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

This Dataset contains supplementary data related to the scientific article "Photogrammetry for digital reconstruction of railway ballast particles - a cost-efficient method", by André Paixão, Ricardo Resende and Eduardo Fortunato, Construction and Building Materials, Elsevier B.V., ISSN: 0950-0618 (accepted for publication October 6th, 2018). https://doi.org/10.1016/j.conbuildmat.2018.10.048 The data comprises two .zip files, each containing a set of digital 3D .ply models of 18 reconstructed railway ballast particles. The 3D models in one set were obtained using laser scanning (Creaform EXAscan), the models in the other set were obtained by the photogrammetry approach proposed by the authors in the article. Original captures (.jpg) used for the 3D reconstruction of the ballast particles by the photogrammetry method described in the paper may also be provided. For additional data please contact the authors. Acknowledgments The laser scans and the traditional particle measurements were performed in the scope of a MSc thesis of Patrícia Jerónimo. The authors are grateful to Geotrilho for kindly lending the laser scan equipment and to Eng. Bruno Baeta for performing the scans. The help of Mr. Rui Coelho from LNEC in the photogrammetry tasks is also greatly acknowledged. The first author’s postdoctoral fellowship [SFRH/BPD/107737/2015] was supported by Portuguese Foundation for Science and Technology (FCT), through POCH co-financed by the ESF and national funds of MCTES, Portugal. Part of the work was conducted with the support of ISTAR-IUL (UID/MULTI/4466/2016). This work was conducted in the framework of the TC202 national committee of the Portuguese Geotechnical Society (SPG) “Transportation Geotechnics”, in association with the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE-TC202).本数据集包含与学术论文《摄影测量法实现铁路道砟颗粒的数字化重建——一种经济高效的方法》（Photogrammetry for digital reconstruction of railway ballast particles - a cost-efficient method）相关的补充数据，作者为André Paixão、Ricardo Resende与Eduardo Fortunato，发表于Elsevier B.V.旗下期刊《Construction and Building Materials》，ISSN：0950-0618，论文于2018年10月6日被录用待刊，DOI链接：https://doi.org/10.1016/j.conbuildmat.2018.10.048。 本数据集包含两个压缩包（.zip文件），每个压缩包内含18个经数字化重建的铁路道砟颗粒的三维PLY格式模型（.ply）。其中一组三维模型通过激光扫描设备（Creaform EXAscan）获取，另一组则采用本文作者在论文中提出的摄影测量方法获取。此外，还可提供采用本文所述摄影测量方法重建道砟颗粒三维模型时所用的原始拍摄图像（.jpg格式文件）。如需获取更多数据，请联系论文作者。 致谢 激光扫描与传统颗粒测试工作基于Patrícia Jerónimo的硕士学位论文开展。作者感谢Geotrilho无偿出借激光扫描设备，以及Bruno Baeta工程师协助完成扫描工作。同时衷心感谢葡萄牙国家土木工程实验室（LNEC）的Rui Coelho先生在摄影测量任务中提供的帮助。第一作者的博士后研究资助[SFRH/BPD/107737/2015]由葡萄牙科学技术基金会（FCT）通过欧洲社会基金（ESF）与葡萄牙科技与高等教育部（MCTES）的国家资金联合资助。部分研究工作在ISTAR-IUL项目[UID/MULTI/4466/2016]支持下完成。本研究属于葡萄牙岩土工程学会（SPG）TC202全国委员会“运输岩土工程”研究框架，并与国际土力学与岩土工程学会（ISSMGE-TC202）联合开展。