Enviaments recents

  • Semantic and generic object segmentation for scene analysis using RGB-D Data 

    Lin, Xiao (Universitat Politècnica de Catalunya, 2018-07-20)
    Tesi
    Accés obert
    In this thesis, we study RGB-D based segmentation problems from different perspectives in terms of the input data. Apart from the basic photometric and geometric information contained in the RGB-D data, also semantic and ...
  • Cellular networks for smart grid communication 

    Kalalas, Charalampos (Universitat Politècnica de Catalunya, 2018-07-19)
    Tesi
    Accés obert
    The next-generation electric power system, known as smart grid, relies on a robust and reliable underlying communication infrastructure to improve the efficiency of electricity distribution. Cellular networks, e.g., LTE/LTE-A ...
  • Deep learning for i-vector speaker and language recognition 

    Ghahabi Esfahani, Omid (Universitat Politècnica de Catalunya, 2018-05-29)
    Tesi
    Accés obert
    Over the last few years, i-vectors have been the state-of-the-art technique in speaker and language recognition. Recent advances in Deep Learning (DL) technology have improved the quality of i-vectors but the DL techniques ...
  • Investigation of continuous-wave range-resolved lidar systems for gas detection and concentration measurement 

    Batet Torrell, Óscar (Universitat Politècnica de Catalunya, 2011-07-27)
    Tesi
    Accés obert
    The techniques for detection of the atmosphere constituents and their distribution in the space have evolved in the last years driven by needs in the environmental, meteorological and climate science fields and backed by ...
  • Design and stochastic analysis of emerging large-scale wireless-powered sensor networks 

    Mekikis, Prodromos-Vasileios (Universitat Politècnica de Catalunya, 2017-11-13)
    Tesi
    Accés obert
    Undeniably, the progress in wireless networks during the last two decades is extraordinary. However, the ever-increasing upward trend in the numbers of wireless devices that will overwhelm every field of our everyday life, ...
  • Contribution to ground-based and UAV SAR systems for Earth observation 

    Lort Cuenca, Marc (Universitat Politècnica de Catalunya, 2017-11-17)
    Tesi
    Accés obert
    Mankind's way of life is the main driver of a planetary-scale change that is marked by the growing of human population's demand of energy, food, goods, services and information. As a result, it have emerged new ecological, ...
  • Contribution to advanced sensor development for passive imaging of the Earth 

    Durán Martínez, Israel (Universitat Politècnica de Catalunya, 2017-11-20)
    Tesi
    Accés obert
    This work has been formally undertaken within the frame of the scholarship number BES-2012-053917 of 1 December 2012, by the "Secretario de Estado de Investigación del Ministerio de Economía y Competitividad" related to ...
  • Redes de acceso UDWDM operadas con láseres aleatorios de sintonía limitada 

    Sales Zaragozá, Vicente (Universitat Politècnica de Catalunya, 2017-10-25)
    Tesi
    Accés obert
    A new passive optical network (PON) for access, making use of ultra-dense wavelength division multiplexing (UDWDM) by densely spacing channels by a few gigahertz and introducing the "wavelength-to-the-user" concept, is ...
  • Discriminative features for GMM and i-vector based speaker diarization 

    Zewoudie, Abraham Woubie (Universitat Politècnica de Catalunya, 2017-09-20)
    Tesi
    Accés obert
    Speaker diarization has received several research attentions over the last decade. Among the different domains of speaker diarization, diarization in meeting domain is the most challenging one. It usually contains spontaneous ...
  • Unsupervised learning for expressive speech synthesis 

    Jauk, Igor (Universitat Politècnica de Catalunya, 2017-09-12)
    Tesi
    Accés obert
    Nowadays, especially with the upswing of neural networks, speech synthesis is almost totally data driven. The goal of this thesis is to provide methods for automatic and unsupervised learning from data for expressive speech ...
  • Multivariate approach-based system for the automated interpretation of spectra : application to pigments identification through Raman spectroscopy in art analysis 

    González Vidal, Juan José (Universitat Politècnica de Catalunya, 2017-09-29)
    Tesi
    Accés obert
    The application of spectroscopic techniques is crucial for art historians and conservators who require knowledge of materials used in works of art (pigments, dyes, binders, additives, ...) in particular instances. In this ...
  • Reconfigurable high efficiency class-F power amplifier using CMOS-MEMS technology 

    Gilasgar, Mitra (Universitat Politècnica de Catalunya, 2017-09-08)
    Tesi
    Accés obert
    The increasing demand for wireless products to be part of our daily lives brings the need for longer battery lifetime, smaller size and lower cost. To increase battery lifetime, high efficiency power amplifiers (PAs) are ...

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