| 网络环境下三维模型的多尺度数据组织方法 |
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| 引用本文： | 陈静,许嘉,李墨,谢秉雄.网络环境下三维模型的多尺度数据组织方法[J].测绘科学,2011,36(6):182-183,154. |
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| 作者姓名： | 陈静 许嘉 李墨 谢秉雄 |
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| 作者单位： | 1. 武汉大学测绘遥感信息工程国家重点实验室,武汉,430079
2. 中国舰船研究设计中心,武汉,430064 |
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| 基金项目： | 国家自然科学基金青年基金资助计划(40801163);国家863计划资助项目(2009AA12Z229) |
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| 摘 要： | 本文针对网络环境下海量三维模型数据的传输与可视化要求,探讨了三维模型数据多尺度组织方法.设计了基于点索引的三维模型几何数据结构,结合多尺度纹理表达,构建三维模型多尺度数据结构.在此基础上,基于四叉树结构构建分层分块的三维模型数据多尺度存储结构,从而适应三维模型数据的多尺度分块调度与传输,并通过实验验证该方法能根据三维场...
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| 关 键 词： | 三维模型 点索引数据结构 多尺度 网络传输 |
Multi-scale data organization of 3D models in network environment |
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| CHEN Jing,XU .Jia,LI Mo,XIE Bing-xiong.Multi-scale data organization of 3D models in network environment[J].Science of Surveying and Mapping,2011,36(6):182-183,154. |
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| Authors: | CHEN Jing XU Jia LI Mo XIE Bing-xiong |
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| Institution: | ①(①State Key Laboratory of Information Engineering in Surveying,Mapping,and Remote Sensing,Wuhan 430079,China;②China Ship Development and Design Center,Wuhan 430064,China) |
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| Abstract: | For the requirements of the transmission and visualization of massive 3D model data in network environment,the organization method for network transmission of 3D model multi-scales data was presented in this paper.Firstly,the geometric data structure of 3D models based on point index was designed.Secondly,combined with multi-scale texture,the multi-scale data structure of 3D models was constructed.Then,the storage structure of multi-scale 3D models data in hierarchical was designed,in order to accommodate multi-scales 3D model data block scheduling and transmission.Finally,according to the experiments,it was proved that this method could transport the multi-scale data dynamically and by blocks with the changes of viewpoint in the scene,response transfer requests fast,to ensure the efficiency of 3D scene rendering. |
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| Keywords: | 3D model point index structure multi-scales network transportation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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