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Roughness Estimation of Multi-Scale Rock Joints based on SfM & MVS Photogrammetry with A DSLR Camera in Animation Mode

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Abstract

To recreate high-quality three-dimensional (3D) models of rock joints for quantitative roughness characterization more economically, portably, and quickly, it is necessary to assess the feasibility and accuracy of 3D reconstruction of rock joints using SfM & MVS photogrammetry with a camera in animation mode. A low-cost approach for 3D reconstruction by shooting videos was conducted to obtain point clouds of rock joints. Besides, to evaluate the accuracy of photogrammetry, high-resolution models of the same cases were collected using 3D laser scanning technology to compare the difference between models reconstructed by these two technologies, and the difference was calculated by one algorithm—Iterative Closest Point (ICP). Comparative analyses demonstrated that the models reconstructed by photogrammetry and the output of the laser scanning were in good agreement. Furthermore, these two different sources of point cloud data were used to realize quantitative characterization of the structural surface roughness via calculating JRC and θ*max/(C+1) values, and the related assessment results also showed good agreement. To ensure the precision of 3D models of rock joints, it is strongly advised that the 3D reconstruction be carried out using a camera that has been properly calibrated. Moreover, there is a significant difference in calibrated camera parameters between animation mode and image mode, which cannot be ignored in 3D reconstruction. Comparative analyses demonstrated that SfM & MVS photogrammetry with a DSLR camera in animation mode can generate a point cloud of multi-scale rock joints with acceptable accuracies for roughness estimation, proving the effectiveness of a low-cost approach for 3D reconstruction by shooting videos.

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Data availability

Upon reasonable request, Yunfeng Ge, the study's first author, will provide the information and resources that back up its results.

Code availability

On reasonable request, the first author, Yunfeng Ge, will provide the code that underpins the study's conclusions.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (No. 42077264) and the Guiding Scientific Research Project of the Hubei Provincial Department of Education (No. B2022260). We are grateful to Prof. Xiong Zhang from the Missouri University of Science and Technology for his assistance with photogrammetry. The editor of this work and the reviewers deserve particular thanks from the writers for their insightful criticism.

Funding

National Natural Science Foundation of China,No. 42077264,Guiding Scientific Research Project of Hubei Provincial Department of Education,No. B2022260

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Authors and Affiliations

Authors

Contributions

Yunfeng Ge: Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Resources, Software, Supervision, Validation, Visualization, Writing-original draft. Kaili Chen: Data curation, Software, Validation, Visualization, Writing-original draft. Geng Liu: Visualization, Writing-original draft. Huiming Tang: Data curation, Conceptualization, Funding acquisition. Qian Chen: Data curation, Investigation. Weixiang Chen: Data curation. Zhiguo Xie: Software.

Corresponding author

Correspondence to Yunfeng Ge.

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The authors declare no competing interests.

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Communicated by: H. Babaie

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Ge, Y., Chen, K., Liu, G. et al. Roughness Estimation of Multi-Scale Rock Joints based on SfM & MVS Photogrammetry with A DSLR Camera in Animation Mode. Earth Sci Inform 16, 3489–3509 (2023). https://doi.org/10.1007/s12145-023-01093-6

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  • DOI: https://doi.org/10.1007/s12145-023-01093-6

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