Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B1, 789-796, 2016
http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLI-B1/789/2016/
doi:10.5194/isprs-archives-XLI-B1-789-2016
 
06 Jun 2016
RESEARCH ON THE KEY TECHNOLOGY OF LARGE SCALE MAPPING FROM LOW ALTITUDE PHOTOGRAMMETRY
Wu Bo-Yi1, Zhang Ning2, and Su Guo-Zhong3 1Shanxi province Basic Geographic Information Institute, 030001Taiyuan China
2China Land Surveying and Planning Institute, Ministry of Land and Resources, 100035 Beijing
3Chinese Academy of Surveying & Mapping,100039 Beijing
Keywords: Large-scale Photogrammetry, Wide-angle Camera, Elevation Accuracy, Low Altitude Photogrammetry Production Process, Low Altitude Photogrammetric DLG Production, Multi-center Image Projection Reconstruction Abstract. Based on the theoretic analysis of the accuracy in large scale photogrammetric mapping, some defects in traditional procedure were discussed. A set of key technologies dedicate to accuracy improvement in low altitude photogrammetry were analyzed in detail, namely the utilization of wide angle camera and low altitude flight, enhancement in image matching, predesigned layout of Ground Control Points (GCPs) in field survey, optimization of adjustment model and improvement in map processing. Besides, a low altitude aerial unmanned airship system was established. Finally, successful implementation in 1:500 topographic mapping project in built-up areas of 30 counties in Shanxi Province proves the practicability and effectiveness of the proposed approaches.
Conference paper (PDF, 1124 KB)


Citation: Bo-Yi, W., Ning, Z., and Guo-Zhong, S.: RESEARCH ON THE KEY TECHNOLOGY OF LARGE SCALE MAPPING FROM LOW ALTITUDE PHOTOGRAMMETRY, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B1, 789-796, doi:10.5194/isprs-archives-XLI-B1-789-2016, 2016.

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