| 一种基于地形轮廓匹配的地理数据AR可视化新方法 |
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| 引用本文： | 陈科,尹啸,陈晨,杨忠祥.一种基于地形轮廓匹配的地理数据AR可视化新方法[J].测绘科学,2011,36(1):119-120,115. |
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| 作者姓名： | 陈科 尹啸 陈晨 杨忠祥 |
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| 作者单位： | 河海大学土木工程学院;中国水电顾问集团昆明勘测设计研究院测绘大队;云南省旅游学校; |
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| 摘 要： | 地理数据的增强现实可视化技术,是地理信息科学可视化的一个重要的发展方向.作者针对结构特征明显的区域,初探了增强现实技术在地学可视化领域的应用.首先,分别提取视频影像数据的可视轮廓和DEM地形数据的水平轮廓,将两种地形轮廓匹配,实现地理数据的地理坐标系与视频影像的图像坐标系之间的配准,最后模拟了地理数据基于视频影像的AR...
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| 关 键 词： | 增强现实 可视化 地理数据 轮廓匹配 |
AR visualization of geospatial data based on silhouette matching |
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| CHEN Ke,YIN Xiao,CHEN Chen,YANG Zhong-xiang.AR visualization of geospatial data based on silhouette matching[J].Science of Surveying and Mapping,2011,36(1):119-120,115. |
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| Authors: | CHEN Ke YIN Xiao CHEN Chen YANG Zhong-xiang |
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| Institution: | ③(①School of Civil Engineering,Hohai University,Nanjing 210098,China;②Kunming Hydropower Investigation,Design and Research Institute,CHECC,Kunming 650041,China;③Yunnan Provincial Tourism School,Kunming 650221,China) |
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| Abstract: | Augmented reality(AR) visualization of geospatial data can be seen as an important research field in geospatial visualization.Based on a well-structured terrain,the author discussed the application of AR technology in GIS,and extended the boundary of geospatial visualization.Firstly,system extracted visual silhouette from video image by using edge detected techniques,and computed horizon silhouette from DEM based on the known location of the camera.Then the transformation between geospatial coordinate and i... |
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| Keywords: | augmented reality visualization geospatial data silhouette matching |
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