| 一种改进的基于Sobol序列的快速线积分卷积法 |
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| 引用本文： | 潘金京,李宗民.一种改进的基于Sobol序列的快速线积分卷积法[J].中国石油大学学报(自然科学版),2007,31(3):162-166. |
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| 作者姓名： | 潘金京 李宗民 |
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| 作者单位： | 中国石油大学,计算机与通信工程学院,山东,东营,257061 |
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| 摘 要： | 为提高快速线积分卷积法（Sobol-FLIC）的计算效率和流线的覆盖率，提出了一种改进的基于Sobol序列的快速线积分卷积法。计算结果表明，与一般的快速线积分卷积法相比，改进后的算法计算效率提高了约10%，同时可以产生稀疏纹理和密纹理，并且采用二次LIC法对图像进行后处理提高了可视化效果。在Matlab环境中，该算法与几种基本算法（LIC，FLIC）的可视化效率、计算固定数目流线的可视化结果和图像覆盖率的比较结果证实了其优越性。
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| 关 键 词： | 快速线积分卷积法 Sobol序列 矢量场可视化 |
| 文章编号： | 1673-5005（2007）03-0162-05 |
| 修稿时间： | 2007-03-12 |
An improved algorithm of fast line integral convolution with Sobol sequence |
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| PAN Jin-jing,LI Zong-min.An improved algorithm of fast line integral convolution with Sobol sequence[J].Journal of China University of Petroleum,2007,31(3):162-166. |
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| Authors: | PAN Jin-jing LI Zong-min |
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| Institution: | College of Computer Science and Communication Engineering in China University of Petroleum, Dongying 257061, Shandong Province, China |
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| Abstract: | To enhance computation efficiency and coverage of streamlines of fast line integral convolution(LIC),an improved algorithm of fast LIC with Sobol sequence(Sobol-FLIC) was presented.The computation results show that compared with the traditional FLIC,the computation efficiency of the improved algorithm increases by approximately 10%,and it can generate sparse texture and dense texture simultaneously.Also the property of result image was improved using double LIC algorithm.Compared with some other methods including LIC and FLIC in Matlab environment,the visualization efficiency,the image coverage after calculating fixed number of streamlines of the improved algorithm is better. |
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| Keywords: | fast line integral convolution Sobol sequence vector field visualization |
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