摘要
为快速获取数字城市建设所需的三维信息,文中介绍了利用单张影像中规则几何建筑物在影像中的的灭点信息,在已知内方位元素的情况下,推导出在现有二维GIS数据的辅助下解求影像外方位元素公式,提出从单张影像上量测建筑物高程(或高度)数据的方法,并简要叙述了该方法的应用领域。
In order to obtain three-dimensional information of digital country building, this paper states using vanishing point information of regular geometry building in single image. Under the condition of inner orientation elements is known, it educes the formula of the image outer orientation elements which is assisted by existing planar GIS data, and brings forward the method of measuring building＇ s elevation （or height） from single image, then states application field of this method.
出处
《测绘工程》
CSCD
2008年第1期71-74,共4页
Engineering of Surveying and Mapping
关键词
单像片
灭点
方位元素
三维重建
single image
vanishing point
orientation elements
3D reconstruct
