Now showing items 2-11 of 11

  • Coding of biosignals using the discrete wavelet decomposition 

    Reig Bolano, Ramon; Marti Puig, Pere; Solé-Casals, Jordi; Zaiats, Vladimir; Parisi Baradad, Vicenç (Springer, 2009)
    Conference report
    Restricted access - publisher's policy
    Wavelet derived codification techniques are widespread used in image codifiers. The wavelet based compression methods are adequate for representing transients. In this paper we explore the use of the discrete wavelet transform ...
  • Compressió de memòria per a la millora de l'eficiència energètica 

    Zhu Wang, Liang Xiao (Universitat Politècnica de Catalunya, 2008-07-04)
    Master thesis (pre-Bologna period)
    Open Access
  • Data compression of natural signals based on discrete wavelet transform analysis 

    Reig Bolano, Ramon; Marti Puig, Pere; Solé-Casals, Jordi; Parisi Baradad, Vicenç (2009)
    Conference report
    Restricted access - publisher's policy
    In this paper we explore the use of the discrete wavelet transform analysis of an arbitrary signal in order to improve the data compression capability of data coders. Wavelet analysis is widespread used in image codifiers, ...
  • Evaluación de un algoritmo de compresión de datos en arquitectura Cell 

    García Fernández, Alberto (Universitat Politècnica de Catalunya, 2010-05-21)
    Master thesis (pre-Bologna period)
    Open Access
    La finalidad de este proyecto es estudiar y experimentar con la arquitectura Cell BE comercializada por IBM. Actualmente existen muchos fabricantes de procesadores, que a su vez presentan multiples arquitecturas al ...
  • Feasibility study of the PEC compressor in HDFS file format 

    Estepa Sánchez, Carlos (Universitat Politècnica de Catalunya, 2011-11-15)
    Master thesis (pre-Bologna period)
    Open Access
    English: Improvement of the astrometric format GBIN using HFG5+ PEC.
  • (La imposibilidad de) el compresor infinito 

    García Quiles, Pau (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 2003)
    Article
    Open Access
  • Improving web server performance through main memory compression 

    Beltran Querol, Vicenç; Torres Viñals, Jordi; Ayguadé Parra, Eduard (IEEE Computer Society, 2008)
    Conference lecture
    Open Access
    Current web servers are highly multithreaded applications whose scalability benefits from the current multicore/multiprocessor trend. However, some workloads can not capitalize on this because their performance is limited by ...
  • Modulo compresor/encriptador para datacenters 

    Martínez Pérez, Ivan (Universitat Politècnica de Catalunya, 2014-06-26)
    Bachelor thesis
    Open Access
    Propuesta de diseño hardware y software de un módulo compresor/encriptador de datos. La solución software viene acompañada de una implementación en C++.
  • Progressive encoding with non-linear source codes for compression of low-entropy sources 

    Ramírez Javega, Francisco; Lamarca Orozco, M. Meritxell; García Frías, Javier (2010)
    Conference report
    Open Access
    We propose a novel scheme for source coding of non-uniform memoryless binary sources based on progressively encoding the input sequence with non-linear encoders. At each stage, a number of source bits is perfectly recovered, ...
  • S3Dc: a 3Dc-based volume compression algorithm 

    Yela Reneses, Héctor; Navazo Álvaro, Isabel; Vázquez Alcocer, Pere Pau (Eurographics association, 2008)
    Conference report
    Restricted access - publisher's policy
    Volumes acquired for medical purposes are continuously increasing in size, faster than graphic cards memory capacity. Large volumetric datasets do not fit into GPU memory and therefore direct rendering is not possible. ...