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   三维扫描转换 的翻译结果: 查询用时:0.253秒
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三维扫描转换
相关语句
  相似匹配句对
     The Three-dimension Accuracy
     三维精度
短句来源
     THREE DIMENSIONAL TRIANGULATION NET
     三维三角网
短句来源
     Study on an algorithm of linear scan conversion
     直线扫描转换算法的研究
短句来源
     SCAN TRANSFORMATION FOR THE BOUNDARY OF ARBITRARY AREA
     任意区域的边界扫描转换
短句来源
     Using Distance-comparison Arithmetic to Draw a Beeline
     直线扫描转换“距离比”算法
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  3 d scan conversion
Fast 3D scan conversion algorithms were implemented with several orders of interpolation kernels.
      


An accelerated ray casting algorithm for volume data is presented in this paper.The problem for sampling along a 3D ray can be viewed as the problem of 3D scan conversion of a ray. Random access of 3D volume data is avoided by using layer as the basic processing unit. Fast 3D scan conversion of ray is achieved by using look up table based on the fact that the ray has the same direction in parallel projection. It is shown that the algorithm is better on memory requirement and speed than traditional algorithm...

An accelerated ray casting algorithm for volume data is presented in this paper.The problem for sampling along a 3D ray can be viewed as the problem of 3D scan conversion of a ray. Random access of 3D volume data is avoided by using layer as the basic processing unit. Fast 3D scan conversion of ray is achieved by using look up table based on the fact that the ray has the same direction in parallel projection. It is shown that the algorithm is better on memory requirement and speed than traditional algorithm through its realization on PC.

加速的体数据光线投射算法将光线在三维空间的采样问题看成光线的三维扫描转换问题.以层为基本的处理,避免了对三维体数据的随机检索.并且利用平行投影光线的方向都相同的特点,用查表快速实现了光线的三维扫描转换.该算法在微机上得到检验,它在重建时间和内存花费上都优于传统的实现方法.

This paper discusses the volume rendering algorithm on regular scalar data and presents an efficient front-to-back volume rendering algorithm. This algorithm reduces the mount of rays by polygon scan convertion. By extending the Bresenham algorithm to three dimension, this algorithm voxelizes the data by three dimension scan convertion and avoids the sampling in empty voxel. So this algorithm greatly improves the efficiency of ray casting. At the same time, by using the function interface provided by OpenGL,...

This paper discusses the volume rendering algorithm on regular scalar data and presents an efficient front-to-back volume rendering algorithm. This algorithm reduces the mount of rays by polygon scan convertion. By extending the Bresenham algorithm to three dimension, this algorithm voxelizes the data by three dimension scan convertion and avoids the sampling in empty voxel. So this algorithm greatly improves the efficiency of ray casting. At the same time, by using the function interface provided by OpenGL, this algorithm simplifies the implement procedure.

对规则标量数据场的体绘制算法进行了讨论,在此基础上给出了一种快速的自前向后的光线投射算法,利用多边形扫描转换减少了投射光线的数量, 通过光线的参数化表示方法减少了光线与数据场求交的计算量,并且通过将Bresenham算法扩展至三维,对光线通过三维扫描转换以进行体素化,从而避免了对空体元的采样从而加速了光线投射的效率,而且通过利用OpenGL提供的函数接口,简化了算法的实现过程。

 
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