查询词典 projection method

On the basis of the properties of central projection and orthographic projection, the differences of different rectification approaches based on orthographic projection are explained, and it is suggested that oblique-plane-rectified photograph can produce orthographic representation of flat terrain cover; differential rectification of RS imagery based on DEM can produce orthographic representation of waved terrain cover; and true orthographic rectification based on digital ground-object model can produce orthographic representation of single objects on ground.

根据中心投影和正射投影的特点，从理论上说明了不同正射投影纠正方法之间存在的差异，认为：基于透视变换的像片倾斜纠正可生成水平地表覆被的正射投影表达；基于DEM的正射影像微分纠正可生成起伏地表覆被的正射投影表达；基于数字地物模型的真正射纠正可生成独立地物的正射投影表达。

According to the principle of the diameter of a circle corresponding to the right angle and the principle of short side for little angle in right triangle, projecting the initially-chosen point to the hyper-planes of the linear equation group in which every linear equation can be regarded as a hyper-plane and the projection points can be obtained. The initially-chosen point, and one arbitrary projection point, and the solution point are all on the surface of the relative hyper-geometry ball, therein-to, there is a projection point which is nearest to the solution point and it can be regarded as the next iterative initially-chosen point, so the solution problem of the linear equation group can be changed as an iterative problem of approaching the solution on the surface of a hyper-geometry ball.

根据直径对应的圆周角足直角以及直角三角形中短边对小角的原理进一步知道，当将初始点向线性方程组中各个方程所代表的超平面上投影得到投影点时，初始点和其任何一个投影点及方程组的解点都将位于一个相应的超球面上，其中必定存在一个投影点离问题解点的距离最短，即把该点作为下一次迭代的初始点，从而可将线性方程组求解的问题变成球面上逼近解点的迭代问题。

A projection slit is illuminated by a collimated laser beam.The projection slit is projected onto an object to be measured with grazing incidence through a lens.After being reflected by the object,the projection slit is imaged on a detection double slit through another lens.

准直激光束照明的投影狭缝由一个透镜以掠入射角度投影在被测物体上，狭缝投影经过被测物体表面的反射和另一个透镜的成像在探测双缝上形成投影狭缝像。

Map Projection ; Map Projection Transformation ; The Gauss Projection ; GIS

地图投影；地图投影变换；高斯投影；地理信息系统

Isometric projection , a species of orthographic projection, in which but a single plane of projection is used.

正规投影正交投影的一种，通常用在单一平面的投影上。

The simulation result shows the collection efficiency of TIR lens model is 67% when the angle of light is confined within 15°. And the uniformity on observation screen is improved in some degree. The optimal design of TIR lens further provides the development space of LED micro-projection display system.4 On the base of the theory research and the model simulation, four projection display systems which have LCOS as micro-display panel and which combine different optical devise for UHP and LED light source respectively are proposed in this dissertation. And the quality of projection display system is evaluated by thesimulation outcome.

模拟结果表明，优化后的TIR透镜可实现将LED大角度扩展光束中67％的光能压缩到15°范围以内，并使目标屏的照明均匀性得到一定的改善，这为LED光源微投影显示系统设计提供了新的发展空间。4在以上理论研究和模拟分析的基础上，将优化和改造得到的照明光学元件应用到微投影显示的照明系统设计中，分别采用UHP和LED光源，设计了四套单片式LCOS微投影显示系统模型，通过光线追迹模拟结果，对系统性能进行了评价分析和对比。

Map projection ; inverse transformation ; map projection system ; map projection parameters ; algorithm optimization ; error control

地图投影；反解变换；投影体系；投影参数；算法优化；误差控制

While matching, only the principal component directions corresponding to the rows of the same serial numbers in searching area are needed to be extracted for the computation of projection value so as to form the vectors of projection values. The distances between MM-vectors and the vectors formed by projection values are computed, and whether the two kinds of vectors are matchable should be in accordance to those distances.

在匹配时，只需抽取搜索区域中相同序号的列向相应的主元方向作投影运算，从而构成投影值向量，进而计算该向量与预处理中所得的最大最小值构成向量间的距离，从而根据距离的大小判断是否匹配。

Authors made use of shifted perspective, orthographic projection, approximations of axial or lateral projection, and approximations of parallel projection in illustrations depicting the detailed structures of machines and devices.

作者运用等同于移动透视、正投影、近似轴测投影和近似平行投影的画法和文字解说表达出机械、器物等的详细构造。

In the information era, there are many multimedia equipments in market, people can not use most of them freely. As a cost-effective system, SVS comes to undertake this role by providing professional large-screen display system and intelligent control system in overall. SVS insist to designing and producing large screen system, covering the products that based on projection technology, such as projector, projection TV, plasma, LCD TV, projection screen, video booth, Whiteboard, writing screen, big-screen mosaic system, matrix interface, video conferencing, central control system and other related accessories.Relying on a high level ideal of "creation and practical", with high-quality technology, market development and service team, SVS is in a fast lane of development. Since was built in 2003, has SVS achieved widespread attention and recognition in field, and established a good relationship with IT media, supporting manufacturers and industry research institutions, always thinking customers' demand and provide specific programs by Symposium, three-dimensional-type promotion, performance monitoring and analysis.

信息化时代，多媒体设备层出不穷，让人措手不及，无法真正去灵活运用，搭配出最佳适合用户需求的高性价比系统，SVS勇于承担这个角色，专业成就大屏幕显示系统与智能化控制系统整体方案设计及制造，SVS自始至终以大屏幕为主线，涵盖了以投影技术为基础或依托所开发、搭配或衍生的产品，包括投影机、背投电视、等离子、液晶电视、投影屏幕、视频展台、电子白板、书写屏、大屏幕拼接系统、矩阵接口、视频会议、中央控制系统及其他相关配件或零组件，公司依托一支具备"作风严禁、勇于创新、讲求实效"的高层次、高素质的技术开发、市场开拓及服务人才队伍，SVS正在惊人地快速发展，自创建以来，已经在业内取得了广泛的关注与认同，与IT媒体、配套生产商以及行业研究机构建立了良好的合作关系，始终以客户的需求为中心，帮助客户提供专项设计方案，专题讨论，立体式推广，效果监测和用户分析等各种服务，最大限度地方便客户，为客户提供解决方案，不断满足客户多样化、个性化、复合化的需要，帮助客户以最少的成本获取最大的收益。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。