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Journal of Imaging, Volume 8, Issue 3

March 2022 - 32 articles

Cover Story: Visual tracking is still an open challenge in computer vision, especially with mobile cameras and in the wild. Errors in the target’s bounding-box estimations accumulate over time and yield to drifting of the tracker. Hence, bounding-box estimations must be as precise as possible in each frame. This article proposes a new iterative procedure to locate the target in the image by gradually refining its bounding box. It also introduces the idea of non-conflicting bounding-box transformations, which allows applying multiple refinements to the target’s bounding box without introducing ambiguities when learning parameters. The empirical results demonstrate that the proposed approach improves the single iterative refinement in terms of accuracy of tracking results. View this paper
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Articles (32)

  • Article
  • Open Access
6 Citations
3,866 Views
12 Pages

A New Approach in Detectability of Microcalcifications in the Placenta during Pregnancy Using Textural Features and K-Nearest Neighbors Algorithm

  • Mihaela Miron,
  • Simona Moldovanu,
  • Bogdan Ioan Ștefănescu,
  • Mihai Culea,
  • Sorin Marius Pavel and
  • Anisia Luiza Culea-Florescu

(1) Background: Ultrasonography is the main method used during pregnancy to assess the fetal growth, amniotic fluid, umbilical cord and placenta. The placenta’s structure suffers dynamic modifications throughout the whole pregnancy and many of...

  • Article
  • Open Access
8 Citations
3,020 Views
12 Pages

Neutron Tomography Studies of Two Lamprophyre Dike Samples: 3D Data Analysis for the Characterization of Rock Fabric

  • Ivan Zel,
  • Bekhzodjon Abdurakhimov,
  • Sergey Kichanov,
  • Olga Lis,
  • Elmira Myrzabekova,
  • Denis Kozlenko,
  • Mannab Tashmetov,
  • Khalbay Ishbaev and
  • Kuatbay Kosbergenov

The rock fabric of two lamprophyre dike samples from the Koy-Tash granitoid intrusion (Koy-Tash, Jizzakh region, Uzbekistan) has been studied, using the neutron tomography method. We have performed virtual segmentation of the reconstructed 3D model o...

  • Article
  • Open Access
16 Citations
4,205 Views
13 Pages

Comparing Desktop vs. Mobile Interaction for the Creation of Pervasive Augmented Reality Experiences

  • Tiago Madeira,
  • Bernardo Marques,
  • Pedro Neves,
  • Paulo Dias and
  • Beatriz Sousa Santos

This paper presents an evaluation and comparison of interaction methods for the configuration and visualization of pervasive Augmented Reality (AR) experiences using two different platforms: desktop and mobile. AR experiences consist of the enhanceme...

  • Article
  • Open Access
3,557 Views
24 Pages

The main objective of this paper was to demonstrate the capability of dedicated small satellite infrared sensors with cooled quantum detectors, such as those successfully utilized three times in Germany’s pioneering BIRD and FireBIRD small sate...

  • Article
  • Open Access
13 Citations
5,308 Views
14 Pages

Metal Artifact Reduction in Spectral X-ray CT Using Spectral Deep Learning

  • Matteo Busi,
  • Christian Kehl,
  • Jeppe R. Frisvad and
  • Ulrik L. Olsen

Spectral X-ray computed tomography (SCT) is an emerging method for non-destructive imaging of the inner structure of materials. Compared with the conventional X-ray CT, this technique provides spectral photon energy resolution in a finite number of e...

  • Article
  • Open Access
2 Citations
3,395 Views
26 Pages

The first part of the paper contains a short review of the image processing in early vision is static, when the eyes and the stimulus are stable, and in dynamics, when the eyes participate in fixation eye movements. In the second part, we give an int...

  • Review
  • Open Access
9 Citations
8,117 Views
10 Pages

Visualization of Inferior Alveolar and Lingual Nerve Pathology by 3D Double-Echo Steady-State MRI: Two Case Reports with Literature Review

  • Adib Al-Haj Husain,
  • Daphne Schönegg,
  • Silvio Valdec,
  • Bernd Stadlinger,
  • Thomas Gander,
  • Harald Essig,
  • Marco Piccirelli and
  • Sebastian Winklhofer

Injury to the peripheral branches of the trigeminal nerve, particularly the lingual nerve (LN) and the inferior alveolar nerve (IAN), is a rare but serious complication that can occur during oral and maxillofacial surgery. Mandibular third molar surg...

  • Article
  • Open Access
3 Citations
3,057 Views
10 Pages

Investigation of Nonlinear Optical Properties of Quantum Dots Deposited onto a Sample Glass Using Time-Resolved Inline Digital Holography

  • Andrey V. Belashov,
  • Igor A. Shevkunov,
  • Ekaterina P. Kolesova,
  • Anna O. Orlova,
  • Sergei E. Putilin,
  • Andrei V. Veniaminov,
  • Chau-Jern Cheng and
  • Nikolay V. Petrov

We report on the application of time-resolved inline digital holography in the study of the nonlinear optical properties of quantum dots deposited onto sample glass. The Fresnel diffraction patterns of the probe pulse due to noncollinear degenerate p...

  • Article
  • Open Access
3 Citations
3,749 Views
14 Pages

Fabrication of a Human Skin Mockup with a Multilayered Concentration Map of Pigment Components Using a UV Printer

  • Kazuki Nagasawa,
  • Shoji Yamamoto,
  • Wataru Arai,
  • Kunio Hakkaku,
  • Chawan Koopipat,
  • Keita Hirai and
  • Norimichi Tsumura

In this paper, we propose a pipeline that reproduces human skin mockups using a UV printer by obtaining the spatial concentration map of pigments from an RGB image of human skin. The pigment concentration distributions were obtained by a separating m...

  • Article
  • Open Access
21 Citations
3,892 Views
20 Pages

Comparison of 2D Optical Imaging and 3D Microtomography Shape Measurements of a Coastal Bioclastic Calcareous Sand

  • Ryan D. Beemer,
  • Linzhu Li,
  • Antonio Leonti,
  • Jeremy Shaw,
  • Joana Fonseca,
  • Iren Valova,
  • Magued Iskander and
  • Cynthia H. Pilskaln

This article compares measurements of particle shape parameters from three-dimensional (3D) X-ray micro-computed tomography (μCT) and two-dimensional (2D) dynamic image analysis (DIA) from the optical microscopy of a coastal bioclastic calcareous...

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J. Imaging - ISSN 2313-433X