Browsing by Subject "Image processing"

Now showing items 1-20 of 25

    • Conference Object  

      Adaptive noise canceling and edge detection in images using PVM on a NOW 

      Mylonas, S. A.; Trancoso, Pedro; Trimikliniotis, Michael (IEEE, 2000)
      A method for the processing of digital images using a two-dimensional LMS adaptive filter for noise reduction and subsequent edge detection is presented. This was implemented on a Parallel Virtual Machine (PVM) consisting ...
    • Conference Object  

      AM-FM representations for the characterization of carotid plaque ultrasound Images 

      Christodoulou, Christodoulos I.; Pattichis, Constantinos S.; Murray, V.; Pattichis, Marios S.; Nicolaïdes, Andrew N. (2008)
      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 the use of AM-FM representations for the characterization of carotid ...
    • Article  

      Artifacts in spiral CT protocols: The importance of the spatial reconstruction 

      Lavdas, Eleftherios; Vlychou, M.; Roka, V.; Wozniak, Greta; Protogerou, G.; Fezoulidis, Ioannis (2009)
      Purpose: This study recorded and analysed streak and motion artifacts in spiral CT examinations and evaluated the elimination and minimization of them by the use of segmental reconstruction with and without alterations of ...
    • Conference Object  

      Biologically inspired region of interest selection for low bit-rate video coding 

      Tsapatsoulis, Nicolas; Pattichis, Constantinos S.; Rapantzikos, K. (2006)
      A variety of approaches have been proposed in the literature for Region-Of-Interest (ROI) estimation. In most of them the ROI definition is highly subjective, i.e., lacks scientific evidence in supporting the claim that ...
    • Conference Object  

      Challenges in electronic roads in the information society: content-based image retrieval and IP DiffServ 

      Mylonas, Yiannos; Pattichis, Constantinos S.; Pitsillides, Andreas; Panis, Stathis (IEEE, 2000)
      The objective of this study is to address some technological challenges that we faced within the Electronic Roads in the Information Society (ERIS) project. The main task of ERIS is to investigate an approach for dynamic ...
    • Article  

      Comparative evaluation of despeckle filtering in ultrasound imaging of the carotid artery 

      Loizou, Christos P.; Pattichis, Constantinos S.; Christodoulou, Christodoulos I.; Istepanian, Robert Sh Habib; Pantzaris, Marios C.; Nicolaïdes, Andrew N. (2005)
      It is well-known that speckle is a multiplicative noise that degrades the visual evaluation in ultrasound imaging. The recent advancements in ultrasound instrumentation and portable ultrasound devices necessitate the need ...
    • Conference Object  

      Completely automated multiresolution edge snapper (CAMES): A new technique for an accurate carotid ultrasound IMT measurement and its validation on a multi-institutional database 

      Molinari, F.; Loizou, Christos P.; Zeng, G.; Pattichis, Constantinos S.; Pantzaris, Marios C.; Liboni, W.; Nicolaïdes, Andrew N.; Suri, J. S. (2011)
      Since 2005, our research team has been developing automated techniques for carotid artery (CA) wall segmentation and intima-media thickness (IMT) measurement. We developed a snake-based technique (which we named CULEX 1,2), ...
    • Article  

      The contribution of active and inactive structures to the statistics of a turbulent pipe flow 

      Stylianou, F. S.; Kassinos, Stavros C. (2017)
      The current study is a short follow-up to our most recent work (Stylianou et al., 2016), where among other things we have presented an effective criterion suitable for distinguishing large-scale coherent structures with ...
    • Conference Object  Open Access

      An e-learning framework For wound image understanding 

      Prodan, Augustin; Câmpean, Remus; Rusu, Madalina; Prodan, Rodica (University of Cyprus, 2007)
      This paper presents a Java based e-learning framework for analyzing, processing and understanding wound images, to be used in teaching, learning and research activities. We intend to promote e-learning technologies in ...
    • Article  

      Fine art painting characterization by spectroscopic ellipsometry: Preliminary measurements on varnish layers 

      Christofides, Constantinos; Castellon, B.; Othonos, Andreas S.; Polikreti, Kyriaki; De Deyne, C. (2004)
      The long-term conservation of the original state of paintings requires high quality multi-spectral digital image technologies. CRISATEL Program addresses fine art professionals as primary end-users base. The analysis by ...
    • Article  

      Multilevel characterizations of anisotropic function spaces 

      Kyriazis, George C. (2005)
      We present a general method for extending decomposition systems of L 2(ℝd) to decomposition systems for the anisotropic Triebel-Lizorkin and Besov spaces, Fp,qα,s and Bp,qα,s, respectively, for the full range of the indexes. ...
    • Conference Object  

      New image processing models for opacity image analysis in chest radiographs 

      Pattichis, Marios S.; Muralldharan, H.; Pattichis, Constantinos S.; Soliz, P. (Institute of Electrical and Electronics Engineers Inc., 2002)
      The aim of this research is to develop new image processing models that can be used to characterize single opacities and opacity density within pre-selected regions of interest (ROI). We derive our new image processing ...
    • Conference Object  

      Numerical modeling of turbulent airflow and particle deposition in a bifurcating airway model 

      Radhakrishnan, H.; Kassinos, Stavros C. (Affiliation: UCY-CompSci Computational Sciences Laboratory, Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, CyprusCorrespondence Address: Radhakrishnan, H.UCY-CompSci Computational Sciences Laboratory, Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, Cyprus, 2009)
      Understanding transport and deposition of inhaled particles in the human airways plays a crucial role in the targeted therapy of pulmonary diseases, and the administration of inhaled medicines. Numerous researchers have ...
    • Conference Object  

      Optical sensors for urban search and rescue operations 

      Mäyrä, A. P.; Agapiou, Agapios; Hildebrand, L.; Ojala, K. M.; Mikedi, Katerina; Statheropoulos, Miltiades K. (2011)
      The Second Generation Locator for Urban Search and Rescue Operations (SGL for USaR) is an EC-funded project solving critical problems following massive destruction and large scale structural collapses in urban locations. ...
    • Doctoral Thesis  Open Access

      Physically-based probabilistic image segmentation 

      Ladas, Nikolas A. (Πανεπιστήμιο Κύπρου, Σχολή Θετικών και Εφαρμοσμένων Επιστημών / University of Cyprus, Faculty of Pure and Applied Sciences, 2020-05)
      Η κατάτμηση εικόνας αποτελεί μια σημαντική διαδικασία στο χώρο της επεξεργασίας εικόνας και περιλαμβάνει τον εντοπισμό αντικειμένων, την παρακολούθηση αντικειμένων και την επεξεργασία εικόνας. Αυτοί οι αλγόριθμοι είναι ...
    • Conference Object  

      The promise of big data technologies and challenges for image and video analytics in healthcare 

      Panayides, Andreas S.; Pattichis, Constantinos S.; Pattichis, Marios S. (IEEE Computer Society, 2017)
      There is a growing need for developing fast and scalable methods for storing and processing large databases of healthcare images and videos. The paper reviews current medical image analysis techniques and the recent ...
    • Conference Object  

      Quality evaluation of ultrasound imaging in the carotid artery 

      Loizou, Christos P.; Pattichis, Constantinos S.; Istepanian, Robert Sh Habib; Pantzaris, Marios C.; Tyllis, Theodosis K.; Nicolaïdes, Andrew N. (2004)
      Image quality assessment plays an important role in various image-processing applications. In this work we evaluate image quality criteria based on mean square error, signal to noise error, and quality and structural ...
    • Conference Object  

      Reliable hysteroscopy color imaging 

      Constantinou, Ioannis P.; Tanos, Vasilios; Neofytou, Marios S.; Pattichis, Constantinos S. (2010)
      The aim of this study was to investigate the reliability of two hysteroscopy cameras, the Circon IP 4 and Karl Storz HD, in relation to white balance, camera response over time, and color correction. Experimental results, ...
    • Doctoral Thesis  

      Shadow computation for 3D interaction and animation. 

      Chrysanthou, Yiorgos L. (University of London, 1996)
    • Article  

      A Simple Information Theoretic Proof of the Maximum Entropy Property of Some Gaussian Random Fields 

      Politis, Dimitris Nicolas (1994)
      A well known result of Burg and Kiinsch identifies a Gaussian Markov random field with autocovariances specified on a finite part L of the n-dimensional integer lattice, as the random field with maximum entropy among all ...