Study on the application of photogrammetry technology in large scale topo-graphic map surveying and mapping in high mountain area
The large scale topographic map of high mountain area is generated by fixed aerial height photogrammetry,but the accuracy of some areas cannot meet the requirement of 1:2000 accuracy.In order to solve this problem,based on the analysis of the characteristics and short-comings of the fixed aerial height photogrammetry method,the author puts forward the opera-tion scheme of generating large scale topographic map in the high mountain area with the imita-tion flying photogrammetry technology.The actual test shows that the topographic map genera-ted by this scheme has uniform accuracy and can meet the requirement of 1 ∶2000 mapping ac-curacy in alpine area.
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