Photogrammetry for digital reconstruction of railway ballast particles – A cost-efficient method

[Display omitted] •A photogrammetry method is applied for 3D reconstruction of ballast particles.•It is significantly cheaper than laser scanning, mainly requiring a digital camera.•A set of ballast particles were scanned using both methods and results were compared.•The attained precision is compar...

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Bibliographic Details
Published in:Construction & building materials 2018-12, Vol.191, p.963-976
Main Authors: Paixão, André, Resende, Ricardo, Fortunato, Eduardo
Format: Article
Language:English
Subjects:
3D digital model
3D reconstruction
Aggregate
Aggregates (Building materials)
Ballast (Railroads)
Computer vision
Cost engineering
Laser scanning
Measurements
Mechanical properties
Methods
Particle geometry
Photogrammetry
Physical properties
Railway ballast
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