Stereo image matching is the key link in extracting elevation information from SPOT data.
立体影像匹配是自动提取SPOT影像高程信息的关键技术。
2
The upper level glass volume hovers lightly over a dark iron-spot brick base that mediates between glass and ground and negotiates the grade change along the north elevation.
上层玻璃体被轻轻放置在一片介于玻璃与地面之间的深色铁斑表面的砖基础之上，柔化了北立面的高差。
3
This paper discusses the methods of automatic extraction of digital elevation model (DEM) from remote sensing image. A system of scheme is established to extract DEM from SPOT image.