Surface settlement observation method based on tilt photography measurement of drone
A technology of oblique photogrammetry and surface subsidence, which is applied in the field of geographic surveying and mapping, can solve the problems of inability to monitor the overall subsidence of the surface, and the inability to guarantee efficiency and safety, and achieve the effects of low observation cost, fast observation speed, and high efficiency
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[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0023] Reference figure 1 The present invention provides a method for observing surface subsidence based on drone tilt photogrammetry. The present invention uses tilt photogrammetry technology to obtain images of various angles of the collapsed surface, and establishes a subsidence area with spatial information through aerial triangulation and measurement of image control points. Real scene 3D model and orthophoto, use real scene 3D model...
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