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Benchmark analysis of synthetical images - source code and example DEM data
Metadata
| Other contributing persons, institutions or organisations | dfg - Funder | |
| Other contributing persons, institutions or organisations | Herle, Ivo - TU Dresden - ProjectLeader | |
| Person(s) who is (are) responsible for the content of the research data | Wiebicke, Max | |
| Description of further data processing | The image analysis scripts that are supplied are written on the basis of the image software spam -- find the link in the details. | |
| Type of data acquisition | Experiment: numerical experiment | |
| Research objects | PhysicalObject: soil, granular matter | |
| Abstract | These files serve as the basis for a benchmark study on the image analysis to extract contact fabric from x-ray tomographies of granular materials. They are based on the python package "spam": The Software for the Practical Analysis of Materials -- that will soon be open source and installable via pip. For the moment (as of 2018-08-24), see: https://ttk.gricad-pages.univ-grenoble-alpes.fr/spam/intro.html#welcome-to-spam These files support the publication: A benchmark strategy for the experimental measurement of contact fabric | |
| Applied methods and techniques | The data on fabric and its evolution were created with the discrete element software WooDEM (https://woodem.eu/). | |
| Additional keywords | image analysis | |
| Additional keywords | image processing | |
| Additional keywords | fabric | |
| Additional keywords | contact orientation | |
| Additional keywords | interparticle contacts | |
| Additional keywords | granular materials | |
| Language | eng | |
| Year or period of data production | 2018 | |
| Publication year | 2018 | |
| Publisher | Technische Universität Dresden | |
| Publisher | Institut für Geotechnik | |
| Content of the research data | Text, Model, Software: - fabric data from DEM - scipt to turn DEM data to synthetic images - image analysis scripts to determine contact fabric from the images | |
| Other specification of usage rights | ||
| Holder of usage rights | Technische Universität Dresden | |
| Holder of usage rights | Institut für Geotechnik | |
| Usage rights of the data | CC-BY-4.0 | |
| Software | Resource Production: WooDEM | |
| Software | Resource Processing: spam | |
| Additional precise description of discipline | soil mechanics, granular materials | |
| Discipline(s) | Engineering | de |
| Discipline(s) | Materials Science | de |
| Discipline(s) | Physics | de |
| Title of the dataset | Benchmark analysis of synthetical images - source code and example DEM data |
Files in this item
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A benchmark strategy for the experimental measurement of contact fabric [2]
This work develops a strategy to benchmark image analysis tools that can used for the determination of contact fabric from tomographic images. The discrete element method is used to create and load a reference specimen for which the fabric and its evolution is precisely known. Chosen states of this synthetic specimen are turned into realistic images taking into account inherent image properties, such as the partial volume effect, blur and noise. The application of the image analysis tools on these images validates the findings of the metrological study and highlights the importance of addressing the identified shortcomings, i.e., the systematical over-detection of contacts and the strong bias of orientations when using common watersheds.