Sphericity and roundness computation for particles using the extreme vertices model

Irving Cruz-Matías*, Dolors Ayala, Daniel Hiller, Sebastian Gutsch, Margit Zacharias, Sònia Estradé, Francesca Peiró

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

87 Citations (Scopus)


Shape is a property studied for many kinds of particles. Among shape parameters, sphericity and roundness indices had been largely studied to understand several processes. Some of these indices are based on length measurements of the particle obtained from its oriented bounding box (OBB). In this paper we follow a discrete approach based on Extreme Vertices Model and devise new methods to compute the OBB and the mentioned indices. We apply these methods to synthetic sedimentary rocks and to a real dataset of silicon nanocrystals (Si NC) to analyze the obtained results and compare them with those obtained with a classical voxel model.

Original languageEnglish
Pages (from-to)28-40
Number of pages13
JournalJournal of Computational Science
Publication statusPublished - 1 Jan 2019

Bibliographical note

Publisher Copyright:
© 2018 Elsevier B.V.

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • General Computer Science
  • Modelling and Simulation


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