Abstract: Considering the image problems of the frequency domain volume rendering, a new frequency domain volume rendering algorithm based on data difference is advanced to improve rendering image quality. The data difference set is adopted to supersede original data field. The algorithm calculates the dynamic adjustor of 3D data field to adjust the image quality dynamically by simulating and compensating the realistic effect and depth effect of the rendering image. Sampling voxel combination and other techniques are adopted to speed up rendering process. Experimental results show that the algorithm can improve image quality and the speed of rendering process.

Key words: frequency domain volume rendering, data difference, dynamic adjustor, sampling voxel combination

摘要： 针对频域体绘制的图像质量问题，提出一种基于数据差分的且能动态提升图像质量的频域体绘制算法。用数据场差分替代原数据场，计算三维数据场的动态调节因子，通过模拟补偿图像的深度感和真实感，动态地调节图像质量。设计了采样点合并等加速技术绘制图像。实验结果表明该算法能提升图像质量，加快了绘制速度。

关键词: 频域体绘制, 数据差分, 动态调节因子, 采样点合并

CLC Number: 

• TP391