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Through the development of computer image processing technology and UAV technology, after installing high-definition cameras on UAVs and taking high-resolution images, the technology of directly generating DOM images in the surveyed areas using software has been well-developed. However, under the emergency conditions such as dealing with disasters, the long-term processing time required for aerial surveys of UAVs has become a major efficiency constraint to surveying and mapping. This paper focuses on the rapid mapping and mosaicking of survey images from unmanned aerial vehicles under emergency conditions, and elaborates current research status, difficulties and resolvents of the rapid mapping of existing UAVs.

Due to the accelerating urbanization process, land resources are tight, the construction environment becomes more and more complex and severe. In particular, the future airport will be built on the mountain or be constructed reclamation airport, the terrain and geological conditions of the airport construction are complex and the climate is harsh. These all raise higher requirements for the accuracy and safety of airport planning, design and construction. This paper combines the mapping technology with the key links of airport construction, and elaborates on the key technologies, which provides a good reference for related projects and is of great significance for improving the efficiency and quality of airport construction.