基于高分七号卫星影像生产建筑白模  

Building White Model Production Based on GF-7 Satellite Images

作　　者：刘冬枝 LIU Dongzhi(Chongqing Institute of Surveying and Mapping,MNR,Chongqing 401120,China)

机构地区：[1]自然资源部重庆测绘院,重庆401120

出　　处：《地理空间信息》2023年第11期104-106,共3页Geospatial Information

基　　金：自然资源部“自然资源科技创新发展”资助项目(12130041)。

摘　　要：高分七号卫星是我国首颗民用亚米级高分辨率光学传输型立体测绘卫星,在建筑密集地区或地形起伏较大的山区易发生遮挡。建筑基底高程、建筑高度提取是生产建筑白模的关键,构建实景三维场景可实现建筑白模的自动生成与可视化。对高分七号与资源三号卫星影像进行多视准核线影像匹配,以高分七号卫星影像为主,通过全局优化遮挡检测与视差空洞修补等技术生成高精度DSM数据,有效获得建筑顶部高程。基于高分七号卫星影像选取建筑物密集区域进行建筑白模生产实验,为后期实景三维中国建设做好技术支撑。The GF-7 satellite is China’s first civilian sub-meter high-resolution optical transmission stereoscopic surveying and mapping satel-lite,which is prone to occlusion in densely building areas or mountainous areas with undulating terrain.The extraction of building base elevation and building height is the key to the production of building white model.Building a 3D real scene can realize the automatic generation and visual-ization of building white model.We performed multi-horizon epipolar image matching on the satellite images of GF-7 and ZY-3,mainly used GF-7 satellite image to generate high-precision DSM data through globally optimized occlusion detection and parallax hole repair,and effective-ly obtained building top elevation.Based on the GF-7 satellite images,we selected the densely building areas to conduct building white model production experiments,so as to provide technical support for the later 3D real scene China construction.

关 键 词：高分七号卫星影像 多视准核线影像匹配 实景三维场景 建筑白模 

分 类 号：P228[天文地球—大地测量学与测量工程]