查询词典 model theory

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。

According to theory of the conjugate curves and the envelope curve,the corresponding mathematic model of workpiece-tooth-curve was established.

并根据共轭曲线及包络线理论建立对应工件齿廓曲线的数模型，由二者的数学模型建立完全接触面积的算法。

In this paper,using life annuity theory combining with State Department's 'the decision of establishing consolidated corporation employee pension system',we derive the actuarial model of measuring fund gap in the fundamental pension insurance.

根据1997年国务院《关于建立统一的企业职工基本养老保险制度的决定》文件，利用生存年金理论得到测算我国基本养老保险基金缺口的精算模型。

In this paper,using annuity theory and combining with State Department′s 'the decision of establishing consolidated corporation employee pension system ',the actuarial model of pension substitute rate with different contributing years to employees is derived

利用年金理论并结合1997年国务院《关于建立统一的企业职工基本养老保险制度的决定》文件，得到我国职工在不同缴费年限下基本养老保险替代率精算模型，并利用该模型对基本养老保险替代率进行模拟分析。

The "product line---demand---consumers" pyramid" model combining with Maslow"s Need Hierarchy Theory explains the dynamic relationship among the luxury brand"s core products, the main targeted consumers and their main demand. Firstly, competition, sales pressure, market development and other reasons make the core products and product lines growing, namely downward to the bottom of the pyramid; Secondly, with the product line downward to the bottom of the pyramid, the number of luxury consumers has been expanded; Thirdly, because of the exclusive consuming demand, consumers" requirements of conspicuousness and self-fulfillment for the luxury goods are upward to the top of the pyramid.

因此，本研究结合马斯洛需求层次理论，提出了"产品线—需求—消费者金字塔"模型，说明了奢侈品品牌的核心产品、主要目标消费者及其主要需求之间的动态关系：第一，由于竞争、销售压力和市场发展等方面的原因，使得核心产品、产品线有扩大的趋势，即向金字塔下方发展；第二，随着产品线向金字塔下方发展，奢侈品的消费者数量也随之扩大；第三，由于消费需求的排他性，消费者对奢侈品的炫耀性和自我实现性要求则是向金字塔上方发展的。

This paper explores those questions, suggesting a basis for the articulation of a legitimizing constitutionalist theory for states organized on a state-party model along certain lines.

本文将探讨这些问题，并提出一种理论基础——遵循一定的路线，如何使建立在"党国"模式之上的国家的宪政法制化。

This article puts forward the basic concept of the director s instruction model and its use in concrete teaching according to the constructionist s study theory.

文章根据建构主义的学习理论，提出了导演式教学模式的基本概念和在教学中的具体应用。

Based on the basic diffusion theory, the general model of the contaminant transport in the environment is presented.

然后从最基本的扩散理论入手，建立了污染物质在环境介质中传输的通用模型，再结合土壤这一特定的环境介质，对传输模型进一步深化，得出能准确地表达出污染物在各种土壤条件下的运移过程的数学方程，并给出了各种典型情况下的解析解。

In this paper, with the framework of non-equilibrium thermodynamic separation theory, a mathematical model of nonlinear chromatography is established according to the actual chromatography processes based on the three basic theorems, Lagrangian-Eulerian description, continuity axiom and local equilibrium assumption.

本文在梁恒等建立的非平衡热力学分离理论的框架下，以Lagrangian-Eulerian描述、连续性公理和局域平衡假设三大基本法则为基础，建立了一种制备色谱理论模型。

In first part,The Theory and Simulation on Reconstruction Algorithms,webuild a well-defined mathematical model for OCT,on which we prove more than 10theorems,analyze and answer a series of significant questions about OCTreconstruction,from existence, uniqueness,continuousness,stability to sampling,resolution,ill-posedness and accuracy.

在上篇重建算法的理论与实践中，我们将OCT抽象为基于n维Radon变换的数学模型，从而分析、讨论、回答了从存在性、唯一性、连续性、稳定件到采样条件、分辨能力以及病态特件和重建精度等一系列在理论和了OCT的重建理论体系。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失