Browsing by Author "Kyriacou, Efthyvoulos C."

Now showing items 1-20 of 89

    • Conference Object  

      Abdominal Aortic Aneurysm medical video transmission 

      Panayides, Andreas S.; Antoniou, Zinonas C.; Barberis, Vassilis I. I.; Pattichis, Marios S.; Pattichis, Constantinos S.; Kyriacou, Efthyvoulos C. (2012)
      Abdominal Aortic Aneurysm (AAA) is responsible for approximately 1.3% of all deaths among men over the age of 65. Given the fact that once an aortic rupture occurs mortality rates are estimated between 80%-90%, national ...
    • Conference Object  

      Adaptive emergency scenery video communications using HEVC for responsive decision support in disaster incidents 

      Antoniou, Zinonas C.; Panayides, Andreas S.; Pattichis, Marios S.; Stavrou, S.; Kyriacou, Efthyvoulos C.; Spanias, Andreas S.; Constantinides, Anthony G.; Pattichis, Constantinos S. (Institute of Electrical and Electronics Engineers Inc., 2015)
      This study proposes a unifying framework for m-Health video communication systems that provides for the joint optimization of video quality, bitrate demands, and encoding time. The framework is video modality and infrastructure ...
    • Conference Object  

      Adaptive real-time HEVC encoding of emergency scenery video 

      Panayides, Andreas S.; Constantinides, Anthony G.; Pattichis, Marios S.; Kyriacou, Efthyvoulos C.; Pattichis, Constantinos S. (Institute of Electrical and Electronics Engineers Inc., 2015)
      This paper proposes the use of an adaptive HEVC encoding framework for the wireless transmission of real-time emergency scenery video. The goal of the proposed approach is to adapt HEVC encoding methods and parameters so ...
    • Conference Object  

      An AM-FM model for motion estimation in atherosclerotic plaque videos 

      Murray, V.; Murillo, S. E.; Pattichis, Marios S.; Loizou, Christos P.; Pattichis, Constantinos S.; Kyriacou, Efthyvoulos C.; Nicolaïdes, Andrew N. (2007)
      We present new multidimensional Amplitude-Modulation Frequency-Modulation (AM-FM) methods for motion estimation. For a single AM-FM component we show that the optical flow constraint leads to separate equations for amplitude ...
    • Book Chapter  

      Assessment of stroke by analysing carotid plaque morphology 

      Kyriacou, Efthyvoulos C.; Christodoulou, Christodoulos I.; Loizou, Christos P.; Pattichis, Marios S.; Pattichis, Constantinos S.; Kakkos, Stavros K.; Nicolaïdes, Andrew N. (IGI Global, 2009)
      Stroke is the third leading cause of death in the Western world and a major cause of disability in adults. The objective of this work was to investigate morphological feature extraction techniques and the use of automatic ...
    • Article  

      Assessment of stroke risk based on morphological ultrasound image analysis with conformal prediction 

      Lambrou, Alexandra; Papadopoulos, Harris; Kyriacou, Efthyvoulos C.; Pattichis, Constantinos S.; Pattichis, Marios S.; Gammerman, A.; Nicolaïdes, Andrew N. (2010)
      Non-invasive ultrasound imaging of carotid plaques allows for the development of plaque image analysis in order to assess the risk of stroke. In our work, we provide reliable confidence measures for the assessment of stroke ...
    • Conference Object  

      Atherosclerotic plaque motion analysis from ultrasound videos 

      Murillo, S. E.; Pattichis, Marios S.; Loizou, Christos P.; Pattichis, Constantinos S.; Kyriacou, Efthyvoulos C.; Constantinides, Anthony G.; Nicolaïdes, Andrew N. (2006)
      In this paper, we describe a collection of algorithms that are used to provide motion trajectory estimates from atherosclerotic plaque ultrasound videos. Our approach is based on the use of four different optical flow ...
    • Article  

      Brain white matter lesion classification in multiple sclerosis subjects for the prognosis of future disability 

      Loizou, Christos P.; Kyriacou, Efthyvoulos C.; Seimenis, Ioannis; Pantzaris, Marios C.; Petroudi, Styliani; Karaolis, Minas A.; Pattichis, Constantinos S. (2013)
      This study investigates the application of classification methods for the prognosis of future disability on MRI-detectable brain white matter lesions in subjects diagnosed with clinical isolated syndrome (CIS) of multiple ...
    • Article  

      Brain white matter lesions classification in multiple sclerosis subjects for the prognosis of future disability 

      Loizou, Christos P.; Kyriacou, Efthyvoulos C.; Seimenis, Ioannis; Pantzaris, Marios C.; Christodoulou, Chris C.; Pattichis, Constantinos S. (2011)
      This study investigates the application of classification methods for the prognosis of future disability on MRI-detectable brain white matter lesions in subjects diagnosed with clinical isolated syndrome (CIS) of multiple ...
    • Conference Object  

      A brief overview of m-health e-emergency systems 

      Pattichis, Constantinos S.; Kyriacou, Efthyvoulos C.; Pattichis, Marios S.; Panayides, Andreas S.; Mougiakakou, Stavroula Gr; Pitsillides, Andreas; Schizas, Christos N. (2008)
      Rapid advances in wireless communications and networking technologies, linked with advances in computing and medical technologies facilitate the development and offering of emerging mobile systems and services in the ...
    • Article  

      Classification of atherosclerotic carotid plaques using gray level morphological analysis on ultrasound images 

      Kyriacou, Efthyvoulos C.; Pattichis, Constantinos S.; Pattichis, Marios S.; Mavrommatis, A.; Panagiotou, S.; Christodoulou, Christodoulos I.; Kakkos, Stavros K.; Nicolaïdes, Andrew N. (2006)
      The aim of this study was to investigate the usefulness of gray scale morphological analysis in the assessment of atherosclerotic carotid plagues. Ultrasound images were recorded from 137 asymptomatic and 137 symptomatic ...
    • Article  

      Classification of atherosclerotic carotid plaques using morphological analysis on ultrasound images 

      Kyriacou, Efthyvoulos C.; Pattichis, Marios S.; Pattichis, Constantinos S.; Mavrommatis, A.; Christodoulou, Christodoulos I.; Kakkos, Stavros K.; Nicolaïdes, Andrew N. (2009)
      The aim of this study was to investigate the usefulness of multilevel binary and gray scale morphological analysis in the assessment of atherosclerotic carotid plaques. Ultrasound images were recorded from 137 asymptomatic ...
    • Conference Object  

      Color based texture - Classification of hysteroscopy images of the endometrium 

      Neofytou, Marios S.; Tanos, Vasilios; Pattichis, Marios S.; Pattichis, Constantinos S.; Kyriacou, Efthyvoulos C.; Pavlopoulos, Sotirios A. (2007)
      The objective of this study was to develop a CAD system for the classification of hysteroscopy images of the endometrium based on color texture analysis for the early detection of gynaecological cancer. A total of 416 ...
    • Conference Object  

      Color multiscale texture classification of hysteroscopy images of the endometrium 

      Neofytou, Marios S.; Tanos, Vasilios; Pattichis, Marios S.; Kyriacou, Efthyvoulos C.; Pattichis, Constantinos S.; Schizas, Christos N. (2008)
      The objective of this study was to investigate the diagnostic performance of a Computer Aided Diagnostic (CAD) system based on color multiscale texture analysis for the classification of hysteroscopy images of the endometrium, ...
    • Article  

      A comparative study of morphological and other texture features for the characterization of atherosclerotic carotid plaques 

      Christodoulou, Christodoulos I.; Kyriacou, Efthyvoulos C.; Pattichis, Marios S.; Pattichis, Constantinos S.; Nicolaïdes, Andrew N. (2003)
      The extraction of features characterizing the structure of atherosclerotic carotid plaques, obtained by high-resolution ultrasound imaging is important for the correct plaque classification and the estimation of the risk ...
    • Article  

      A Comparison of Ultrasound Intima-Media Thickness Measurements of the Left and Right Common Carotid Artery 

      Loizou, Christos P.; Nicolaïdes, Andrew N.; Kyriacou, Efthyvoulos C.; Georghiou, N.; Griffin, Maura B.; Pattichis, Constantinos S. (2015)
      The intima-media thickness (IMT) of the common carotid artery (CCA) is an established indicator of cardiovascular disease (CVD). There have been reports about the difference between the left and the right sides of the CCA ...
    • Article  

      Computer-aided diagnosis in hysteroscopic imaging 

      Neofytou, Marios S.; Tanos, Vasilios; Constantinou, Ioannis P.; Kyriacou, Efthyvoulos C.; Pattichis, Marios S.; Pattichis, Constantinos S. (2015)
      The paper presents the development of a computeraided diagnostic (CAD) system for the early detection of endometrial cancer. The proposed CAD system supports reproducibility through texture feature standardization, ...
    • Article  

      Computerized texture analysis of carotid plaque ultrasonic images can identify unstable plaques associated with ipsilateral neurological symptoms 

      Kakkos, Stavros K.; Nicolaïdes, Andrew N.; Kyriacou, Efthyvoulos C.; Daskalopoulou, Stella Styliani; Sabetai, Michael; Pattichis, Constantinos S.; Geroulakos, George; Griffin, Maura B.; Thomas, Dominique (2011)
      We estimated the value of objective, computerized texture analysis of ultrasonic images in distinguishing carotid plaques associated with neurological ipsilateral symptoms (amaurosis fugax [AmF
    • Article  

      Continuous monitoring of children with suspected cardiac arrhythmias 

      Kyriacou, Efthyvoulos C.; Kounoudes, A.; Paraskeva, Loucas; Konstantinides, A.; Pattichis, Constantinos S.; Jossif, Antonis P.; Pattichis, Marios S.; Vogiatzis, Dimitrios G. (2009)
      Advances in wireless communications and networking technologies as well as computer and medical technologies, enable the development of small size, power efficient and more reliable medical multi-parameter recording systems, ...
    • Conference Object  

      De-speckle filtering in ultrasound imaging of the carotid artery 

      Christodoulou, Christodoulos I.; Loizou, Christos P.; Pattichis, Constantinos S.; Pantzaris, Marios C.; Kyriacou, Efthyvoulos C.; Pattichis, Marios S.; Schizas, Christos N.; Nicolaïdes, Andrew N. (2002)
      The main objective of this paper is to evaluate the classification performance of de-speckle filtering on ultrasound imaging of the carotid atherosclerotic plaque. The following procedure was investigated on 230 images ...