Now showing items 1-12 of 82

  • Técnicas de preprocesado para la segmentación de imágenes 

    Gasull Llampallas, Antoni; Marqués Acosta, Fernando; Montolio, P.; Torres Urgell, Lluís (Universidad de Málaga, 1992)
    Conference report
    Open Access
  • Security and Privacy in a DACS 

    Delgado Mercè, Jaime; Llorente Viejo, Silvia; Pàmies Solà, Martí; Vilalta Marzo, Josep (IOS Press, 2016)
    Conference report
    Restricted access - publisher's policy
    The management of electronic health records (EHR), in general, and clinical documents, in particular, is becoming a key issue in the daily work of Healthcare Organizations (HO). The need for providing secure and private ...
  • Protecting privacy of genomic information 

    Delgado Mercè, Jaime; Llorente Viejo, Silvia; Naro, Daniel (IOS Press, 2017)
    Conference report
    Open Access
    The ISO/IEC committee in charge of standardizing the well-known MPEG audiovisual standards has launched, in cooperation with the ISO committee on Biotechnology, a new activity for efficient compressed storage and transmission ...
  • Morphological interpolation for texture coding 

    Casas Pla, Josep Ramon; Salembier Clairon, Philippe Jean; Torres Urgell, Lluís (. S.N., 1995)
    Conference report
    Open Access
    In this paper a new morphological interpolation technique is presented. It is applied to the coding of the smooth (primary) component in a sketch-based image compression approach for very low bit-rates. The interpolation ...
  • A simple and efficient face detection algorithm for video database applications 

    Albiol, A; Torres Urgell, Lluís; Delp, E; Bouman, C (Institute of Electrical and Electronics Engineers (IEEE), 2000)
    Conference report
    Open Access
    The objective of this work is to provide a simple and yet efficient tool to detect human faces in video sequences. This information can be very useful for many applications such as video indexing and video browsing. In ...
  • Automatic face recognition of video sequences using self-eigenfaces 

    Torres Urgell, Lluís; Lorente, Luis; Vilà Guerau de Arellano, Jordi (-, 2000)
    Conference report
    Open Access
    The objective of this work is to provide an efficient face recognition scheme useful for video indexing applications. In particular we are addressing the following problem: given a set of known images and given a video ...
  • Score extraction usign MPEG-4 T/F partial encoding 

    Tarrés Ruiz, Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2000)
    Conference report
    Open Access
    This paper describes the preliminary work in the development of an MPEG-4 audio transcoder between the time/frequency (T/F) and the structured audio (SA) formats. Our approach consists in not going from T/F format through ...
  • DSP-based ionospheric radiolink using DS-CDMA and on-line channel estimation 

    Pijoan, J L; Socor, J C; Moran, J A; Tarrés Ruiz, Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2000)
    Conference report
    Open Access
    In this paper, a new blind multiuser detection algorithm is presented. It can both cancel multiuser interference and estimate the multipath channel response in a blind way. The method has been specially conceived for low ...
  • New trends in image and video compression 

    Torres Urgell, Lluís (Eurasip, 2000)
    Conference report
    Open Access
    Image and video compression have been the object of intensive research in the last thirty years. The field is now mature as is proven by the large number of applications that make use of this technology. Digital Video ...
  • New receivers for DS-SS in time variant multipath channels based on the PN alignment concept 

    Socoro, J; Pijoan, J L; Moran, J A; Tarrés Ruiz, Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2000)
    Conference report
    Open Access
    We present new combined blind equalization and detection schemes for a DS-SS system. The new proposed algorithms improve the bit error rate compared to traditional RAKE receivers in time-variant channels with multipath. ...
  • A contribution to video coding using layers 

    Torres Urgell, Lluís; Lecha, M (1998)
    Conference report
    Open Access
    Layered representations of video sequences, originally introduced in [1], are important in several applications. Specifically, they are very appropriate for object tracking, object manipulation, content-based scalability ...
  • An experimental course on digital communications 

    Bertran Albertí, Eduardo; Tarrés Ruiz, Francisco; Montoro López, Gabriel (IEEE PRESS, 1998)
    Conference report
    Open Access
    In this paper a laboratory course on digital communications is presented. This course has been designed for medium degree professionals in the telecommunications field, and it is based on training equipment developed to ...