Smart city 3D map model photography establishment method based on unmanned aerial vehicle technology

The invention discloses a smart city 3D map model photographing establishment method based on an unmanned aerial vehicle technology, and the method comprises the steps: setting various photographing modes in a process of carrying out the aerial photographing of a building in a to-be-photographed region through an unmanned aerial vehicle; and an accurate and reliable photographing position parameter analysis mode is provided for various photographing modes based on the boundary dimension of the to-be-photographed building, so that the real scene picture of the to-be-photographed building obtained under the various photographing modes and the corresponding photographing position parameters can reflect a plurality of visual angles and can present a full view. According to the method, comprehensive high-quality imaging of the building real scene is realized, the defects of building real scene aerial photography caused by too single photography mode and too random photography position selection in the prior art ar