Multimodal Transfer Functions for Talbot-Lau Grating Interferometry Data

Lucas da Cunha Melo, Bernhard Fröhler, Johannes Weissenböck, Johann Kastner, Christoph Heinzl

Research output: Chapter in Book/Report/Conference proceedingsConference contribution

Abstract

Talbot-Lau grating interferometry X-ray computed tomography (TLGI-XCT) generates three modalities depicting different features in the scanned specimen. The combination of two or even all three modalities is often required for an in-depth analysis of the material. We present a multimodal transfer function widget for this purpose. It enables users to edit the combined transfer functions of three modalities, resulting in a customized fused image. We implement methods to arrange the individual transfer functions in two different intuitive layouts. The weighting for each modality can be easily modified and the resulting fusion image is immediately updated. We provide a combined histogram over all modalities within a triangular visualization which we call trimodal heatmap. Through this interactive analysis technique, the user can quickly gain insights into the analysed material. We show the effectiveness of our technique with the help of real-world TLGI-XCT datasets.
Original languageEnglish
Title of host publicationProceedings of Symposium on Digital Industrial Radiology and Computed Tomography (DIR2019), Fürth
Number of pages9
Publication statusPublished - 2019
EventInternational Symposium on Digital Industrial Radiology and Computed Tomography (DIR2019) - Fürth, Germany
Duration: 2 Jul 20194 Jul 2019
https://www.dir2019.com/

Conference

ConferenceInternational Symposium on Digital Industrial Radiology and Computed Tomography (DIR2019)
CountryGermany
CityFürth
Period02.07.201904.07.2019
Internet address

Keywords

  • Visualization
  • Visual Computing
  • Visual Analysis

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