Now showing items 1-20 of 129

    • Latent space mapping for generation of object elements with corresponding data annotation 

      Bazrafkan, Shabab; Javidnia, Hossein; Corcoran, Peter (Elsevier, 2018-10-25)
      Deep neural generative models such as Variational Auto-Encoders (VAE) and Generative Adversarial Networks (GAN) give promising results in estimating the data distribution across a range of machine learning fields of ...
    • An investigation of the variation of dielectric properties of ovine lung tissue with temperature 

      Bonello, Julian; Elahi, Muhammad Adnan; Porter, Emily; O'Halloran, Martin; Farrugia, Lourdes; Sammut, Charles V. (IOP Publishing, 2019-06-24)
      Presently, lung cancer is the leading cause of cancer deaths. Microwave thermal ablation is commonly used for the treatment of lung cancer. During microwave ablation treatment, changing temperatures (up to 100 °C) cause ...
    • A feasibility study on microwave imaging of bone for osteoporosis monitoring 

      Amin, Bilal; Shahzad, Atif; Crocco, Lorenzo; Wang, Mengchu; O'Halloran, Martin; González-Suárez, Ana; Elahi, Muhammad Adnan (Springer, 2021-03-30)
      The dielectric properties of bones are found to be influenced by the demineralisation of bones. Therefore, microwave imaging (MWI) can be used to monitor in vivo dielectric properties of human bones and hence aid in the ...
    • IEEE POCO 2015 brings fun and education to Glasgow [Conference Reports] 

      Corcoran, Peter (Institute of Electrical and Electronics Engineers, 2015-12-11)
      [No abstract available]
    • Iris liveness detection for next generation smartphones 

      Thavalengal, Shejin; Nedelcu, Tudor; Bigioi, Petronel; Corcoran, Peter (Institute of Electrical and Electronics Engineers, 2016-07-19)
      This paper presents a novel liveness detection method that exploits the acquisition workflow for iris biometrics on smartphones using a hybrid visible (RGB)/near infra-red (NIR) sensor. These devices are able to capture ...
    • Investigation of histology radius for dielectric characterisation of heterogeneous materials 

      La Gioia, Alessandra; O'Halloran, Martin; Elahi, Muhammad Adnan; Porter, Emily (Institute of Electrical and Electronics Engineers, 2018-07-13)
      Knowledge of the dielectric properties of biological tissues is fundamental in the design of novel electromagnetic-based medical devices. Tissue dielectric properties are typically measured using the open-ended coaxial ...
    • Modelling the sensing radius of a coaxial probe for dielectric characterisation of biological tissues 

      La Gioia, Alessandra; O'Halloran, Martin; Porter, Emily (Institute of Electrical and Electronics Engineers, 2018-08-22)
      The open-ended coaxial probe is the most common measurement tool used to dielectrically characterize biological tissues. Most healthy and malignant biological tissues are macroscopically heterogeneous, with the exception ...
    • Quantification of the sensing radius of a coaxial probe for accurate interpretation of heterogeneous tissue dielectric data 

      La Gioia, Alessandra; Salahuddin, Saqib; O'Halloran, Martin; Porter, Emily (Institute of Electrical and Electronics Engineers, 2018-05-31)
      Accurate tissue dielectric measurements are crucial for the development of electromagnetic diagnostic and therapeutic devices that are designed based on estimates of the dielectric properties of diseased and healthy tissues. ...
    • Effects of standard coagulant agents on the dielectric properties of fresh human blood 

      Salahuddin, Saqib; O'Halloran, Martin; Porter, Emily; Farrugia, Lourdes; Bonello, Julian; Sammut, Charles V.; Wismayer, P. Schembri (Institute of Electrical and Electronics Engineers, 2017-11-27)
      In this paper, the effects of coagulation and temperature on the dielectric properties of human blood are investigated over the frequency range of 400 MHz - 20 GHz using freshly extracted blood samples. The dielectric ...
    • An anatomically accurate dielectric profile of the porcine kidney 

      Salahuddin, Saqib; La Gioia, Alessandra; Shahzad, Atif; Elahi, Muhammad Adnan; Kumar, Arun; Kilroy, David; Porter, Emily; O'Halloran, Martin (IOP Publishing, 2018-02-26)
      Microwave ablation is a promising treatment for kidney cancer. Accurate knowledge of the dielectric properties of biological tissues is vital for quantifying the safety, reliability and accuracy of ablation, among other ...
    • Challenges of post-measurement histology for the dielectric characterisation of heterogeneous biological tissues 

      La Gioia, Alessandra; O'Halloran, Martin; Porter, Emily (MDPI, 2020-06-09)
      The dielectric properties of biological tissues are typically measured using the open-ended coaxial probe technique, which is based on the assumption that the tissue sample is homogeneous. Therefore, for heterogeneous ...
    • Predicting the sensing radius of a coaxial probe based on the probe dimensions 

      La Gioia, Alessandra; Santorelli, Adam; O'Halloran, Martin; Porter, Emily (Institute of Electrical and Electronics Engineers, 2020-05-19)
      The coaxial probe technique is used to acquire the dielectric properties of biological tissues in the microwave frequency range. To dielectrically characterize heterogeneous samples, the sensing radius of the probe must ...
    • A review of the dielectric properties of the bone for low frequency medical technologies 

      Amin, Bilal; Elahi, Muhammad Adnan; Shahzad, Atif; Porter, Emily; O'Halloran, Martin (IOP Publishing, 2019-01-07)
      The dielectric properties are key parameters that quantify the interaction between electromagnetic waves and human biological tissues. In particular, the development of electromagnetic-based medical technologies rely on ...
    • Dielectric characterization of ex vivo ovine and human adrenal glands for microwave thermal ablation applications 

      Bottiglieri, Anna; Shahzad, Atif; Donlon, Padraig; Dennedy, Micheal Conall; Lowery, Aoife; O'Halloran, Martin; Farina, Laura (Institute of Electrical and Electronics Engineers, 2021-01-15)
      Historically, adrenal glands diseases causing hypertension, such as Primary Aldosteronism (PA), have been treated through pharmacotherapy or surgical resection. Given the shortcomings of the available treatment options, ...
    • Microwave bone imaging: A preliminary investigation on numerical bone phantoms for bone health monitoring 

      Amin, Bilal; Shahzad, Atif; O'Halloran, Martin; Elahi, Muhammad Adnan (MDPI, 2020-11-05)
      Microwave tomography (MWT) can be used as an alternative modality for monitoring human bone health. Studies have found a significant dielectric contrast between healthy and diseased human trabecular bones. A set of diverse ...
    • Dielectric characterization of diseased human trabecular bones at microwave frequency 

      Amin, Bilal; Shahzad, Atif; Farina, Laura; Parle, Eoin; McNamara, Laoise; O'Halloran, Martin; Elahi, Muhammad Adnan (Elsevier, 2020-02-07)
      The objective of this study is to determine whether in vitro dielectric properties of human trabecular bones, can distinguish between osteoporotic and osteoarthritis patients' bone samples. Specifically this study enlightens ...
    • Exploiting tissue dielectric properties to shape microwave thermal ablation zones 

      Bottiglieri, Anna; Ruvio, Giuseppe; O’Halloran, Martin; Farina, Laura (MDPI, 2020-07-16)
      The dielectric characterization of tissue targets of microwave thermal ablation (MTA) have improved the efficacy and pre-procedural planning of treatment. In some clinical scenarios the tissue target lies at the interface ...
    • Anthropomorphic calcaneus phantom for microwave bone imaging applications 

      Amin, Bilal; Shahzad, Atif; Kelly, Daniel; O'Halloran, Martin; Elahi, Adnan (Institute of Electrical and Electronics Engineers, 2020-10-09)
      Recent studies have found a significant dielectric contrast between healthy and osteoporotic human trabecular bones. This dielectric contrast can be exploited by microwave imaging for monitoring human bone health. The ...
    • Image-based classification of bladder state using electrical impedance tomography 

      Dunne, Eoghan; Santorelli, Adam; McGinley, Brian; Leader, Geraldine; O'Halloran, Martin; Porter, Emily (IOP Publishing, 2018-12-03)
      Objective: In this study, we examine the potential of using machine learning classification to determine the bladder state ( not full , full ) with electrical impedance tomography (EIT) images of the pelvic region. Accurate ...
    • Heparin as an anticoagulant for the dielectric measurement of blood 

      Dunne, Eoghan; O'Halloran, Martin; Porter, Emily; Bonello, Julian; Farrugia, Lourdes; Sammut, Charles V.; Schembri-Wismayer, Pierre (Institute of Electrical and Electronics Engineers, 2019-01-23)
      Testing blood ex-vivo allows physicians to gain an understanding of what is happening within the human body. Once blood is extracted from the body, it begins to clot. This process can affect the outcome of blood tests, ...