摘要
在Lee,Newman提出的不透明度校正算法的基础上,结合最小二乘法拟合方法提出一种新的不透明度绘制算法,针对不同的超采样间距进行有效的不透明度校正,整个过程使用GSGL语言实现。实验结果表明该算法较Lee,Newman算法在成像质量上有明显的提高。
Based on the algorithm gived by Lee Newman for opacity correction and combining the least square fitting method, puts forward a new opacity eorrection algorithm. For the different sample distance, acts a effiective opacity correction. And uses GSGL to realize the whole process. The experimental result shows that this algorithm has the improvementon the imaging quality com- paring with Lee Newman algorithm.
基金
广东省自然科学基金项目(No.S2011010002537)
关键词
体绘制
光线投射算法
非透明校正
最小二乘法
Volume Rendering
Ray Casting Algorithm
Opacity Correction
Least Square Method
