| 摘要: |
| 科学可视化中，体绘制是非常重要的一类方法，它的基本操作是色彩合成．本文对色彩合成过程中透明度的变化序列进行了考察，提出了一个基于透明度基准区与视点无关的透明度标尺，并将各类物质的透明度转换为基于透明度标尺的步长，使成像时的色彩合成过程省略许多重复计算，从而提高可视化效率． |
| 关键词: 科学视算，体绘制，色彩合成，透明度标尺 |
| DOI： |
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| USING TRANSPARENT DEGREE RULER TO COMPOSITE COLORS IN VOLUME RENDERING |
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Wang Wencheng,Wu Enhua
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| Abstract: |
| Color composition is a fundamental step for direct volume rendering in scientific visualization.A new technique is proposed in this paper for compositing colors.By this method,a transparent degree ruler based on a transparent degree unit is built,and it is independent of the view point.After the transparent degrees of all media are transferred to relative steps based on the transparent degree ruler, a new compositing' color method is presented to eliminate a lot of repeated calculations to improve the efficiency of visualization. |
| Key words: Scientific visualization,volume rendering, compositing colors,transparent degree ruler. |
