变相机

Based on projective geometry,the research works about 3D invariances extraction and application have been done in this thesis as following:(1) The basic theories and concepts in projective geometry are systematically summarized. It includes:the camera models of perspective imaging,projective collineation,cross ratio,a simple compare about invariance among some geometry transformations,fundamental matrix,epipolar and epipolar line in epipolar geometry,and so on.

基于射影几何理论，论文围绕3D不变特征的提取和应用进行了如下的研究工作：(1)系统总结了射影几何中的若干基础概念，包括：透视成像的相机模型、射影对应、交比不变量、基于不同几何变换下的不变量的简单对比、对极几何中的基础矩阵、对极点、对极线等。

Based on projective geometry, the research works about 3D invariance's extractionand application have been done in this thesis as following:(1) The basic theories andconcepts in projective geometry are systematically summarized. It includes: the cameramodels of perspective imaging, projective collineation, cross ratio, a simple compare aboutinvariance among some geometry transformations, fundamental matrix, epipolarand epipolar line in epipolar geometry, and so on.

基于射影几何理论，论文围绕3D不变特征的提取和应用进行了如下的研究工作：(1)系统总结了射影几何中的若干基础概念，包括：透视成像的相机模型、射影对应、交比不变量、基于不同几何变换下的不变量的简单对比、对极几何中的基础矩阵、对极点、对极线等。

Nowadays, Ms Warner thinks, people have become accustomed to a kind of permanent disembodiment, thanks to the ubiquity of digital representations of themselves, via digital cameras and CCTV monitors (and, though she does not mention it, internet video).

Ms Warner认为由于数码相机和电视摄像设备的广泛使用(网络摄像头虽然她并未提到，但其影响力我们可想而知)，人类数字化了的形象变得随处可见。人们已经习惯了长期与现实脱离。在书中她还精彩的写道

This is a doddle to control its well designed on screen menu .

这款相机具备菜单，其设计使操作变得相当简单。

This is a doddle to control with its well designed on screen menu .

这款相机具备显示屏菜单，其设计使操作变得相当简单。

Obeying to the tendencies of mode elder from the new product, the model cyber-shot DSC-T100, obtained 3-inch LCD- display 5-fold zoom lens and already become traditional for the flag officer of series.

以服从倾向的老模式，由新产品，该型号数码相机dsc - t100推杆，获得了3英寸液晶显示器的5倍变焦镜头，并已成为一种传统，为旗官系列。

According to what the writer has known in the market on DC,the change of focal distance is a very important factor in quality of camera ,and which decides the price of the DC.

根据笔者在DC市场上了解，变焦倍数大小是决定数码相机好坏的十分重要的因素，变焦倍数的大小同样决定数码相机的价格，国产相机技术落后，在市场上几乎找不到有光学变焦功能的国产DC。

With the constant development of manufacture technics of the CMOS image sensor, the resolution and frame frequency improve constantly too, which makes the rate of communication between camera and frame grabber become more important.

摘要随着CMOS图像传感器制造工艺的不断提高，数字相机的分辨率和帧频也不断提高，这使得相机和图像采集卡之间的通信速率变的异常重要。

My DC only has 3X optical zoom and this is the result of the zoomed in view of a portion of the aspen groves. Look carefully and you will see a bunch of aspens have already dropped all of their leaves

我的数位相机只有3倍光学变焦，这是白杨树丛部份地区变焦后的结果，仔细看，你会看到一群的白杨树丛已经掉光叶子了。

DigiCamReview digicamreview : This is a very good digital camera, a definite improvement over the older Panasonic FZ series digital cameras - with a 6 megapixel sensor, a high quality Leica 12x optical zoom lens, and a 2.5 screen - albeit with a low resolution.

这是一个非常好的数码相机，有一定的改善，较旧的松下FZ系列数码相机-一个6万像素的传感器，高品质的徕卡1 2倍光学变焦， 2 。5屏幕-尽管与分辨率低的。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。