| 数字三维地理环境NewMap 3DGlobe中影像分层浏览技术的实现 |
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| 引用本文： | 徐华龙,王继周,王慕华.数字三维地理环境NewMap 3DGlobe中影像分层浏览技术的实现[J].测绘科学,2009,34(1). |
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| 作者姓名： | 徐华龙 王继周 王慕华 |
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| 作者单位： | 1. 中国测绘科学研究院,北京,100039;辽宁工程技术大学,辽宁阜新,123000
2. 中国测绘科学研究院,北京,100039 |
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| 摘 要： | 随着数字城市研究的不断深入,海量多分辨率影像的存储和网络发布已经成为GIS当前研究的热点,构建金字塔模型已经广泛应用于管理栅格数据。本文通过层块索引裁切方法,有效地减少了数据的存储单元,极大地提高了海量影像的浏览速度,并在国家测绘局成就展"寻找家园"系统中得到了很好的体现。
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| 关 键 词： | 影像 金字塔 层块索引 |
Implementation of based-layer image's browsing technology in digital 3D geographical environment NewMap 3DGlobe |
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| XU Hua-long,WANG Ji-zhou,WANG Mu-hua.Implementation of based-layer image's browsing technology in digital 3D geographical environment NewMap 3DGlobe[J].Science of Surveying and Mapping,2009,34(1). |
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| Authors: | XU Hua-long WANG Ji-zhou WANG Mu-hua |
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| Abstract: | With the development of the digital urban studies,the storage of massive multi-resolution images and the network release have become a hot in current GIS.Construction of the pyramid model has been widely applied in the management of raster data.Through subsetting images based on the hierarchical and block index,this article effectively reduced the data storage unit,and enormously enhanced the browsing speed of massive images,which obtained a very good expression in NewMap China system. |
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| Keywords: | image pyramid hierarchical and block index |
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