| 基于内容图像检索中的一种动态多维索引方法 |
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| 引用本文： | 徐焕,林坤辉,周昌乐.基于内容图像检索中的一种动态多维索引方法[J].计算机工程与应用,2006,42(23):161-164. |
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| 作者姓名： | 徐焕 林坤辉 周昌乐 |
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| 作者单位： | 1. 厦门大学软件学院,福建,厦门,361005
2. 厦门大学信息科学与技术学院,福建,厦门,361005 |
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| 基金项目： | 教育部面向21世纪教育振兴行动计划（985计划） |
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| 摘 要： | 多维索引技术是基于内容检索的图像数据库的关键技术。SR-tree和X-tree是目前比较成熟有效的多维索引技术。为了提高多维索引的性能,我们在分析SR-tree和X-tree的结构和性能的基础上,针对SR-tree分裂算法的不足,引入X-tree中超级节点的思想,通过改进插入和分裂算法,设计了一种新的多维索引结构ESR-tree,即ExtendedSR-tree。实验表明,随着数据量和维数的增多,ESR-tree的性能明显优于SR-tree和X-tree。
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| 关 键 词： | 基于内容检索 多维索引 超球体 超矩形 |
| 文章编号： | 1002-8331-（2006）23-0161-04 |
| 收稿时间： | 2005-11 |
| 修稿时间： | 2005-11 |
A Dynamic Multi-dimension Index Method in Content-based Image Retrieval |
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| Xu Huan,Lin Kunhui,Zhou Changle.A Dynamic Multi-dimension Index Method in Content-based Image Retrieval[J].Computer Engineering and Applications,2006,42(23):161-164. |
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| Authors: | Xu Huan Lin Kunhui Zhou Changle |
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| Affiliation: | 1 Software Department of Xiamen University, Xiamen, Fujian 361005; 2 Information Science and Technology Department of Xiamen University, Xiamen, Fujian 361005 |
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| Abstract: | Multidimensional indexing technology is the key technology of content-based retrieval in image database.SR-tree and X-tree are riper and more effective multidimensional indexing technology at present.In order to improve the performance of the indexing,we assay the structure and capability of SR-tree and X-tree.In view of the deficiencies of split algorithm in SR-tree,the paper designs a new multidimensional indexing structure ESR-Tree,that is Extended SR-tree,which introduces the idea of super node of X-tree and improves the insert and split algorithm.The results of the experimentation show that the capability of ESR-Tree is better than SR-tree and X-tree with the increasing data number and dimensions. |
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| Keywords: | content-based retrieval multidimensional indexing super-sphere super-rectangle |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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