计算机工程 ›› 2009, Vol. 35 ›› Issue (21): 267-269.doi: 10.3969/j.issn.1000-3428.2009.21.090

• 开发研究与设计技术 • 上一篇    下一篇

基于海量地震数据的多分辨率扩展八叉树模型

张 磊,唐 杰,武港山   

  1. (南京大学计算机科学与技术系,南京 210093)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-11-05 发布日期:2009-11-05

Multi-resolution Ratio Extended Octree Model Based on Mass Seismic Data

ZHANG Lei, TANG Jie, WU Gang-shan   

  1. (Department of Computer Science and Technology, Nanjing University, Nanjing 210093)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-11-05 Published:2009-11-05

摘要: 针对现有PC硬件条件的限制和地震数据的海量特征,提出一种基于扩展八叉树的分块多层多分辨率模型。该模型保存了叶节点属性和中间节点属性,实现多分辨率建模,采用基于Morton码的数据块索引方式来提高查询效率。实验结果表明,该模型是一种高效的海量地震数据组织方式,在地质建模领域具有较高的应用价值。

关键词: 海量地震数据, 多分辨率, 八叉树

Abstract: Aiming at limitations of existing PC hardware and the feature of mass seismic data, this paper presents a partitioning multilevel multi-resolution model based on extended octree. The model stores attribute of leaf nodes and intermediate nodes, realizes multi-resolution modeling, and uses data block index method based on Morton code to enhance query efficiency. Experimental results show that the model is an efficient organization style of mass seismic data, and it has well application value of the geological modeling.

Key words: mass seismic data, multi-resolution ratio, octree

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