Based on the introduction of common data models and rendering algorithms for volume data, this paper proposes a hybrid octree encoding to describe it.
在介绍当前体数据的数据模型与绘制方法的基础上，使用混合八叉树进行体数据的描述，实现了对其自适应分块存储。
In order to display important organs outstandingly, a new approach for fast volume rendering algorithm based on mixed data sets was put forward.
为了突出人体重点器官的显示，提出了一种新颖的基于混合数据场的快速体绘制算法。
Based on hardware-accelerated texture-based volume rendering algorithm, this paper proposed two methods for volume cutting, which are based on either depth buffer or discrete distance field.
在硬件纹理加速体重建算法的基础上，提出了两种模拟三维数据切割的方法：利用深度缓存实现和利用离散距离场实现。
In this work, we implement the traditional ray-casting-based volume rendering algorithm on the programmable graphics processing unit (GPU).
将传统的光线投射体绘制算法在具有可编程管线的图形处理器（GPU）上重新实现。
An interactive volume rendering algorithm is presented which is based on a novel optical visualization model.
交互式体绘制算法基于一个新的可视化模型。
Based on the splatting algorithm, an accelerated algorithm is used to pick up the nearest surface volume and realize fast volume rendering.
在抛雪球法的基础上，采用提取最近表面体素的方法实现加速。
This thesis discusses and studies on hardware based irregular objects modeling and rendering, it mainly studied hardware accelerated real-time volume rendering and hardware based particle system.
本文围绕基于硬件的不规则物体的绘制与建模展开讨论与研究，主要研究了基于硬件加速的实时体绘制技术以及基于硬件的粒子系统。
Direct volume rendering based 3d texture can guarantee image quality and reach interactive frame rates. Because of the restriction of texture memory, it is difficult to render large volume data.
基于3d纹理的直接体绘制算法可以在保证图像质量的同时达到较好的交互性能，但由于纹理内存的限制，大规模数据场的3d纹理直接体绘制比较困难。
This paper presents a measurement method based on volume rendering that any position can be measured.
对此，提出了一种在体绘制基础上可对任意部位进行测量的方法。
The key techniques of the rendering of vector data over 3d terrain based on stencil shadow volume algorithm are detailed and the effectiveness of this method is test-proven.
详细论述了基于模板阴影体算法矢量数据绘制的关键技术，并通过试验验证了该方法的有效性。
Based on the volume rendering algorithms, the dissertation presents Projection algorithm based on Voxel, in which the opacity parameter is introduced to achieve an 3d image with translucent effect.
在体绘制算法中，提出了基于体素的投影算法，将不透明度参数引入绘制过程，得到具有半透明效果的三维图像。
Based on the volume rendering algorithms, the dissertation presents Projection algorithm based on Voxel, in which the opacity parameter is introduced to achieve an 3d image with translucent effect.
在体绘制算法中，提出了基于体素的投影算法，将不透明度参数引入绘制过程，得到具有半透明效果的三维图像。
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