投射 1.(投; 掷) throw; cast2.(光线等射) project; cast 周围的人都对他投射出惊异的眼光。 all those around him looked at him with amazement.; 投射点 incident point; 投射镜 projecting mirror; 投射物 projectile; 投射值 range
Ray - casting volume rendering and some involved technologies , such as shading model , resampling and mapping , are introduced . a new method is presented to mend ray - casting volume rendering 本文重点讨论了光线投射体绘制技术的原理和所涉及的光照模型、伪彩色、重采样、图像合成等技术。
Secondly , we analyses the volume rendering based on ray casting , includeing algorithm principle , implementation pipeline . and for the features of medical slice images , improved trilinear interpolation algorithm is presented with an increase of the speed ray - casting in direct volume rendering 其次,详细分析了光线投射体绘制算法的基本原理、流程步骤,并针对医学断层图像的特点,提出和实现了改进的三线性插值算法,从而大大提高了光线投射法的绘制速度。