立体投影

This article used the truncation mark law to discuss the common quadratic surface on the coordinate plane projection, based on this gave by the surface encircles three-dimensional asks the law on the coordinate plane projection one kind, this kind asked method the superiority lay in does not draw the range of integration graph also to be able to determine it on the coordinate plane projection.

本文利用截痕法讨论了常见二次曲面的在坐标面上的投影，在此基础上给出由曲面所围立体在坐标面上的投影的一种求法，这种求法的优越性在于不画出积分区域图形也能确定它在坐标面上的投影。最后以实例说明这种求投影的方法在计算三重积分中的应用。

Using planar graph to express the three-dimensional objects, or a projection map to express the three-dimensional objects, must be consistent with the projection theory of descriptive geometry.

用平面图形来表达三维立体实物，或用一个投影图来表达三维立体实物，必须符合画法几何的投影理论要求。

The first section is descriptive geometry, including basic knowledge of cartography and projection, projections of point, beeline, plane and their interrelations, projection transformation, curve, curving plane, the projection of curving plane solids, line of section, line of intersection, section and segmentation, elevation projection, dimetric projection.

第一部分为画法几何：其中有制图基本知识，投影的基本知识，点、直线、平面的投影及它们之间的关系，投影变换，曲线、曲面及曲面立体的投影，截交线与相贯线，剖面图与断面图，标高投影，轴测投影等。

In this thesis, we propose a new semi-automatic system that is able to create interesting 3D effects from plain photographs. By directly projecting the ground plane without the use of camera parameters, we avoid the problem of creating images with wrong depth ratio and texture distortion.

本论文修改了还原真实场景比例的立体化方式，将影像中属於地面的部份，以原始大小直接投影至立体空间，这麼做出现了类似立体书或立体卡片的效果，同时也省去了设定相机参数的步骤，避免因不正确的参数设定导致错误的深度比例或材质贴图的扭曲变形。

Based on the model of linearcamera in the stereovision and the character of wandering in the virtual scene, this method can get a projection matrix by thecorrespondence of four points between image space and texture plane.

该方法以立体视觉中的线性摄像机模型为基础，针对虚拟场景漫游的特点及需要，利用透视投影中点的对应关系，通过图像空间与纹理平面上的四点对应，求得纹理校正的投影矩阵。

Background material for the course is briefly reviewed, including Miller Indices and Miller-Bravais Indices, metallic bonding and crystal structure, stereographic projections.

将对这个课程所需的背景资料做简要的回顾，包含Miller指标及Miller-Bravais指标、金属键结及晶体结构、立体投影图等。

Nowadays, the stereoscopic projection technology is able to create splendid visual effect and superrealism image through the innovation of combining technology and design. The visual implication feature and principle of the technology make the definition of reality and virtual illusion fuzzy and hard to distinguish.

如今，立体投影技术透过科技结合设计概念的创新呈现下，可创造出更令人惊艳的视觉传达效果，并呈现出具超现实的场域空间影像，因其视觉暗示因素之特性与原理，更加模糊了人们对於真实与虚拟的界定，亦分不清何为虚实真假。

The use of a good contact print is superior to that of an anaglyphic projection.

使用好的晒印像片比使用互补色立体投影还好。

Aiming at three-dimensional construction of point object,lease square-method is usually used in traditional method.

中文摘要：双目立体视觉研究利用二维投影图像恢复三维景物世界的问题，其中三维重构是立体视觉测量过程的主要组成部分之一，是从二维图像恢复三维景物的关键环节。

The parameters calibration is carried in the course of the transformation from objective scene to digital image .

双目立体视觉的两个摄像机得标定，首先需要先对每个摄像机分别标定，以求出它们的投影矩阵，然后求解相对定位问题，相对定位问题是指用场景点在两个图像平面上的投影来确定两个摄像机坐标系之间的关系。

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