介绍

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。

Chapter 2, Neural network method for constrained optimization problems.

在这一章中，我们简单介绍了神经网络和支持向量机的发展历史及研究现状，并对论文的主要结果给以简单介绍。

This paper includes four chapters,the first part is an introduction,the second part is concerned with the state of construct and improvement about the predator-prey sys-tem,the third part is concerned with the state of research about the predator-prey system. Some new directions of predator-prey system are introduced in brief in the fourth part.

本文共分四部分：第一部分是引言；第二部分介绍了捕食者-食饵系统的建立和发展现状；第三部分系统的阐述了捕食者-食饵系统的研究情况；第四部介绍了捕食系统的一些其它的研究方向。

The text introduces the probability of random events and issues of counter-examples; discrete random variables related to the distribution and continuous random variable distribution of counter-examples; independence and related issues in the Phase capacitive on the counter-examples; number of characteristics of the random variable The counter-examples of; parameters estimates and assumptions in the anti-testing case of problems.

该文主要介绍了随机事件及其概率问题中的反例；有关离散型随机变量分布和连续型随机变量分布中的反例问题；独立性与相关性相容性问题中的反例介绍；有关随机变量数字特征的反例探讨；有关参数估计与假设检验中的反例问题。

In this paper, the application of neural networks for industrial contrail control systems is introduced and the problem of building neural network model of the nonlinear control objects is described.

介绍了神经网络在工业控制系统中的应用；论述了建立非线性被控对象的神经网络模型问题；介绍了神经网络控制的主要方案，这些方案可用于过程控制和电气传动控制系统。

You can use this product to develop and validate digital signal processing and control designs from concept through code.

本书详细地介绍了CCS中各种开发工具的使用，特别是对DSP／BIOS的应用做了较为详细的介绍。

Let me introduce you to John Smith I'd like to introduce you to Mary Copper.

我把你介绍给约翰。史密斯。我想把你介绍给玛丽。

The propagation techniques and applications in garden of more than ten common perennial flowers in Northeast China were summarized such as Phlox subulata, Phlox paniculata, Chrysanthemum morifolium, Aster novi-belgii, Dianthus plumarius, Coreopsis, Lythrum salicaria, Hosta plantaginea, Sedum and Iris.

介绍了丛生福禄考、圆锥福禄考、地被菊、荷兰菊、常夏石竹、金鸡菊、千屈菜、玉簪、景天、鸢尾等东北地区10余种常见宿根花卉的繁殖技术，并对其在园林中的应用做了简要介绍。

The background of fake-guard line is analyzed from five aspects, as the market segmentation, the market capacity, the market character, the fake-guard technology and the market competetion;the background of Tsinghua Touch Stone Company is introduced from the following respects: the basic condition of the company, the company mission, the fake-guard technology and the corporational culture.

文章第一部分介绍了整个防伪行业的背景知识以及试金石公司的背景材料，在防伪行业背景方面具体从行业的市场分类、市场容量、市场特点、防伪技术及市场竞争力五个方面进行了分析；在试金石公司的背景资料方面分别介绍了企业的基本情况、发展宗旨、产品技术、企业文化。

Thebackground of fake-guard line is analyzed from five aspects, as the marketsegmentation, the market capacity, the market character, the fake-guard technologyand the market competetion; the background of Tsinghua Touch Stone Company isintroduced from the following respects: the basic condition of the company, thecompany mission, the fake-guard technology and the corporational culture.

文章第一部分介绍了整个防伪行业的背景知识以及试金石公司的背景材料，在防伪行业背景方面具体从行业的市场分类、市场容量、市场特点、防伪技术及市场竞争力五个方面进行了分析；在试金石公司的背景资料方面分别介绍了企业的基本情况、发展宗旨、产品技术、企业文化。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷