Multi-view three-dimensional reconstruction method and system based on unmanned aerial vehicle

Abstract

The invention relates to a multi-view three-dimensional reconstruction method and system based on an unmanned aerial vehicle. The method comprises the steps that, an image acquisition device, carried by the unmanned aerial vehicle, acquires a plurality of two-dimensional images of a target building in multiple preset orientations and from multiple preset views; and an image processing, according to the plurality of two-dimensional images acquired by the image acquisition device, generates a three-dimensional model of the target building by use of preset image processing software. The multi-view three-dimensional reconstruction method and system are advantageous in that, the three-dimensional model of the target building can be generated according to multi-view images of the target building, surface data of a target historic building can be obtained in an overall way, implementing difficulty of the method is low, use devices are cheap, work period is short, fund input is reduced, and the two-dimensional reconstruction is with high precision and good effect.

Description

Technical field [0001] The invention relates to the technical field of image three-dimensional reconstruction, in particular to a multi-view three-dimensional reconstruction method and system based on drones. Background technique [0002] Three-dimensional reconstruction refers to the establishment of a digital model suitable for computer representation and processing of three-dimensional objects. It is the basis for processing, operating and analyzing its properties in a computer environment. It is also a key technology for establishing virtual reality expressing the objective world in a computer. The protection of cultural relics often involves three-dimensional reconstruction of high-rise brick-tower cultural relics to obtain comprehensive spatial information of the cultural relics. [0003] The traditional three-dimensional reconstruction of high-rise brick tower cultural relic buildings usually requires scaffolding to be built around the brick tower cultural relic building, an...

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Problems solved by technology

[0005] In view of the defects that the existing 3D laser scanning method for 3D reconstruction is very difficult to implement, the equipment is expensive, the work cycle is long, a large amount of funds is required, and the accuracy of 3D reconstruction is low, and the effect is poor, the present invention proposes a method based on A multi-view 3D reconstruction method for UAVs, including:

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