三维的

Several steps including ct scan, target contouring and reconstruction of 3d digital structures were taken before treatment plans were designed through a cadplan computerized system which allowed a 3d crt and 4 imrt plans with 3, 5, 7 and 9 equispaced coplanar intensity modulated beams to be produced.

选取5例直肠癌病例，进行ct扫描、靶区勾画和三维图像结构重建，分别在cadplan治疗计划系统上进行三维适形和空间等分的3、5、7、9野的调强放疗计划设计，并对每一计划作出评价。

Methods A single shot 3-D laser scanner, VIVID 910, was used to capture the craniofacial images of 227 patients. Only a top light was used during scanning. The patients sit up straight with their Frankfurt plane parallel to the horizontal plane, and the shot was 10° upper-wards. The scans were applied frontally and 80°bi-laterally, and the data were registratered, merged and processed with a general reverse engineering software. The usage time and the image quality were documented.

利用VIVID 910单镜头三维激光扫描仪扫描227例受试者的颜面三维影像，采用全室内顶置光源，受试者眶耳平面尽量与地面水平，扫描仪镜头水平抬高10°，使用14mm焦距镜头，于受试者正前方及双侧各80°位置采集数据，获得数据经通用软件拼接、二期处理，统计扫描及数据处理所需的时间及扫描结果质量。

Directly reading the 210-layer of 0.65-mm-thick consecutive CT Dicom format images of human body thoracolumbar making use of 0.625-mm isotropous resolution thin layer scanning technique into the Mimics. Defining bone organization threshold, withdrawing each outline, partitioning each edge of layer picture, edited selectively and repaired by hole processing. After a redundancy data was cleaned, the thoracolumbar 3-D finite element geometry model was acquired. Then area mesh could be kept as the document Ansys named .lis as the suffix and be introduced into Ansys software directly to mesh body, and then transferred the body mesh to mimics to assignment son the basis of CT values, once again import Ansys to establish 3-D finite element model.

将以各向同性分辨率0.625 mm薄层扫描所得的层厚0.65 mm人体胸腰段连续断层210层Dicom格式CT图像，直接读入Mimics后界定骨组织阈值、提取各层面轮廓线、图像边缘分割、选择性编辑及补洞处理，去除冗余数据，三维化处理后获得胸腰段三维几何面网格模型，将其保存为后缀名。lis的Ansys文件，直接导入Ansys有限元分析软件进行体网格划分，再将体网格转入Mimics根据CT值给予赋值，再次导入Ansys生成有限元模型。

Job Requirement: 1、Specialist skills, machinofacture major and related major; 2、More than three years experience in mechanical design; 3、Familiar with the products of the manufacturing process, processing technology; 4、Familiar with the design about the mechanical parts; 5、Skilled use Pro/E to draw 3D and 2D drawings; 6、Proficiency in MS-office; 7、Ability of reading English specification and manual of equipment.

任职要求： 1、专科以上学历，机械制造或相关专业； 2、三年以上机械设计经验； 3、熟悉产品的制造工艺、加工工艺； 4、熟悉机械部件的设计； 5、熟练应用Pro/E制作三维效果图及二维工程图； 6、熟练操作办公软件； 7、能够看懂英文资料和说明书。

RESULTS AND CONCLUSION: The cervical three-dimension images were reconstructed clearly with the CT three-dimensional reconstruction techniques. The cervical pedicular width, the axial length,α and β angles were measured by the soft measure function.

结果与结论：应用CT三维重建技术可以获得清晰颈椎三维图像，使用软件测量功能可精确地获取预置螺钉的椎弓根管宽度、轴线长度、α及β角；在颈椎椎弓螺钉置入情况下，可测量置钉的水平角度安全范围。

For 3D model copyright protection, we propose a robust watermarking algorithm for 3D models which embeds watermark information by perturbing the distance between the vertices of the model to the centre of the model.

针对三维模型版权保护应用，我们提出了一种稳健的三维模型水印算法，它通过修改从模型中心到顶点的向量长度来嵌入水印。

In order to accurately and efficiently extract skeletons from 3D images, a new parallel 3D skeletonization algorithm is proposed.

为了准确有效地提取三维图像的骨架，提出一种新的并行三维图像骨架化算法。

The 3-D coherency cube is a recently developed seismi c interpretation t echnique. It uses the similarity of seismic signals between adjacent traces in 3 -D seismic volume to describe the lateral stratal and lithologic inhomogeneity.

三维相干数据体技术是利用三维地震数据体中相邻道之间地震信号的相似性来描述地层、岩性的横向非均匀性。

This paper presented an adaptive 3D fractal reconstruction algorithm to overcome the shortcomings of conventional methods, such as time consuming, ununiformity, parametric complexity.

针对常规三维分形地形重建算法具有的速度慢、插值点分布不均匀、参数设置复杂等缺点，提出自适应的三维分形地形重建算法。

However no one is contesting that 3D is better, and the successful companies use it very intelligently.

三维是有绝对有好处有用处的，很多成功的工程公司很聪明地使用三维，在这一点上毫无悬念和疑问。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。