查询词典 planar point

The purpose of this thesis is to apply the planar theory technology to flexography for establishing the colorific model.

本文主要研究柔版印刷中三色网点复制呈色的平面规律，建立并验证三色柔印呈色平面模型，并通过多角度分析深入研究柔版印刷的平面呈色理论。

In the compound produced by the planar device, there are even SiC whiskers found with length longer than 1 micron and diameter less than 30 nanometers.

冲击合成的SiC产物晶粒细小，而且在平面冲击波合成产物中观察到长度超过1微米、直径小于30纳米的SiC晶须。

Another new spatial 3-RPS parallel pyramid manipulator mechanism is studied. The principal screws of this mechanism under three different configurations are identified by means of the conic section and the quadric degenerating theory, respectively. The planar conics representing the relations between the pitches of the output twists and the three linear inputs are described, and the three-dimensional distribution of the axes of all the twists with the same pitch is illustrated under each of the configurations.

研究了另一种新的空间三自由度3-RPS并联角台机构，分别用二次曲线和二次曲面分解法识别该机构在三种位形下的主螺旋，绘制了其在每种位形下的输出运动螺旋的节距与输入之间的平面图以及具有相同节距的所有运动螺旋轴线在每种位形下的空间分布的立体图。

However, because of lacking high efficiency and high precision for the measurement of craters on the conical surface rock, the traditional single row drilling experiment is carried out on planar rock.

由于缺乏对锥面岩石破碎坑的有效的、高精度的测量手段，所以传统的单齿圈试验都是针对平面岩样进行的。

On the issue of surface feature extraction, the reliable approaches to extracting planar, spherical, cylindrical and conical surface is tackled.

面特征提取部分探讨了从深度图象中可靠提取平面、球面、圆柱面和圆锥面特征的方法。

In order to recognize the 2D shapes, we proposed a set of perspective invariants of a pair of coplanar conics in this paper, we suggest a perspective invariant representation of general planar curve based on ellipse, and give an algorithm using the invariants and the representation to recognize 2D shapes.

为了实现二维形状的透视投影不变性识别，本文推导出了一种共面二次曲线对的透视投影不变量，提出了一种基于椭圆的平面曲线的透视不变性表示方法，并且给出了用该不变量和不变性表示方法实现二维形状识别的算法。

Chapter 1 briefs the relation between invariance and computer vision and summarizes the research and application of invariance in computer vision. Chapter 2 first derives the transformations of three camera models, then makes the correpondences between the models and three typical geometrical transformation groups by analysing the transformations respectively. The correspondences supply the theoretical basis for applying geometrical invariants to resolve the problems of computer vision. In Chapter 3, we describe the geometrical invariant theory and prove some geometrical invariants of coplanar points, lines or conics by algebraic method. In order to use the invariants of conic pairs to describe general 2D shapes, we discuss the perspectively invariant representation of planar curves using conies in detail. A system consisted of two TMS320C25 and based on moment invariants is introduced in Chapter 5. The system can recognize more than 30 different shapes of object model or more than 10 plane models with similar shape in real time.

第一章简述了不变性与计算机视觉的关系，以及计算机视觉中的不变性研究和应用概况；第二章推导了计算机视觉中常用三种投影模型的变换关系，通过对这三种变换关系的分析，分别建立了这三种投影模型和几何学中的三种变换群之间的一一对应关系，为几何不变性在计算机视觉中的应用提供了理论基础；在第三章中，我们介绍了几何不变性的理论，并且用代数方法证明了共面点、直线、二次曲线的几何不变量和射影不变量；为了把二次曲线的不变量用于一般二维形状描述，在第四章中我们详细地讨论了用二次曲线实现一般平面曲线的透视不变性表示的方法；第五章介绍了用两片TMS320C25构成的、基于不变矩形特征的运动目标实时识别系统。

The length of certain bond and the number of conjugate double-bond affected OWF〓 greatly, OWF〓 changed linearly with the change of bond length (for planar azobenzene derivatives and cyanine derivatives) and the change of conjugate double-bond number (for conjugate alkene,β-carotene and lycopene).

3键长和共轭双键数对OWF〓有较大的影响，OWF〓随键长（如平面型的偶氮苯衍生物、菁类和氧杂菁类等）和双键数（如共轭烯烃类、β—胡萝卜素和番茄红素等）的变化而线性变化。

The length of certain bond and the number of conjugate double-bond affected OWFπ-π greatly, OWFπ-π changed linearly with the change of bond length (for planar azobenzene derivatives and cyanine derivatives) and the change of conjugate double-bond number (for conjugate alkene, p-carotene and lycopene).

3键长和共轭双键数对OWF_有较大的影响，OWF_随键长(如平面型的偶氮苯衍生物、菁类和氧杂菁类等)和双键数(如共轭烯烃类、β—胡萝卜素和番茄红素等)的变化而线性变化。

Aximum intensity projection,curved planar reformation and volume rendering were used conjunctively to observe morphological changes of the coronary arteries,such as atherosclerotic plaques and compression.

B-MCA及邻近冠状动脉形态学的观察：采用多平面重组、曲面重组、容积再现多种后处理技术相结合观察MCA近端及远端粥样硬化的发生率。3。

Some of them were ligated to the plasmid vector pCR 2.1 andsequenced,respectively.

将所获DNA片段克隆到pCR2.1载体进行测序，并与基因组数据库进行同源性比较。

Thinking since Google owns Blogger, I would be able to escalate this issue to the support team.

自谷歌的思考拥有Blogger的，我将能够缓解这一问题的支持团队。