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| 基于相邻层间相似性的加速Splatting算法 | |
| 引用本文： | 张建勋,孙济洲,韩逢庆,张加万.基于相邻层间相似性的加速Splatting算法[J].系统仿真学报,2005,17(2):421-423,428. |
| 作者姓名： | 张建勋 孙济洲 韩逢庆 张加万 |
| 作者单位： | 1. 天津大学电子与信息工程学院,天津,300072;重庆工学院计算机学院,重庆,400050 2. 天津大学电子与信息工程学院,天津,300072 3. 重庆工学院计算机学院,重庆,400050 |
| 基金项目： | 国家自然科学基金 (60373061)，重庆市科技攻关项目(CSTC.2004AC2018、2002CC23)，重庆市自然科学基金 (8647)。 |
| 摘 要： | 利用体数据的相邻层数据间具有高度相似性、差异较小这一普遍特性设计了Splatting体绘制的加速算法。计算各层采样点对屏幕像素颜色值的贡献时，只计算与上一层同位置有数据差异的采样点对屏幕像素颜色值贡献的变化量，然后用这个变化量修改在该采样点影响范围内的屏幕像素颜色值。试验表明，新算法可以大大加速Splatting算法的速度。 |
| 关 键 词： | 科学计算可视化 体绘制 Splatting算法 足迹表法将关键词补充至4-8个 |
| 文章编号： | 1004-731X(2005)02-0421-03 |
The Accelerating Splatting Algorithm Based on Comparability of Adjacency-Layers |
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| ZHANG Jian-xun,SUN Ji-zhou,HAN Feng-Qing,ZHANG Jia-wan.The Accelerating Splatting Algorithm Based on Comparability of Adjacency-Layers[J].Journal of System Simulation,2005,17(2):421-423,428. | |
| Authors: | ZHANG Jian-xun SUN Ji-zhou HAN Feng-Qing ZHANG Jia-wan |
| Institution: | ZHANG Jian-xun1,2,SUN Ji-zhou1,HAN Feng-qing2,ZHANG Jia-wan1 |
| Abstract: | Two adjacency-layers of volume data usually have very high comparability. It is designed an accelerating splatting volume-rendering algorithm based on comparability of adjacency-layers. When the contribution of the sampling point to screen pixels color value is computed, only the changed contribution of the next layer sampling point changed data value to screen pixels color value is computed. The influencing screen pixels color value is modified based on the changed contribution value. The experiment expresses that the new spaltting algorithm can obviously accelerate speed of volume rendering. |
| Keywords: | visualization in scientific computing volume rendering splatting algorithm footprint method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |