但是您可以采用将一个四维数据结构看作是多个三维立方体的方式来理解四维数据结构。
But you can conceptualize a four-dimensional data structure by thinking of the fourth dimension as multiple three-dimensional cubes.
移动立方体(MC)算法是基于规则体数据抽取等值面的经典算法，本文最后设计开发了一个基于MC算法的医学图像三维重建系统。
Marching cubes (MC) algorithm is a classical algorithm to extract iso-surface from regular volume data. At last, a medical images reconstruction system based on MC algorithm is developed.
利用约束稀疏脉冲反演方法对崖城13—1构造的高分辨率三维地震资料进行了反演，得到了全频带的绝对波阻抗数据体。
After 3d high resolution seismic data of Yacheng 13-1 structure were inversed using restriction sparse pulse inversion, data volume of full-frequency band absolute wave impedance was gained.
本文基于三维离散余弦变换（3D-DCT）技术和扩频通信技术提出三维体数据鲁棒水印嵌入算法。
This paper proposes a robust watermarking algorithm for volume data based on three-dimension discrete cosine transform(3D-DCT) and spread-spectrum communication technique.
本文主要研究三维地震数据场的直接体绘制方法——光线投射算法。
In this paper, three-dimensional seismic data field of direct volume rendering-Ray Casting Algorithm is mainly studied.
利用三维地震资料解决复杂的地质问题具有明显的优越性，因为三维地震数据体包含丰富的地层、岩性等信息。
Three dimensional seismic data are effective for solving geologic problem because the data imply the response of formation and lithology information underground.
三维地震数据体是反映地下地质构造的三维数字图象。
Three-dimension Seismic Data Volume is a three-dimensional digital image which maps the geological structure subsurface.
提出一种基于模板阴影体算法的矢量数据绘制方法，实现矢量数据在三维场景中的高质量实时叠加显示。
The key technique of vector data render based on stencil shadow volume is discussed and is proved by experiments.
文章阐述了以小层精细标定、相干数据体、三维可视化等地震解释新技术为技术保证，地质、测井、地震综合解释为技术路线的构造研究方法及其应用。
A method for research of structure with a new seismic interpretation involving fine subzone calibration, coherent data volume and visualization as a technical guarantee and.
建立了工程岩体多源信息数据库，实现了数据输入、编辑、查询、排序、转换和统计分析等功能，以便为三维可视化和力学分析提供必要的依据。
Engineering rock mass database is set up and some functions are implemented, i. e. data input, edit, query, sortation, transformation and statistic analysis.
通过品位与储量等矿石属性计算的实现，为矿床的三维可视化仿真提供体素处理手段。首先对原始采样数据进行预处理，以构造满足需要的规则体数据；
Through the process of grade and reserve calculation, a method of dealing with voxel for visualization technology and its applications in an integrated simulation system were provided for deposits.
在地震数据处理中，通过在地震数据体中人工拾取同相轴建立地层三维模型，这一过程费时费力。
In seismic data processing, create meshes of layers is researched by extracting events manually from the seismic volume data. Event extracting is a manpower-draining work.
由于体绘制技术是将三维的离散数据直接转换为二维图像而不必生成中间几何图元，所以又称为直接体绘制。
Volume rendering is also known as direct volume rendering, for no intermediate geometry primitives are generated during its visualization process.
改进传统窗口调节函数，结合模糊集理论和三维区域生长技术，提出并实现一种采用CT体数据场的人体器官提取新方法。
Based on the adjustment function, combining to fuzzy sets theory and 3d region growing technology, an approach for organ extraction from the ct human volumetric data was developed.
体绘制技术可以显示工业CT三维数据的整体特征和内部细节信息。
It can display the whole characteristics and inner detail information of ICT 3d data by volume rendering.
面绘制从三维体数据中抽取物体等值面，通过传统的图形学进行显示；
The surface rendering extracts isosurface from 3D volume data, and then uses traditional graphical technology to display.
第四章介绍了我们实现的利用VRML进行医学体数据三维重建的工作；
The chapter 4 introduced the work of using VRML in medical body data 3D reconstruction which realized by us.
但由于偏移算子的孔径影响，经偏移得到的三维地震数据体在空间上被模糊了，不利于进行断层检测。
Because of influence of aperture of migration operator, the image of 3-d seismic data volume in space is smeared after migration, which is unfavorable for detecting the faults.
利用机载三维遥感技术能够同步获取三维位置和光谱数据的一体化信息。
The integrated information of 3d position and spectral data can be acquired simultaneously with the airborne 3d remote sensing technology.
目的研究一种基于表面矢量场平滑的三维重建方法，对DICOM格式的体数据的三维结构进行表面重建。
Objective to explore a novel method of three-dimensional (3d) reconstruction based on vector field smoothing, for the purpose of 3d surface reconstruction of DICOM format volume data sets.
医学体数据三维可视化技术有着广泛的应用前景。
The 3-d Visualization technique on medical volume data has extensive application and broad prospects.
通过网络并行电法数据体的三维电阻率反演，得到矿井工作面底板下三维空间的电阻率分布特征。
With 3D-resistivity inversion technology of the net parallel electrical data, the resistivity distribution 3D mine face floor is got.
在研究工作的基础上，论述了滑坡GIS基础数据库、滑坡体三维地质界面数据库及滑坡可视化分析模型的建立途径。
The establishment of GIS foundation database, the 3d geological interface database of landslide body and the analytical model of GIS visualization about landslide is studied in this paper.
本次处理工作是在三维偏移数据体的基础上，抽取48条连井线进行。
The processing has been done on the basis of 3-D migrated data volume with 48 well-connecting lines being selected.
而图像的配准、图像分割、体数据集的构建、三维空间插值则是医学图像三维可视化实现过程中的关键技术环节。
The image registering, image segmentation, pixel data set construction and 3d special interpolation are the key technologies in medical images 3d reconstruction.
本文介绍一种合并三维地质模型网格数据体的新方法。
This paper presents a new scale-up technique for the grid data volume of a 3D geological model.
然后，根据心电及角度信号提取正确原始切片图像，进行预处理，并利用三维直接匹配插值方法对旋转扫描超声心动图像进行插值，获得规则体数据。
After pre processing, the technique of direct 3d interpolation for rotational scanning images was used to convert the original rotary scanning images into regular volume data.
最后，将处理后的水体和地层数据合并，并通过直接体绘制中的光线投射算法有效地实现了水声体数据的三维可视化。
Finally, the processed water and seafloor data is combined, and then the visualization of SAS volume data is achieved by the ray casting algorithm of direct volume rendering.
其中的体绘制方法直接对所有的体数据进行处理，有利于保留三维医学图像的细节信息，具有较好的绘制效果。
The volume rendering method does shading processes to all of the volume data directly, maintains the details of the medical images, and achieves better render results.
地震数据体结构特征，指对二维或三维地震数据体中每一地震道离散数据点按时间顺序排列所显示的波形特征。
Seismic data structure characteristics means the waveform character arranged in the time sequence at discrete data points in each 2-D or 3-D seismic trace.
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