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1·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。

2·Ray casting is a widely recognized method for high quality volume rendering.

光线投射是一种高质量的体绘制方法。

3·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。

4·Ray casting were stared out at every pixel on screen along viewpoint direction, and then some sample points were selected on the line.

其光线投射算法从屏幕上的每个像素点出发，沿设定视点方向，发出一条射线，沿该射线选择若干个等距采样点。

5·Sufficient experimentation shows that we could reach a good frame rate and a satisfied image quality, which could be compared to the result of ray casting.

充分的实验结果表明本文的算法达到了和传统光线投射算法相媲美的图像质量和相当高的绘制速度。

6·The method applied space objects bounding box tracking algorithm to reduce the amount of light, and improved ray casting algorithm to speed up the rendering speed.

该方法利用物体空间的包围体算法来减少追踪光线的数量，加快了绘制速度。

7·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。

8·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。

9·A novel method for 3d visualization with improved image quality and speed has been developed by closely combined use of image processing, ray casting and bounding box technology.

把图像处理、光线投射与包围体技术有机结合，提出了一种提高成像质量和速度的三维可视化新方法。

10·Residual stress distribution for engine cylinder body made of casting aluminum alloy was investigated completely using X-Ray nondestructive detection method.

利用X射线无损检测方法，对铸造铝合金制造的某发动机汽缸体的残余应力分布进行了全面分析。