摘要： 颜色合成是体绘制的重要组成部分,其中大量重复计算严重影响了绘制的实时性。为了减少颜色合成中的计算量,该文从体数据中分离出了与交互绘制无关的特征进行预处理,进而避免了交互绘制过程中的大量重复计算。对于稳定采样区间的颜色合成,提出了基于透明度标尺的颜色合成新算子,该方法对于类属较少的体数据,其绘制加速效果是十分明显的。
关键词:
体绘制,
颜色合成,
透明度标尺,
体数据
Abstract: Color composition is an important part in volume rendering, and its computation is very time-consuming. In order to reduce the computation of color computation, some characters that are unrelated with interactive rendering are separated from volume data, so lots of repeated calculation can be eliminated in interactive rendering. Based on the technique of transparent degree ruler, the operator of color composition is improved in the unchangeable sampling range. When the classifications of the volume data are small, this operator can obviously accelerate the rendering procedure.
中图分类号:
张先勇,郝重阳,雷方元. 交互体绘制中的快速颜色合成[J]. , 2004, 30(24): 10-.
ZHANG Xianyong1, HAO Chongyang1, LEI Fangyuan1 2. Rapid Color Composition in Interactive Volume Rendering[J]. , 2004, 30(24): 10-.