查询词典 world coordinate

The system gets two image of one object with two CCD, thus obtains depth from two CCD"s parallax. After investigating the operation spot and discussing with surgeons we use LED as markers, and get the marker"s 3-D position with a non-contact optics orientation method. After calibrating the CCD, processing the image, the system can figure out marker"s areal coordinates, get marker"s 3-D coordinate in dummy world coordinate system, thereby obtain instruments 3-D position and orientation. After the coordinate transformation and a series of orientation calculation, operation navigation comes true.

运用两个摄像机对同一目标从不同位置成像，进而从视差中恢复距离；通过对手术现场的仔细了解与手术医师的反复商榷，使用LED作为标志点，利用非接触式光学定位方法提取空间点位置信息：通过对摄像机的标定、图像处理及目标点重心的计算，求出空间点在虚拟世界坐标系下的三维坐标，从而确定了手术器械等的空间位姿，通过空间坐标转换及一系列定位计算，完成了手术导航实验系统。

It firstly means the exploration of the characteristic of nation literary searching the coordinate axis of development of world literary for our own nation.

同时，编者应将全人类的文学发展视为不同民族、国家的文学不断交流冲突的结果。

The aim of this thesis is to give a new depictive perspective of HCI research by epistemology, so at the beginning of this thesis, an epistemological meaning of HCI is described, which is presented on the coordinate axis of nature world and life world.

从认识论角度对人机界面进行研究，目的在于提供一种描述性的视角，在这样的视角下，本文开篇即对人机界面的涵义从认识论角度做了描述。

But time will not allow me come back to the past time. It let me miss my direction on the coordinate axis of life. The original love ask me go ahead in the direction of straight .In that case.I will not meet the 0degree ice .And straight forward this road .I can see the raising sun.And will find out the beautiful view which others will never meet .If I turn my direction into the opposite one .I will just see the mirage, I trusted her. From childish time to grow up. I accepted many regards from different region and different persons.I shows a big smile all the time . I learnt thanks. Thanks for god let me live in such beautiful world. Thanks for the person who care of me; I leant sympathy .

但是时间不允许我再回到原点，它让我在人生的坐标上失去的方向，原本的爱一直指导我向正坐标走，它告诉我那样我不会遇到零度坚冰，一直走下去会看到初升的太阳，会看到很多别人的看不到的美景，它告诉我如果真得往恨的方向走，我看到的只是海市蜃楼，所以我听它的，从小到大，我接收到了来自同或者不同的地域的人的爱护，我一直咧开一张嘴笑着，我开始学会了感谢，感谢上仓让我生在这样一个世界，感谢我身边每一个人对我的关怀；我开始学会同情，同情一些孤儿老人和备受战争残害的人…。。

In order to apply virtual reality technique into medical image processing, make convenient for surgeons to access virtual and mini invasive surgery, this paper, presents a full interactive virtual endoscopy system framework, analyzing and discussing system architecture and algorithm models. We explain some key procedures in virtual endoscopy system such as definition of world coordinate, virtual camera, surface detection, normal approximation, volume rendering and surface rendering, and also some interactive control method.

在综合利用各种计算机图形、图象技术的基础上，提出了完整的交互式虚拟内窥镜系统的框架，同时对系统结构和各种模型进行了分析和讨论，还针对系统的实时性和绘制结果的逼真性要求，提出了基于 Object Cache和扩展的区域增长方法，并将其应用到医学图象处理当中，得到了较好的效果。

In the world coordinate system used in the mathematical model, a seven color...

在世界坐标系中用到了数学模型，实现了7彩彩虹。

The arithmetic is presented to solve the transformation between screen coordinate and world coordinate,which uses the prospective image arithmetic and Z-Depth buffer of OpenGL,and is suitable for many occasion.

OpenGL是作为一种新型的接口，它所具有的与硬件无关的特性，可以使其在不同的硬件平台实现，被多种操作系统平台支持，简单实用，并且可以在微机工作站上使用，却并不损失三维图形的性能。

Inscribed polygons are used to approximate a circle, and the number of line segments compose the polygon is detemined by the radius and its image of a circle. Calculation of rotation angles between circle and world coordinate systems with normal vector of circles is also discussed. The proposed approach is tested with several real image data, and results are very satisfying.

讨论了利用空间圆所在平面的法向向量计算空间圆局部坐标系相对于物方坐标系的两个旋转角的方法，系统论述了基于物方直接解和直线段最小二乘模板匹配方法进行空间圆匹配与重建的数学模型，并利用实际图像数据进行了重建实验，取得了较好的重建结果。

Section 2.2 Geodes and Geometry briefly describes OSG's default world coordinate system orientation.

2.2节Geodes和Geometry已经简要的介绍过了OSG的系统默认坐标。

Section 2.2 Geodes and Geometry briefly describes OSG's default world coordinate system orientation.

2.2节Geodes和Geometry已经简要的介绍过了OSG的体系默许坐标。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。