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June 09, 2023 preprint Open access Aachen paper

2DeteCT -- A large 2D expandable, trainable, experimental Computed Tomography dataset for machine learning

arXiv (Cornell University)

DOI: 10.48550/arxiv.2306.05907 Full text (OA) OpenAlex

Abstract

Recent research in computational imaging largely focuses on developing machine learning (ML) techniques for image reconstruction, which requires large-scale training datasets consisting of measurement data and ground-truth images. However, suitable experimental datasets for X-ray Computed Tomography (CT) are scarce, and methods are often developed and evaluated only on simulated data. We fill this gap by providing the community with a versatile, open 2D fan-beam CT dataset suitable for developing ML techniques for a range of image reconstruction tasks. To acquire it, we designed a sophisticated, semi-automatic scan procedure that utilizes a highly-flexible laboratory X-ray CT setup. A diverse mix of samples with high natural variability in shape and density was scanned slice-by-slice (5000 slices in total) with high angular and spatial resolution and three different beam characteristics: A high-fidelity, a low-dose and a beam-hardening-inflicted mode. In addition, 750 out-of-distribution slices were scanned with sample and beam variations to accommodate robustness and segmentation tasks. We provide raw projection data, reference reconstructions and segmentations based on an open-source data processing pipeline.

Authors 5

  1. Maximilian B. Kiss

    Centrum Wiskunde & Informatica

    Affiliation as printed

    Centrum Wiskunde & Informatica , Computational Imaging group , Amsterdam , 1098 XG , The Netherlands

    Centrum Wiskunde & Informatica, Computational Imaging group, Amsterdam, 1098 XG, The Netherlands

  2. Sophia Bethany Coban

    Centrum Wiskunde & Informatica · University of Manchester

    Affiliation as printed

    Centrum Wiskunde & Informatica , Computational Imaging group , Amsterdam , 1098 XG , The Netherlands

    Department of Mathematics , University of Manchester , Oxford Road , Manchester , M13 9PL . United Kingdom

    Centrum Wiskunde & Informatica, Computational Imaging group, Amsterdam, 1098 XG, The Netherlands

    Department of Mathematics, University of Manchester, Oxford Road, Manchester, M13 9PL. United Kingdom

  3. Kees Joost Batenburg Aachen

    Leiden University · Centrum Wiskunde & Informatica

    Affiliation as printed

    Centrum Wiskunde & Informatica , Computational Imaging group , Amsterdam , 1098 XG , The Netherlands

    Leiden University , LIACS , Leiden , 2300 RA , The Netherlands

    Centrum Wiskunde & Informatica, Computational Imaging group, Amsterdam, 1098 XG, The Netherlands

    Leiden University, LIACS, Leiden, 2300 RA, The Netherlands

  4. Tristan van Leeuwen

    Centrum Wiskunde & Informatica · Utrecht University

    Affiliation as printed

    Centrum Wiskunde & Informatica , Computational Imaging group , Amsterdam , 1098 XG , The Netherlands

    Utrecht University , Mathematical Institute , Utrecht , 3584 CD , The Netherlands

    Centrum Wiskunde & Informatica, Computational Imaging group, Amsterdam, 1098 XG, The Netherlands

    Utrecht University, Mathematical Institute, Utrecht, 3584 CD, The Netherlands

  5. Felix F. Lucka

    Centrum Wiskunde & Informatica

    Affiliation as printed

    Centrum Wiskunde & Informatica , Computational Imaging group , Amsterdam , 1098 XG , The Netherlands

    Centrum Wiskunde & Informatica, Computational Imaging group, Amsterdam, 1098 XG, The Netherlands

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References 31