Now showing items 1-20 of 293

  • 3D joint speaker position and orientation tracking with particle filters 

    Segura, Carlos; Hernando Pericás, Francisco Javier (2014-01-29)
    Article
    Open Access
    This paper addresses the problem of three-dimensional speaker orientation estimation in a smart-room environment equipped with microphone arrays. A Bayesian approach is proposed to jointly track the location and orientation ...
  • 3D point cloud segmentation using a fully connected conditional random field 

    Lin, Xiao; Casas Pla, Josep Ramon; Pardàs Feliu, Montse (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference lecture
    Restricted access - publisher's policy
    Traditional image segmentation methods working with low level image features are usually difficult to adapt to higher level tasks, such as object recognition and scene understanding. Object segmentation emerges as a new ...
  • A bit more on the ability of adaptation of speech signals 

    Ballesteros, Dora Maria; Moreno Aróstegui, Juan Manuel (2013-03)
    Article
    Open Access
    Some traditional digital signal processing techniques encompass enhancement, filtering, coding, compression, detection and recognition. Recently, it has been presented a new hypothesis of signal processing known as the ...
  • A block adaptive pyramid coding system 

    Sallent Ribes, Sebastián; Torres Urgell, Lluís; Triola Espigulé, Albert (1988)
    Conference report
    Open Access
    In this paper we present a new block adaptive coding scheme which uses non-rectangular Laplacian Pyramid Algorithms. The proposed method JB adapted to the local image contents. The original image is broken into subimages ...
  • A continuously adaptive vector predictive coder (AVPC) for speech encoding 

    Masgrau Gómez, Enrique José; Mariño Acebal, José Bernardo; Vallverdú Bayés, Sisco (Institute of Electrical and Electronics Engineers (IEEE), 1986)
    Conference report
    Open Access
    In this work we present a waveform speech coding system including vector quantization. This system can be seen as a vector version of the scalar ADPCM speech coder. In such system the speech samples are grouped in vectors ...
  • Acoustic event detection: SVM-based system and evaluation setup in CLEAR’07 

    Temko, Andrey A.; Nadeu Camprubí, Climent; Isaac, Joan Biel (2008)
    Article
    Open Access
    In this paper, the Acoustic Event Detection (AED) system developed at the UPC is described, and its results in the CLEAR evaluations carried out in March 2007 are reported. The system uses a set of features composed of ...
  • Acoustic feature prediction from semantic features for expressive speech using deep neural networks 

    Jauk, Igor; Bonafonte Cávez, Antonio; Pascual, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Restricted access - publisher's policy
    The goal of the study is to predict acoustic features of expressive speech from semantic vector space representations. Though a lot of successful work was invested in expressiveness analysis and prediction, the results ...
  • Actuator fault-tolerant control based on set separation 

    Ocampo-Martínez, Carlos; de Doná, José Adrian; Serón, María (2010-12)
    Article
    Open Access
    In this paper, an actuator fault-tolerant control (FTC) strategy based on set separation is presented. The proposed scheme employs a standard configuration consisting of a bank of observers which match the different fault ...
  • Adaptive array beamforming for frequency hopping modulation 

    Nájar Martón, Montserrat; Lagunas Hernandez, Miguel A. (1996)
    Conference report
    Open Access
    A new architecture for Array Processing using Frequency Hopping (FH) modulation is addressed in this paper which takes advantage of the knowledge of the frequency sequence at the receiver, requiring neither temporal nor ...
  • Adaptive beamforming with temporal and spatial references in satellite communications 

    Fernández Rubio, Juan Antonio (1990)
    Conference report
    Open Access
  • Adaptive blind equalization and demodulation without channel and signal parameter extraction 

    Sala Álvarez, José; Vázquez Grau, Gregorio (1994)
    Conference report
    Open Access
    The problem of filtering a source of known statistics in noise and/or interference of unknown statistics is addressed in this paper. In a general framework, the optimum estimation (detection) of the desired signal requires ...
  • Adaptive Digital Beam-Forming for High-Resolution Wide-Swath Synthetic Aperture Radar 

    Makhoul Varona, Eduardo (Universitat Politècnica de Catalunya, 2009-06-29)
    Master thesis (pre-Bologna period)
    Open Access
    Covenantee:  Deutsches Zentrum für Luft-und Raumfahrt
    The thesis “Adaptive Digital Beam-Forming for High-Resolution Wide-Swath Synthetic Aperture Radar” is a project carried out in the Microwaves and Radar Institute (IHR) at the German Aerospace Center (DLR) The objective ...
  • Adaptive media content architecture regarding users capabilities 

    Cuenca Gil, David (Universitat Politècnica de Catalunya, 2009-06-18)
    Master thesis (pre-Bologna period)
    Open Access
  • Adaptive prediction and bit-assignment in subband coding of speech 

    Mariño Acebal, José Bernardo; Martí Ros, Jaume (1985)
    Conference report
    Open Access
    The combination of time-domain harmonic scaling (TDHS) and sub-band coding (SBC) provides an encoding approach which allows 9.6 Kb/s speech encoding with good communication quality. Starting from this structure, this paper ...
  • Adaptive vector predictive speech coding with sample by sample update at 16 Kbps 

    Masgrau Gómez, Enrique José; Mariño Acebal, José Bernardo (1986)
    Conference report
    Open Access
    A vectorial generalization of the ADPCM system is introduced. Once the speech signal is grouped in vectors, they are coded using a vector predictor (VP) and a vector quantizer (VQ). Both subsystems are continously adaptive; ...
  • Advanced Signal Processing on Brain Event-Related Potentials 

    Melia, Umberto; Vallverdú Ferrer, Montserrat (2016-02-16)
    Review
    Restricted access - publisher's policy
  • Advanced signal processing techniques for fixed and mobile satellite communications 

    Henarejos, Pol; Pérez Neira, Ana Isabel; Mazzali, N.; Mosquera Nartallo, Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Restricted access - publisher's policy
    Enabling ultra fast systems has been widely investigated during recent decades. Although polarization has been deployed from the beginning in satellite communications, nowadays it is being exploited to increase the throughput ...
  • A general adaptive algorithm for nonGaussian source separation without any constraint 

    Lagunas Hernandez, Miguel A. (1994)
    Conference report
    Open Access
    This paper deals with the blind source separation. The task consists in separating some independent and linearly mixed signals called sources. After some general remarks, the model is recalled and our approach based on the ...
  • Alarma per excursionistes 

    Pascual Vives, Xavier (Universitat Politècnica de Catalunya, 2010-01-27)
    Bachelor thesis
    Open Access
  • A linear transform for spectral estimation 

    Lagunas Hernandez, Miguel A.; Figueiras Vidal, Aníbal R.; Mariño Acebal, José Bernardo; Carol Vilanova, Antonio (1981-10)
    Article
    Open Access