Suitability of Aerial Photogrammetry for Dump Documentation and Volume Determination in Large Areas

Ľudovít Kovanič,Monika Blistanova,Martin Štroner,Rudolf Urban,Peter Blistan

doi:10.3390/app11146564

Ľudovít Kovanič, Monika Blistanova + Show 3 more

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https://doi.org/10.3390/app11146564

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Abstract

The study presented in this paper analyses the results of measurements and data processing for documentation and quantification of material in heaps in large areas, where UAVs may no longer be effective due to a large range. Two test heaps were selected from a whole area, where the aim was to confirm the suitability of using the method of digital aerial photogrammetry by manned (crewed) aerial vehicle. For comparison, a commonly used GNSS RTK method was also used. Terrestrial laser scanning was chosen as the control reference method. TLS measurement is a trusted method with high accuracy. The methods were compared with each other through the quality of the mesh, analysis of the cross-sections, and comparison of the volumes of heaps. As a result, the determination of heap volumes and documentation using digital aerial photogrammetry can be confirmed as an appropriate, efficient, fast, and accurate method. The difference in the detected volume was less than 0.1%, the mean difference of the meshes was less than 0.01 m, and the standard deviation was less than 0.05 m.

Highlights

In industrial plants, such as mining and metallurgical plants, there is a frequent requirement for the periodical quantification of the amount of materials stored in the input or waste dumps
This study aims to demonstrate that the use of aerial photogrammetry (AP) achieves the required accuracy and detail of outputs
The main characteristics of the created point clouds are listed in Tables 1 and 2

Summary

Introduction

Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. In industrial plants, such as mining and metallurgical plants, there is a frequent requirement for the periodical quantification of the amount of materials stored in the input or waste dumps. The stored material usually consists of a loose consistency gravel, sand, iron ore pellets, steelmaking slag, gangue, fly ash, etc. Given the logistics of the production process, the materials entering into production usually have a heap shape. Materials of different kinds or fractions are stored in separate heaps. Material loading and removal occur in small heaps realized by tracked or wheeled loaders; at larger scale heaps, a belt or giant gantry machines are preferably used

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