Abstract:

ADS orthophoto image is mainly for the real estate registration to provide the basic base map,but in the production of ADS orthophoto imaging process,the key link is how to quickly and effectively edit the high-precision DEM,DEM directly determines the quality of the orthographic image.The traditional method of processing in the three-dimensional is to edit the feature points,lines,faces manually,the advantages is high precision,but the disadvantage is low,long cycle,put human and material resources.Based on this problem,this paper proposes a method to generate high-precision ADS orthophoto image by using the basic data of geography and national conditions to assist in the rapid editing of DSM.Experiments show that the method can quickly edit the DSM,so as to produce orthophoto images that meet the precision requirements,which greatly improves the work efficiency and has a wide range of promotional value.

Key words: ADS orthoimage, DSM, DEM, precision, Huahao super calculation platform, geographical conditions