Browsing by Author "Jones, Edward"
Now showing items 21-38 of 38
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A multistage selective weighting method for improved microwave breast tomography
Shahzad, Atif; O'Halloran, Martin; Jones, Edward; Glavin, Martin (Elsevier, 2016-08-24)Microwave tomography has shown potential to successfully reconstruct the dielectric properties of the human breast, thereby providing an alternative to other imaging modalities used in breast imaging applications. Considering ... -
A novel image processing-based system for turbidity measurement in domestic and industrial wastewater
Mullins, Darragh; Coburn, Derek; Hannon, Louise; Jones, Edward; Clifford, Eoghan; Glavin, Martin (IWA Publishing, 2018-01-19)Wastewater treatment facilities are continually challenged to meet both environmental regulations and reduce running costs (particularly energy and staffing costs). Improving the efficiency of operational monitoring at ... -
Parameter search algorithms for microwave radar-based breast imaging: focal quality metrics as fitness functions
O’Loughlin, Declan; Oliveira, Bárbara; Elahi, Muhammad; Glavin, Martin; Jones, Edward; Popović, Milica; O’Halloran, Martin (MDPI AG, 2017-12-06)Inaccurate estimation of average dielectric properties can have a tangible impact on microwave radar-based breast images. Despite this, recent patient imaging studies have used a fixed estimate although this is known to ... -
Performance and robustness of a multistatic mist beamforming algorithm for breast cancer detection
O'Halloran, Martin; Glavin, Martin; Jones, Edward (EMW Publishing, 2010-01-01)Ultra-Wideband (UWB) radar is one of the most promising emerging technologies for the early detection of breast cancer, and the development of robust beamforming algorithms for imaging has been the subject of a significant ... -
Performance of leading artifact removal algorithms assessed across microwave breast imaging prototype scan configurations
Elahi, Muhammad Adnan; Curtis, C.; Lavoie, B.R.; Glavin, Martin; Jones, Edward; Fear, E.; O’Halloran, Martin (Elsevier, 2017-03-02)Microwave imaging is a promising imaging modality for the detection of early-stage breast cancer. One of the most important signal processing components of microwave radar-based breast imaging is early stage artifact ... -
Rotating antenna microwave imaging system for breast cancer detection
O'Halloran, Martin; Glavin, Martin; Jones, Edward (EMW Publishing, 2010-01-01)Breast imaging using Confocal Microwave Imaging (CMI) has becoming a difficult problem, primarily due to the recently-established dielectric heterogeneity of normal breast tissue. CMI for breast cancer detection was ... -
Signal and image processing technology for smart agriculture applications
Hamuda, Esmael Ali (NUI Galway, 2019-04-25)This thesis is concerned with development of signal and image processing technology for smart agriculture applications, with a particular focus on applications in automatic weeding systems. Developing an automatic weeding ... -
Speckle Reduction and Edge Detection in Ultrasound Imagery
Finn, Sean (2010-09-01)This thesis investigates the related topics of speckle reduction and edge detection as applied to speckled ultrasonography. A strategy for the evaluation of speckle filters is presented. This includes their application to ... -
Spiking neural networks for breast cancer classification in a dielectrically heterogeneous breast
O'Halloran, Martin; McGinley, Brian; Conceicao, Raquel Cruz; Morgan, Fearghal; Jones, Edward; Glavin, Martin (EMW Publishing, 2011-01-01)The considerable overlap in the dielectric properties of benign and malignant tissue at microwave frequencies means that breast tumour classification using traditional UWB Radar imaging algorithms could be very problematic. ... -
The effect of blood pressure calibrations and transcranial doppler signal loss on transfer function estimates of cerebral autoregulation
Deegan, Brian M.; Serrador, Jorge M.; Nakagawa, Kazuma; Jones, Edward; Sorond, Farzaneh A.; ÓLaighin, Gearóid (Elsevier BV, 2011-06-01) -
The effects of compression on ultra wideband radar signals
McGinley, Brian; O'Halloran, Martin; Conceicao, Raquel Cruz; Higgins, Garry; Jones, Edward; Glavin, Martin (EMW Publishing, 2011-01-01)Over the past ten years, Ultra Wideband (UWB) Radar has been widely investigated as a biomedical imaging modality, used to detect early-stage breast cancer and to continuously monitor vital signs using both wearable and ... -
The potential of time-multiplexed steering in phased array microwave hyperthermia for head and neck cancer treatment
Cappiello, Grazia; Drizdal, Tomas; McGinley, Brian; O'Halloran, Martin; Glavin, Martin; van Rhoon, Gerard C; Jones, Edward; Paulides, Margarethus Marius (IOP Publishing, 2018-06-04)Clinical studies have shown that hyperthermia sensitizes tumor cells for conventional therapies. During phased-array microwave hyperthermia, an array of antennas is used to focus the electromagnetic waves at the target ... -
Topology preserving and robust variational image segmentation models with applications in medical imaging
Duggan, Noirin (2015-07-14)Computer vision refers to the process of enabling computers to mimic the human visual system. The central concern of this thesis is a sub-task of computer vision known as image segmentation, which refers to the decomposition ... -
Towards improved breast cancer diagnosis using microwave technology and machine learning
Oliveira, Bárbara Luz (NUI Galway, 2018-09-28)Today, the early detection of breast cancer for asymptomatic women primarily relies on generalised screening programmes with x-ray mammography. However, the long-term value of screening mammography has been questioned due ... -
Towards improved treatment planning for head and neck microwave hyperthermia
Cappiello, Grazia (NUI Galway, 2019-10-08)Hyperthermia is an emerging cancer treatment modality which involves applying heat to the malignant tumor. The heating can be delivered using electromagnetic energy, mostly in the radiofrequency or microwave range. Accurate ... -
Ultrawideband Radar for the Early Detection of Cancer Within the Heterogeneous Breast
Byrne, Dallan (2012-01-18)Ultrawideband (UWB) microwave imaging is an emerging breast screening modality based on the electromagnetic reflections generated by the dielectric contrast between soft tissue types within the breast at microwave ... -
Using image processing for determination of settled sludge volume
Mullins, Darragh; Coburn, Derek; Hannon, Louise; Jones, Edward; Clifford, Eoghan; Glavin, Martin (IWA Publishing, 2018-07-12)Determination of the sludge volume index is key to describing the settling characteristics of sludge in the aeration process of wastewater treatment plants (WWTPs). The two core components of this calculation are the settled ... -
Vision Algorithms and Systems for Vehicle and Pedestrian Detection in Night Time Conditions Using Vehicle Mounted Cameras
O'Malley, Ronan (2011-08-24)Statistics show that a disproportionate amount of road fatalities occur at night-time despite the greatly reduced volume of traffic on roads. This thesis describes a system aimed at addressing this issue by automatically ...