygons and other geometric elements , the results can be saved and can be read out .

对单椭圆聚光腔的几何结构参数进行了优化设计，分析了聚光效率及泵浦均匀度，并对聚光腔的反射层材料进行了选择；

The parameters of single ellipse cavity were optimizing designed , and the coupling efficiency along with the pump energy distribution was analyzed . We also chose the material of reflection layer of the pump cavity .

据此，可以把解算球面上大圆、椭圆和双曲线等几何问题，归结为解算平面上的直线、椭圆和双曲线问题，使实际应用大为简化。

Therefore , the geometrical problems of calculating great circle , ellipse and hyperbola of spherical surface could be come down to calculate straight line , ellipse and hyperbola of plane accordingly , which makes actual application be more simplification .

椭圆晶体谱仪的光学系统设计利用了椭圆聚焦几何理论。

Optical system design for spectrometer has been developed taking the advantage of ellipse focusing geometry theory .