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Journal of Imaging, Volume 9, Issue 8

August 2023 - 17 articles

Cover Story: The k-space sampling trajectory heavily affects the performance of compressed sensing image reconstruction models. Still, knowledge on the relative performance of the well-known compressed sensing models with three-dimensional radial trajectories is lacking. Here, we utilize radial three-dimensional T1 mapping to compare the performance of total variation, locally low rank, and Huber penalty function approaches. Graphics processing unit implementation of a preconditioned primal-dual proximal splitting algorithm is used to solve the large-scale optimization problems in feasible time. Spatial total variation combined with locally low rank was the best performing model. However, differences between the models are not necessarily large. All of the source code is freely available. View this paper
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Articles (17)

  • Article
  • Open Access
2 Citations
2,813 Views
11 Pages

The Cross-Sectional Area Assessment of Pelvic Muscles Using the MRI Manual Segmentation among Patients with Low Back Pain and Healthy Subjects

  • Wiktoria Frącz,
  • Jakub Matuska,
  • Jarosław Szyszka,
  • Paweł Dobrakowski,
  • Wiktoria Szopka and
  • Elżbieta Skorupska

The pain pathomechanism of chronic low back pain (LBP) is complex and the available diagnostic methods are insufficient. Patients present morphological changes in volume and cross-sectional area (CSA) of lumbosacral region. The main objective of this...

  • Article
  • Open Access
1 Citations
2,812 Views
13 Pages

An open-set recognition scheme for tree leaves based on deep learning feature extraction is presented in this study. Deep learning algorithms are used to extract leaf features for different wood species, and the leaf set of a wood species is divided...

  • Article
  • Open Access
3 Citations
2,924 Views
14 Pages

Nighttime Image Dehazing by Render

  • Zheyan Jin,
  • Huajun Feng,
  • Zhihai Xu and
  • Yueting Chen

Nighttime image dehazing presents unique challenges due to the unevenly distributed haze caused by the color change of artificial light sources. This results in multiple interferences, including atmospheric light, glow, and direct light, which make t...

  • Article
  • Open Access
4 Citations
3,551 Views
20 Pages

Gas flaring is an environmental problem of local, regional and global concerns. Gas flares emit pollutants and greenhouse gases, yet knowledge about the source strength is limited due to disparate reporting approaches in different geographies, whenev...

  • Article
  • Open Access
4 Citations
2,083 Views
15 Pages

Fast Compressed Sensing of 3D Radial T1 Mapping with Different Sparse and Low-Rank Models

  • Antti Paajanen,
  • Matti Hanhela,
  • Nina Hänninen,
  • Olli Nykänen,
  • Ville Kolehmainen and
  • Mikko J. Nissi

Knowledge of the relative performance of the well-known sparse and low-rank compressed sensing models with 3D radial quantitative magnetic resonance imaging acquisitions is limited. We use 3D radial T1 relaxation time mapping data to compare the tota...

  • Article
  • Open Access
6 Citations
1,981 Views
10 Pages

Quantitative CT Metrics Associated with Variability in the Diffusion Capacity of the Lung of Post-COVID-19 Patients with Minimal Residual Lung Lesions

  • Han Wen,
  • Julio A. Huapaya,
  • Shreya M. Kanth,
  • Junfeng Sun,
  • Brianna P. Matthew,
  • Simone C. Lee,
  • Michael Do,
  • Marcus Y. Chen,
  • Ashkan A. Malayeri and
  • Anthony F. Suffredini

(1) Background: A reduction in the diffusion capacity of the lung for carbon monoxide is a prevalent longer-term consequence of COVID-19 infection. In patients who have zero or minimal residual radiological abnormalities in the lungs, it has been deb...

  • Review
  • Open Access
2 Citations
8,089 Views
19 Pages

Prospective of Pancreatic Cancer Diagnosis Using Cardiac Sensing

  • Mansunderbir Singh,
  • Priyanka Anvekar,
  • Bhavana Baraskar,
  • Namratha Pallipamu,
  • Srikanth Gadam,
  • Akhila Sai Sree Cherukuri,
  • Devanshi N. Damani,
  • Kanchan Kulkarni and
  • Shivaram P. Arunachalam

Pancreatic carcinoma (Ca Pancreas) is the third leading cause of cancer-related deaths in the world. The malignancies of the pancreas can be diagnosed with the help of various imaging modalities. An endoscopic ultrasound with a tissue biopsy is so fa...

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J. Imaging - ISSN 2313-433X