基于海量地震数据的多分辨率扩展八叉树模型  

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

作　　者：张磊[1] 唐杰[1] 武港山[1] 

机构地区：[1]南京大学计算机科学与技术系,南京210093

出　　处：《计算机工程》2009年第21期267-269,共3页Computer Engineering

基　　金：江苏省自然基金资助项目(BK2008262);江苏省高技术研究(工业部分)基金资助项目(BG2007037)

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。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 nodeling, and uses data block index method based on Morton code to enhance query efficiency. Experimental results show that the model is an ;fficient organization style of mass seismic data, and it has well application value of the geological modeling.

关 键 词：海量地震数据 多分辨率 八叉树 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]