The accuracy of topographic map production based on aerial photogrammetry is positively correlated with the resolution of aerial photogrammetry image.In mountainous terrain,image resolution obtained by aerial photogrammetry varies greatly,resulting in uneven topographic map accuracy and easy to exceed the limit.In order to solve this problem,after in-depth analysis of imitation flight and oblique photogrammetry techniques,this paper proposes to combine the two techniques to survey and map large-scale topographic map in mountainous areas,and takes a practical project as an example to verify the feasibility of the scheme in this paper.The results show that the large-scale topographic map of mountainous areas produced by the scheme in this paper has uniform accuracy and meets the requirements of relevant specifications,which can bring reference for the surveying and mapping of large-scale topographic map of mountainous areas.
维普
万方数据