Application of multi-baseline photogrammetry to the urban high-rise building spatial information acquisition

Multi-baseline digital close photogrammetry system Lensphoto puts forward a new method to acquire the urban high-rise building spatial information mainly owing to its high effective image matching and precision of the point position calculation. Field measurement and office work of the urban high-rise building spatial information acquisition by the system Lensphoto are expatiated in this article. The experimental results show that the precision of the spatial information point position is reliable and the precision of the reconstructed three-dimensional digital model is higher. The multi-baseline digital close photogrammetry method can meet the need of the elevation extractionand and the need of the indoor area measuration.