查询词典 geometry

Today, there are many commercial CAD development platforms, such as CV-DORS, ACIS and DESIGNBASE. But these products all lay emphasis on geometry modelling.

面向对象的CAD开发环境则是从产品建模的角度出发，其中心思想是在开发环境的核心完成设计信息的管理，并提供应用系统的开发界面。

Successful design of adhesively bonded joints requires an understanding of the mechanics of the joints, knowledge of the geometry and materials of the parts to be joined, the service loads, the environmental conditions and the requirements that exist for inspection of the finished joint.

成功的粘合接头设计需要了解接头的力学知识、几何知识、被粘接部分所用材料的知识、服务加载、环境条件和检查完成的接头存在的要求。

Linear CCD Push-broom Image; Frame Perspective Image; the Geometry Model of Sensors; Perspective Projection; Parallel Projection; Affine Transformation; the Rational Function Model; Epipolarity; Image Matching; the Extraction of Building

工程科技II，工业通用技术及设备，工业通用技术与设备线阵CCD推扫式影像；框幅式中心投影影像；传感器模型；透视投影；平行投影；仿射变换；有理函数模型；核线模型；影像匹配；建筑物提取

A method for image matching in stereo vision is proposed in this paper,which uses epipolar geometry and affine transformation comprehensively.

1引言图像特征点匹配是计算机视觉和摄影测量领域重要的研究课题，匹配的精度及自动化程度会对后续的操作带来直接的影响。

Projective and affine geometry are covered in various ways.

Projective和affine 几何学覆盖各种各样的方式。

This method utilizes the invariant properties of affine geometry to calculate the affine invariant, which has a more fast process speed.

该方法利用仿射几何中的特征区域面积比的不变性质构造仿射不变量，在处理速度上具有较为明显的优势。

Firstly, we calculate the Lie point symmetry of 1+2-dimensional nonlinear evolution equation:Which arises from the motion of plane curves in affine geometry.

我们首先计算了来自射影几何的平面曲线运动的非线性发展方程：所容许的李点对称群。

Was systematicly introduced to the field of image processing, and formed a relatively integrated theory system combined with other mathematic tools such as mathematic morphology and affine geometry. The level set methods proposed by S.

但直到九十年代才比较系统地将偏微分方程引入图像处理领域，结合其他一些数学工具如数学形态学和仿射几何等，形成了比较完整的理论体系。

At last,we use these feature regions to construct affine invariant s,based on affine geometry invariant property.

利用仿射区域划分获取一组扩展质心集合作为图像特征点集；求解特征点集的凸包，根据扩展质心的性质将凸包顶点均匀组合成若干特征区域；利用仿射几何性质构造了有效的仿射不变量。

Some important properties of affine geometry are analyzed firstly. Then two new conceptions called Extended Centroid and Affine Region Cutting are introduced.

大量实验证明，EC-ARC方法具有计算速度快，所提取的特征量稳定性高等特点，特征量对噪声干扰、照度变化和部分遮挡等具有良好的适应性。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"