An effective fast volume rendering algorithm is investigated.
研究有效的体绘制加速算法。
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。
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。
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。
The author proposes a view selection method for volume rendering algorithm. It combines the formulation of entropy with the ray-casting algorithm to objectively evaluate the quality of view.
作者提出了一种视图选择方法，它将信息熵公式与光投射算法结合在一起能够对体绘制中所选视图质量的优劣做出客观的评价。
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。
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。
During volume rendering, gradient will be used both on the procedure Classification and Shading. So rapidity and accuracy of gradient estimation is important to high quality rendering algorithm.
体绘制流程中，梯度在数据分类和明暗计算中都要用到，因此快速准确的梯度估算对高质量的体绘制算法至关重要。
Ray casting is a classic algorithm of Volume Rendering.
光线投射算法是体绘制中的经典方法。
Algorithm research is main part of visualization research, the thesis refers to two kinds of algorithms for volume rendering: Fourier volume rendering and shear-warp volume rendering.
算法研究是可视化的主要研究领域，本文的研究涉及两类体绘制算法：频域体绘制和错切变形体绘制。
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.
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。
In this paper, three-dimensional seismic data field of direct volume rendering-Ray Casting Algorithm is mainly studied.
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。
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 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。
In this paper, an algorithm is proposed for the accelerated rendering of volume on linear octrees basis.
提出了基于线性八叉树的加速体绘制算法。
Ray casting is an important algorithm in direct volume rendering, but it has the disadvantages of the large amount of computation and inefficient computation of sampling-points.
光线投射法是一种重要的体绘制算法，但直线上采样点的确定和采样值计算是非常费时的，也是影响体绘制实时性的重要因素。
Ray casting is an important algorithm in direct volume rendering, but it has the disadvantages of the large amount of computation and inefficient computation of sampling-points.
光线投射法是一种重要的体绘制算法，但直线上采样点的确定和采样值计算是非常费时的，也是影响体绘制实时性的重要因素。
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