A fine grid earthwork measurement method based on UAV oblique photography
A technology of oblique photography and measurement method, applied in photogrammetry/video measurement, calculation, measurement device, etc., can solve problems such as surface vegetation and measurement result error, save manpower and time cost, improve accuracy, The effect of improving correctness and accuracy
Active Publication Date: 2021-06-01
SHANDONG TRAFFIC PLANNING DESIGN INST
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Problems solved by technology
[0005] At present, the method of earthwork measurement based on multi-rotor drone equipped with camera to collect information often cannot solve the influence of factors such as ground vegetation and houses on the calculation of earthwork, which makes the measurement results have errors. This disclosure effectively solves the problem through model repair technology. solved the problem
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[0041] The present disclosure will be further described below in conjunction with the accompanying drawings and embodiments.
[0042] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
[0043] It should be noted that the terminology used herein is only for describing specific embodiments, and is not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.
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The present disclosure provides a UAV oblique photography fine grid earthwork measurement method, which uses UAV aerial survey to obtain aerial survey data, integrates and processes the data, and obtains a real 3D model; adopts model restoration technology to eliminate trees, trees, etc. in the real 3D model Interfering objects such as houses, use the elevation around the hole left after the interference is deleted, fit the surface, use the surface to fill the hole, and finally obtain the repaired real-scene 3D model, and generate a real surface point cloud based on the repaired real-scene 3D model Construct an irregular triangular network model based on the point cloud, and then construct a regular grid model. Based on the regular grid model, the calculation value of the earthwork volume is obtained through the fine grid earthwork measurement formula. This disclosure can realize the earthwork based on the fine grid Accurate calculation of filling and excavation, and has the advantages of high precision, safe operation, saving manpower and time costs.
Description
technical field [0001] The disclosure belongs to the field of highway survey design and construction, and relates to a fine grid earthwork measurement method of UAV oblique photography. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Earthwork calculation is an important process in the field of highway design and construction. At present, there are many calculation methods for earthwork, including section method, grid method, DTM method, etc. In recent years, UAV oblique photography technology has gradually emerged. As a high-tech developed in the field of international photogrammetry in recent years, it can not only truly reflect the situation of ground objects, obtain the texture information of ground objects with high precision, but also pass advanced Advanced positioning, fusion, modeling and other technologies to generate a real 3D ...
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IPC IPC(8): G01C11/00G06T17/20
CPCG01C11/00G06T17/20
Inventor 相诗尧李振江徐润王甲勇张涛赵杰张常勇
Owner SHANDONG TRAFFIC PLANNING DESIGN INST