Unmanned aerial vehicle video augmented reality implementation method

A technology of augmented reality and implementation method, applied in image data processing, 3D modeling, instruments, etc., can solve the problem that the positioning relationship between video and geographic coordinate system is not established, the POS data of UAV is not fully utilized, and the information layer cannot be directly Multiplexing and other issues to achieve the effect of improving processing efficiency, reducing data processing workload, and improving information fusion capabilities
CN109872401APending Publication Date: 2019-06-11CHINA RAILWAY DESIGN GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA RAILWAY DESIGN GRP CO LTD
Publication Date
2019-06-11

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Abstract

The invention discloses an unmanned aerial vehicle video augmented reality implementation method based on a photogrammetry technology and a 3D GIS technology. The method mainly comprises the steps ofvideo frame extraction, camera calibration, aerial triangulation reconstruction, 3D GIS virtual scene establishment, sequence frame image rendering, video synthesis and the like. According to the invention, the POS data of the unmanned aerial vehicle are utilized; the accurate camera track and attitude are recovered by using a space three-adjustment method; A three-dimensional geographic scene isestablished in a 3D GIS system; The method comprises the steps of acquiring a video image, superposing various types of vector data, importing a three-dimensional model, adding a custom character label and a graphic label, realizing a blanking effect by importing a digital surface model, then acquiring a rendered image with the same visual angle as the original video frame by frame, superposing the rendered image with the original video frame by frame, and acquiring a video result containing rich information. According to the method, the processing efficiency and effect are improved, the automation degree can be greatly improved in repeated line inspection application of linear engineering, and an efficient and real technical means is provided for scheme display and on-site inspection.
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Description

technical field

[0001] The invention belongs to the fields of unmanned aerial vehicle application, computer vision and augmented reality, and in particular relates to a method for realizing augmented reality of unmanned aerial vehicle video based on photogrammetry technology and 3DGIS technology. Background technique

[0002] Multi-rotor UAV video aerial photography technology is widely used in the field of construction engineering, mainly used in the information collection of the site during the planning and design phase, and the site inspection during the construction process. Aerial video data without further processing can only be viewed and cannot be integrated with the information system. The video-based augmented reality technology can superimpose text and graphic annotations in the video, and can display design schemes, mark engineering element information, and record problems in aerial videos, which can greatly improve the informatization attributes of aerial video ...

Claims

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