Automatic three-dimensional modeling measurement method based on oblique photography of unmanned aerial vehicle

Abstract

The invention discloses an automatic three-dimensional modeling measurement method based on oblique photography of an unmanned aerial vehicle. The method comprises the following steps: extracting an image and image measurement data through oblique photography of the unmanned aerial vehicle; importing the obtained data into an automatic modeling processing system to obtain a spatial live-action three-dimensional model; therefore, data needing to be measured or calculated are obtained; according to the method, the multi-angle high-resolution image can be conveniently and flexibly acquired, the live-action three-dimensional model can be quickly and automatically generated, geographic element acquisition can be performed indoors based on the live-action three-dimensional model, field actual measurement is replaced, time is saved, and the method has the characteristics of high efficiency, low cost, accurate data and the like.

Description

technical field [0001] The invention belongs to the field of UAV photogrammetry, in particular to an automatic three-dimensional modeling measurement method based on UAV oblique photography. Background technique [0002] With the continuous improvement of measurement technology in our country, people have higher requirements for the accuracy of measurement results and measurement cost; at present, the field measurement method of GPS-RTK and total station is usually used for rural homestead measurement, and the disadvantages of this method It takes a lot of manpower to carry out field measurements, and the efficiency is low, the cycle is long, and the cost is high. The measurement results and costs are not very ideal. Therefore, a measurement method that can save material and manpower is needed. Compared with the traditional The method reduces the investment and improves the efficiency of the measurement method. Therefore, a new automatic 3D modeling measurement method based ...

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Problems solved by technology

[0002] With the continuous improvement of measurement technology in our country, people have higher requirements for the accuracy of measurement results and measurement cost; at present, the field measurement method of GPS-RTK and total station is usually used for rural homestead measurement, and the disadvantages of this method It takes a lot of manpower to carry out field measurements, and the efficiency is low, the cycle is long, and the cost is high. The measurement results and costs are not very ideal. Therefore, a measurement method that can save material and manpower is needed. Compared with the traditional The method reduces the investment and improves the efficiency of the measurement method. Therefore, a new automatic 3D modeling measurement method based on UAV oblique photography is proposed. After the UAV photogrammetry, the image is quickly and automatically generated. The generated 3D model replaces the field measurement, which saves time and cost, has high efficiency, low cost and accurate data. It is currently applied to the "Rural Real Estate Integrated Real Estate Registration" project, and can also be used in smart cities, urban planning, illegal construction, emergency Widely used in technical fields such as monitoring, earthquake mitigation and disaster relief

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