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Journal of Imaging, Volume 7, Issue 1

January 2021 - 11 articles

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Cover Story: An unsupervised machine learning technique is presented that is reinforced with hypothesis testing and statistical inference to iteratively segment the reconstructed image of a breast into fat, transition, fibroglandular, and malignant tissues. This segmentation leads to decomposition of the breast interior into disjoint tissue masks. An array of metrics is applied to compare masks extracted from reconstructed images and ground truth models. The quantitative results reveal the accuracy with which the geometric and dielectric properties are reconstructed, and are supplemented with qualitative information. View this paper

Articles (11)

  • Review
  • Open Access
6 Citations
4,972 Views
15 Pages

The Neutron Imaging Instrument CONRAD—Post-Operational Review

  • Nikolay Kardjilov,
  • Ingo Manke,
  • André Hilger,
  • Tobias Arlt,
  • Robert Bradbury,
  • Henning Markötter,
  • Robin Woracek,
  • Markus Strobl,
  • Wolfgang Treimer and
  • John Banhart

19 January 2021

The neutron imaging instrument CONRAD was operated as a part of the user program of the research reactor BER-II at Helmholtz-Zentrum Berlin (HZB) from 2005 to 2020. The instrument was designed to use the neutron flux from the cold source of the react...

  • Article
  • Open Access
5 Citations
3,905 Views
15 Pages

Improved Acquisition and Reconstruction for Wavelength-Resolved Neutron Tomography

  • Singanallur Venkatakrishnan,
  • Yuxuan Zhang,
  • Luc Dessieux,
  • Christina Hoffmann,
  • Philip Bingham and
  • Hassina Bilheux

15 January 2021

Wavelength-resolved neutron tomography (WRNT) is an emerging technique for characterizing samples relevant to the materials sciences in 3D. WRNT studies can be carried out at beam lines in spallation neutron or reactor-based user facilities. Because...

  • Article
  • Open Access
11 Citations
4,226 Views
16 Pages

The Photo Response Non-Uniformity pattern (PRNU-pattern) can be used to identify the source of images or to indicate whether images have been made with the same camera. This pattern is also recognized as the “fingerprint” of a camera sinc...

  • Article
  • Open Access
4 Citations
2,955 Views
14 Pages

Imaging Meets Cytometry: Analyzing Heterogeneous Functional Microscopic Data from Living Cell Populations

  • Matthew Draper,
  • Mara Willems,
  • Reshwan K. Malahe,
  • Alexander Hamilton and
  • Andrei I. Tarasov

Biological tissue consists of populations of cells exhibiting different responses to pharmacological stimuli. To probe the heterogeneity of cell function, we propose a multiplexed approach based on real‐time imaging of the secondary messenger levels...

  • Article
  • Open Access
10 Citations
3,530 Views
14 Pages

Early diagnosis and assessment of fatal diseases and acute infections on chest X-ray (CXR) imaging may have important therapeutic implications and reduce mortality. In fact, many respiratory diseases have a serious impact on the health and lives of p...

  • Article
  • Open Access
12 Citations
5,459 Views
27 Pages

Evaluating Performance of Microwave Image Reconstruction Algorithms: Extracting Tissue Types with Segmentation Using Machine Learning

  • Douglas Kurrant,
  • Muhammad Omer,
  • Nasim Abdollahi,
  • Pedram Mojabi,
  • Elise Fear and
  • Joe LoVetri

Evaluating the quality of reconstructed images requires consistent approaches to extracting information and applying metrics. Partitioning medical images into tissue types permits the quantitative assessment of regions that contain a specific tissue....

  • Article
  • Open Access
12 Citations
2,718 Views
16 Pages

EXAM: A Framework of Learning Extreme and Moderate Embeddings for Person Re-ID

  • Guanqiu Qi,
  • Gang Hu,
  • Xiaofei Wang,
  • Neal Mazur,
  • Zhiqin Zhu and
  • Matthew Haner

Person re-identification (Re-ID) is challenging due to host of factors: the variety of human positions, difficulties in aligning bounding boxes, and complex backgrounds, among other factors. This paper proposes a new framework called EXAM (EXtreme An...

  • Article
  • Open Access
5 Citations
3,551 Views
9 Pages

Neutron Imaging Using a Fine-Grained Nuclear Emulsion

  • Katsuya Hirota,
  • Tomoko Ariga,
  • Masahiro Hino,
  • Go Ichikawa,
  • Shinsuke Kawasaki,
  • Masaaki Kitaguchi,
  • Kenji Mishima,
  • Naoto Muto,
  • Naotaka Naganawa and
  • Hirohiko M. Shimizu

A neutron detector using a fine-grained nuclear emulsion has a sub-micron spatial resolution and thus has potential to be applied as high-resolution neutron imaging. In this paper, we present two approaches to applying the emulsion detectors for neut...

  • Article
  • Open Access
7 Citations
4,989 Views
33 Pages

Image Aesthetic Assessment Based on Image Classification and Region Segmentation

  • Quyet-Tien Le,
  • Patricia Ladret,
  • Huu-Tuan Nguyen and
  • Alice Caplier

27 December 2020

The main goal of this paper is to study Image Aesthetic Assessment (IAA) indicating images as high or low aesthetic. The main contributions concern three points. Firstly, following the idea that photos in different categories (human, flower, animal,...

  • Article
  • Open Access
11 Citations
4,061 Views
15 Pages

24 December 2020

Dermoscopic images allow the detailed examination of subsurface characteristics of the skin, which led to creating several substantial databases of diverse skin lesions. However, the dermoscope is not an easily accessible tool in some regions. A less...

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