计算机工程与应用 ›› 2015, Vol. 51 ›› Issue (3): 181-185.

• 图形图像处理 • 上一篇    下一篇

三维模型两点连通概率函数的快速计算

袁  浩1,滕奇志1,卿粼波1,吴运强2   

  1. 1.四川大学 电子信息学院,成都 610065
    2.中石油新疆油田分公司 实验检测研究院,新疆 克拉玛依 834000
  • 出版日期:2015-02-01 发布日期:2015-01-28

Fast calculation method for connected probability of two points in 3D model

YUAN Hao1, TENG Qizhi1, QING Linbo1, WU Yunqiang2   

  1. 1.College of Electronic Information, Sichuan University, Chengdu 610065, China
    2.Institute?of?Xinjiang Oilfield Detection, Petrochina, Kelamayi, Xinjiang 834000, China
  • Online:2015-02-01 Published:2015-01-28

摘要: 三维数字岩心模型的连通性分析中,两点连通概率函数是一个重要的统计参数。针对该函数由于计算复杂度过于庞大而造成计算时间过长的问题,提出了使用基于均匀分布的随机函数的空间随机采样法,缩小待计算数据集的规模,同时进行并行优化,达到缩短计算时间的目的。通过实验对比,结果表明,这种采样方法在平均相对误差较小的情况下,能够达到缩短计算时间数百倍,具有良好的稳定性。

关键词: 连通性分析, 随机采样, 两点连通性

Abstract: In the analysis of connectivity in 3D model, the connected probability of two points is an important statistical parameter. A sample method which is based on uniformly distributed random function is proposed to reduce the time of calculation with parallel optimization. It is observed that the time of calculation is reduced by hundred times with low average relative error by using the sample method.

Key words: connectivity analysis, random sample, two points connectivity