Browsing by Subject "Image coding"

Now showing items 1-14 of 14

    • 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 feedback algorithm for internet video streaming based on fuzzy rate control 

      Antoniou, Pavlos Ch.; Pitsillides, Andreas; Vassiliou, Vasos (2007)
      It is beyond any doubt that the unpredictable nature of the today's Internet has tremendous impact on the transmission of video streams. With respect to the real-time nature of video streaming, unpredictable band-width, ...
    • Article  

      Atherosclerotic plaque ultrasound video encoding, wireless transmission, and quality assessment using H.264 

      Panayides, Andreas S.; Pattichis, Marios S.; Pattichis, Constantinos S.; Loizou, Christos P.; Pantzaris, Marios C.; Pitsillides, Andreas (2011)
      We propose a unifying framework for efficient encoding, transmission, and quality assessment of atherosclerotic plaque ultrasound video. The approach is based on a spatially varying encoding scheme, where video-slice ...
    • 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  

      Despeckle filtering in ultrasound video of the common carotid artery 

      Loizou, Christos P.; Kasparis, Takis; Christodoulides, Paul; Theofanous, Charoula; Pantzaris, Marios C.; Kyriacou, Efthyvoulos C.; Pattichis, Constantinos S. (2012)
      Noise reduction is essential for increasing the visual quality or as a preprocessing step for further automated analysis in video sequences and video coding. The objective of this work was to investigate four different ...
    • Article  

      An embedded saliency map estimator scheme: Application to video encoding 

      Tsapatsoulis, Nicolas; Rapantzikos, K.; Pattichis, Constantinos S. (2007)
      In this paper we propose a novel saliency-based computational model for visual attention. This model processes both top-down (goal directed) and bottom-up information. Processing in the top-down channel creates the so ...
    • Conference Object  

      High efficiency video coding for ultrasound video communication in m-health systems 

      Panayides, Andreas S.; Antoniou, Zinonas C.; Pattichis, Marios S.; Pattichis, Constantinos S.; Constantinides, Anthony G. (2012)
      Emerging high efficiency video compression methods and wider availability of wireless network infrastructure will significantly advance existing m-health applications. For medical video communications, the emerging video ...
    • Article  

      LQG optimality and separation principle for general discrete time partially observed stochastic systems over finite capacity communication channels 

      Charalambous, Charalambos D.; Farhadi, A. (2008)
      This paper is concerned with control of stochastic systems subject to finite communication channel capacity. Necessary conditions for reconstruction and stability of system outputs are derived using the Information ...
    • Conference Object  

      On the fixed point problem in the abstract rate distortion theory 

      Rezaei, F.; Ahmed, N. U.; Charalambous, Charalambos D. (University of Illinois at Urbana-Champaign, Coordinated Science Laboratory and Department of Computer and Electrical Engineering, 2006)
      This paper introduces a general framework for dealing with the subject of rate distortion or source coding with fidelity criterion, in Polish spaces. The problem is ad-dressed using a variational approach on the space of ...
    • Conference Object  

      Region of interest video coding for low bit-rate transmission of carotid ultrasound videos over 3G wireless networks 

      Tsapatsoulis, Nicolas; Loizou, Christos P.; Pattichis, Constantinos S. (2007)
      Efficient medical video transmission over 3G wireless is of great importance for fast diagnosis and on site medical staff training purposes. In this paper we present a region of interest based ultrasound video compression ...
    • Article  

      Requirements for the transmission of streaming video in mobile wireless networks 

      Vassiliou, Vasos; Antoniou, Pavlos Ch.; Giannakou, Iraklis; Pitsillides, Andreas (2006)
      The ability to transmit video and support related real-time multimedia applications is considered important in mobile networks. Video streaming, video conferencing, online interactive gaming, and mobile TV are only a few ...
    • Conference Object  

      Robust and efficient ultrasound video coding in noisy channels using H.264 

      Panayides, Andreas S.; Pattichis, Marios S.; Pattichis, Constantinos S.; Loizou, Christos P.; Pantzaris, Marios C.; Pitsillides, Andreas (2009)
      In this paper we define diagnostic Regions of Interest (ROIs) for carotid ultrasound medical video, which we then use as input for Flexible Macroblock Ordering (FMO) slice encoding. We extend the FMO concept by enabling ...
    • Conference Object  

      The use of H.264/AVC and the emerging high efficiency video coding (HEVC) standard for developing wireless ultrasound video telemedicine systems 

      Panayides, Andreas S.; Antoniou, Zinonas C.; Pattichis, Marios S.; Pattichis, Constantinos S. (2012)
      For wireless medical video communications, the emerging high-efficiency video coding (HEVC) standard and network standards support low-delay and high-resolution video transmission, at the clinically acquired resolution and ...
    • Conference Object  

      Wireless medical ultrasound video transmission through noisy channels 

      Panayides, Andreas S.; Pattichis, Marios S.; Pattichis, Constantinos S. (2008)
      Recent advances in video compression such as the current state-of-the-art H.264/AVC standard in conjunction with increasingly available bitrate through new technologies like 3G, and WiMax have brought mobile health (m-Health) ...