Two projective line pencils take shape curve of seeond order,which can help ua to determine all kinds of type of curve of second order what is in two concurrent affine planes.

對(duì)二射影對(duì)應(yīng)線束形成二階曲線的圖形分析黄色网站在线可免费播放国产的，可以幫助我們用作圖法確定共面的二仿射平面場(chǎng)對(duì)應(yīng)線束形成的二階曲類

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.

第一章簡(jiǎn)述了不變性與計(jì)算機(jī)視覺的關(guān)系，以及計(jì)算機(jī)視覺中的不變性研究和應(yīng)用概況午夜理论在线；第二章推導(dǎo)了計(jì)算機(jī)視覺中常用三種投影模型的變換關(guān)系青青国产香蕉依人在线观看，通過對(duì)這三種變換關(guān)系的分析，分別建立了這三種投影模型和幾何學(xué)中的三種變換群之間的一一對(duì)應(yīng)關(guān)系，為幾何不變性在計(jì)算機(jī)視覺中的應(yīng)用提供了理論基礎(chǔ)最新黄色免费网站；在第三章中欧美曰人人操人人干，我們介紹了幾何不變性的理論，并且用代數(shù)方法證明了共面點(diǎn)国产精品久久久久精品三一级、直線国产av福利第一精品、二次曲線的幾何不變量和射影不變量；為了把二次曲線的不變量用于一般二維形狀描述看免费人伦视频网站，在第四章中我們?cè)敿?xì)地討論了用二次曲線實(shí)現(xiàn)一般平面曲線的透視不變性表示的方法久久婷婷五月综合国产；第五章介紹了用兩片TMS320C25構(gòu)成的、基于不變矩形特征的運(yùn)動(dòng)目標(biāo)實(shí)時(shí)識(shí)別系統(tǒng)人人摸人人操人人搞不卡不断。

They are ①cubic plane curve constituted with projective pencil of lines and line eonic

進(jìn)而證明三個(gè)定理：①一次線束和其射影對(duì)應(yīng)的二次線束国产精品视频网站大全，所對(duì)應(yīng)直線交點(diǎn)的軌跡為三次平面曲線

Based on the important idea of duality between plane and point geometries,two direct explicit methods of computer-aided design for developable surface s were proposed,the developable surface s were represented using control planes with appropriate basis functions.

為了克服傳統(tǒng)方法在可展曲面設(shè)計(jì)上的缺陷，方便地解決工程中經(jīng)常遇到的可展曲面位置和形狀難以調(diào)整和控制的問題黄色视频亚洲免费电影，基于3D射影空間中點(diǎn)和平面間的對(duì)偶性這一重要思想人人操人人干人人射人人爱人操，提出了兩種直接、簡(jiǎn)單的可展曲面設(shè)計(jì)方法人妻少妇一级大黄片视频在线无码免费看。

Experimental results show that the invariants not only have projective invariance but also have high stability and discriminability.

這組不變量不僅具有射影不變性女人內射色人人在线，而且具有較好的穩(wěn)定性和可分辨性，可以有效地識(shí)別平面多邊形欧美日韩特级婬片视频。

A simulation model of diffraction on Focal Plane Array imaging is established based on Fraunhofer diffraction algorithm. The effect of diffraction between two units on FPA in different distance is cal-culated by using Matlab.

采用夫朗和費(fèi)衍射計(jì)算公式一区二区美女脱黑色丝袜视频，建立了紅外焦平面陣列成像衍射仿真模型，并用Matlab軟件對(duì)不同距離探測(cè)像元之間的衍射影響進(jìn)行了仿真日本h视频。

It is natural to ask whether arrangements of linear varieties of different dimension in the projective space may be given with a similar axioms setting.

經(jīng)典擬陣研究的是超平面在射影空間放置的公理體系日韩特黄Av毛片免费播放。

Based on definitions and propositions and examples,it is first proposed the method of undetermined coefficients for normal quadratic curve equations.

0引言由二次曲線的射影定義可知，平面上任五個(gè)不同的點(diǎn)国产偸第一页，其中沒有四點(diǎn)共線国产女人A片免费视频，則過此五點(diǎn)唯一確定一條二次曲線。

A new kind of method for recognition of planar object is presented based on steerable filters.

本文提出一種基于可調(diào)濾波器的平面物體射影不變性識(shí)別方法欧美真人操逼免费大片。

From projective geometry aspect,this paper applies the vector operation characteristics of homogeneous coordinate to the intersection simulation.

從射影幾何的角度美女操逼特级黄片，提出了一種滅點(diǎn)計(jì)算方法，即將齊次坐標(biāo)的向量運(yùn)算特性應(yīng)用到交點(diǎn)擬合中免费av在线播放网址，利用最小二乘法整體平差高清无码巨乳人妻，較精確地提取空間平行線在平面透視圖中的交點(diǎn)。