查询词典 contour curve

Facing some difficult design which exists in the cam contour curve of indexing motion mechanism against domestic company presently,the conjugate contour curve was viewed as the idea of design and the motion animation was used as the method of design.

针对目前国内企业在间歇运动机构凸轮轮廓曲线设计中所遇到的困难，采用共轭曲线的设计思想和运动模拟仿真的设计思路，并通过案例，介绍了凸轮轮廓曲线的设计方法。

We get the continuous contour curve after using active contour model.

对于分割后获得的细胞核轮廓利用活动轮廓模型进行了优化，从而获得连续的细胞轮廓曲线。

An optical system with refraction and total internal reflection was proposed according to the luminous characteristic of LED and the law of energy conservation. The ordinary differential equations satisfying the spots on the contour curve of TIR refractive and reflective planes were established. The coordinates of points on profile curves were obtained by solving these ordinary differential equations using Runge-Kutta method. The profile curves were acquired by curve fitting of the coordinate spots with software UG, and then TIR model of the projector and data of the surface shape suitable for NC manufacture were obtained.

根据LED的发光特性以及能量守恒定律选择采用折射全反射光学系统，通过建立TIR折射面及全反射面轮廓曲线上的点所满足的常微分方程，利用RungeKutta求解常微分方程得到轮廓曲线上点的坐标，再在UG中对坐标点进行曲线拟合得到轮廓曲线，进而得到TIR模型及适合数控加工的面形数据。

Emphases are put on solving the problem of repeating searching extreme points in contours of Gauss curvature drawing,and the improved Bulirsch Stoer contour curve searching method is used in extreme points searching to speed up the searching efficiency.

提出了一种针对非均匀有理 B样条自由曲面的高斯曲率等值线的光顺检测方法，重点解决绘制高斯曲率等值线时出现的极值点的重复搜索问题，并将改进的Bulirsch-Stoer等值线搜索法用于极值搜索中，提高了搜索效率。

The maincontents of this thesis include:Firstly,by using inherent relationship between region integral and curve integral,designing the image transform operator,a novel snake model using both boundary andregion information was proposed,which more directly integrated the prior knowledgeincluding region information with the traditional deformable model,so that the abilityabout evolving contour curve was improved.

本论文将以严密的数学理论、可靠的物理原理和实际的应用背景为出发点，研究这一图像处理和分析的基本问题，并相应开展了以下几个方面的工作：首先，本论文利用区域积分与曲线积分之间转化的内在联系，通过设计相应的图像变换算子，提出了一种基于边缘与区域信息的图像可变形轮廓提取模型。

For the image with random field feature, the description language is probability distribution model, and the description length equals the negative base-two logarithm of the probability of the image data; For the region homogeneity properties of active contour, the description language is chosen as a sign gradient map, and the description length is the summation of sign gradient inside the active contour; For the active contour regularity, the description language is smoothness, and the corresponding description length is the length of active contour curve.

随机场图像的描述语言采用概率分布模型，描述长度是围道内外区域中图像数据概率的以2为底对数的负数；活动围道区域一致性的描述语言为有符号的梯度图，描述长度是围道内区域有符号梯度的总和；围道形态的描述语言采用平滑性，描述长度正比于围道的长度。

This paper introduces a method of adding a new popup menu item to the menu groups of AutoCAD, creating user interface, establishing macro code,designing and drawing the contour curve of plate cam at the designated point in AutoCAD based on AutoCAD VBA,providing a living example for designing and drawing the complex planar curve in AutoCAD.

利用AutoCADVBA向AutoCAD菜单栏添加新菜单项，创建图形用户界面，编制宏代码，并在AutoCAD中设计和定点绘制凸轮轮廓曲线，为在AutoCAD中设计和绘制复杂平面曲线提供了具体实例。

The contour curve is obtained with Sobel operator, and thus the angel of the contour curve of needlepoint image can be computed.

通过Sobel算子和曲线拟合得到输液针图象的轮廓曲线，并进一步计算出输液针图象的外轮廓角度。

This paper takes account of the several factors including the contour curve of cam,the accuracy of motion, structure size and the time of normal work of cam mechanism by discussing the relationship between the roller radius and contour curve ,the touch-stress between the roller and cam, the thickness of lubricant film.

以凸轮机构的凸轮轮廓曲线、运动的准确性以及结构尺寸和寿命为考虑因素，讨论了凸轮机构从动件滚子的半径与轮廓曲线、凸轮高副的接触应力以及润滑油膜厚度等的关系，提出了滚子半径的选择原则。

Firstly edge detection method for cross-sections is expatiated, and a B-spline active contour based on adaptive FEM is proposed to fit the digital contour curve.

首先对断层图像的边缘提取方法进行了论述，针对得到的截面轮廓数字曲线，提出了一种基于自适应B样条主动轮廓拟合方法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了