Interactive Exploration and Visualization using MetaTracts extracted from Carbon Fiber Reinforced Composites

Arindam Bhattacharya, Johannes Weissenböck, Rafe Wenger, Artem Amirkhanov, Johann Kastner, Christoph Heinzl

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


This work introduces a tool for interactive exploration and visualization using MetaTracts. MetaTracts is a novel method for extraction and visualization of individual fiber bundles and weaving patterns from X-ray computed tomography (XCT) scans of endless carbon fiber reinforced polymers (CFRPs). It is designed specifically to handle XCT scans of low resolutions where the individual fibers are barely visible, which makes extraction of fiber bundles a challenging problem. The proposed workflow is used to analyze unit cells of CFRP materials integrating a recurring weaving pattern. First, a coarse version of integral curves is used to trace sections of the individual fiber bundles in the woven CFRP materials. We call these sections MetaTracts. In the second step, these extracted fiber bundle sections are clustered using a two-step approach: first by orientation, then by proximity. The tool can generate volumetric representations as well as surface models of the extracted fiber bundles to be exported for further analysis. In addition a custom interactive tool for exploration and visual analysis of MetaTracts is designed. We evaluate the proposed workflow on a number of real world datasets and demonstrate that MetaTracts effectively and robustly identifies and extracts fiber bundles.

Original languageEnglish
Article number7493610
Pages (from-to)1988-2002
Number of pages15
JournalIEEE Transactions on Visualization and Computer Graphics
Issue number8
Publication statusPublished - 1 Aug 2017


  • MetaTracts
  • X-ray computed tomography
  • analysis and visualization
  • carbon fiber reinforced polymers
  • fiber bundle extraction
  • interactive visual exploration and analysis


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