Now showing items 1-20 of 28

  • Accelerating super-resolution for 4K upscaling 

    Pérez-Pellitero, Eduardo; Salvador, Jordi; Ruiz Hidalgo, Javier; Rosenhahn, Bodo (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Restricted access - publisher's policy
    This paper presents a fast Super-Resolution (SR) algorithm based on a selective patch processing. Motivated by the observation that some regions of images are smooth and unfocused and can be properly upscaled with fast ...
  • A feature-based subband coding scheme 

    Casas Pla, Josep Ramon; Torres Urgell, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 1996)
    Conference report
    Restricted access - publisher's policy
    A feature-based subband coding scheme is presented. It is intended for the coding of the texture component of a two-component image model. The primary component contains the strong edges, individually described by their ...
  • A Lagrangian–Eulerian finite element algorithm for advection–diffusion–reaction problems with phase change 

    Oliveira, Beñat; Afonso, Juan Carlos; Zlotnik, Sergio (2016-03)
    Article
    Open Access
    This paper presents a particle-based Lagrangian–Eulerian algorithm for the solution of the unsteady advection–diffusion–reaction heat transfer equation with phase change. The algorithm combines a Lagrangian formulation for ...
  • Analisi del temporal de vent sever del 24 de gener del 2009 al Baix Llobregat: modelitzacio i interpolacio de la direccio i intensitat del vent. 

    Deniz Catlla, Carlos Jose (Universitat Politècnica de Catalunya, 2011-03-31)
    Bachelor thesis
    Open Access
    El 24 de gener del 2009 una ciclogenesi explosiva va provocar un temporal de vent sever, que va ensorrar edificis, va afectar greument a algunes infraestructures, cases i edificis, sent la causa de fins a set victimes ...
  • An outdoor TV band radio environment map for a manhattan like layout 

    Umbert Juliana, Anna; Casadevall Palacio, Fernando José; Rodríguez, Estuardo G. (2016)
    Conference report
    Restricted access - publisher's policy
    This paper presents an outdoor Radio Environment Map (REM) for the television band applied to the UPCCampus Nord, which has a Manhattan like structure. A measurement campaign of the received TV signal in the streets and ...
  • A parametric-space-based scan-line algorithm for rendering of bicubic surfaces 

    Pueyo Sánchez, Xavier; Brunet Crosa, Pere (1987)
    Article
    Open Access
    A novel scan-line algorithm for displaying bicubic surfaces is presented. Patches are decomposed on regions of constant sign of the z component of the normal before the scan process. Most of the computations are done in ...
  • Defining an2-disparity measure to check and improve the geometric accuracy of noninterpolating curved high-order meshes 

    Ruiz Gironés, Eloi; Sarrate Ramos, Josep; Roca Navarro, Francisco Javier (Elsevier, 2015)
    Conference report
    Open Access
    We define an2-disparity measure between curved high-order meshes and parameterized manifolds in terms of an2norm. The main application of the proposed definition is to measure and improve the distance between a curved high-order ...
  • Design and implementation of a wide-band real-time mobile channel emulator 

    Olmos Bonafé, Juan José; Gelonch Bosch, Antonio José; Casadevall Palacio, Fernando José; Femenias Nadal, Guillem (1999-05)
    Article
    Open Access
    A new wide-band mobile channel emulator for the CODIT project is designed and implemented. The UMTS code-division testbed (CODIT R2020) is a research project within the European RACE-II program set up by the Commission of ...
  • Direct determination of a low-pass components of a band-pass signal from samples of it and delayed versions of it 

    Figueiras Vidal, Aníbal R.; García Gómez, Ramón; Lagunas Hernandez, Miguel A.; Mariño Acebal, José Bernardo; Casar Corredera, José Ramón (Institute of Electrical and Electronics Engineers (IEEE), 1981)
    Conference report
    Open Access
  • Diseño de una herramienta porosa para el pulido de superficies ópticas usando programación lineal 

    Cuauhtémoc H. Castañeda, Roldan; González García, Jorge; Álvarez Martín, Luz del Carmen; Manzano Sumano, Liliana Jeanett; Santiago Alvarado, Agustín (Universitat Politècnica de Catalunya, 2009)
    Article
    Open Access
    En este trabajo se diseña una nueva herramienta de pulido de superficies ópticas, que hemos llamado porosa, debido a que está formada por perforaciones y postes circulares. El diseño de esta nueva herramienta se basa en ...
  • Exploiting asynchrony from exact forward recovery for DUE in iterative solvers 

    Jaulmes, Luc Etienne; Casas Guix, Marc; Moreto Planas, Miquel; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José; Valero Cortés, Mateo (2015)
    External research report
    Open Access
    This paper presents a method to protect iterative solvers from Detected and Uncorrected Errors (DUE) relying on error detection techniques already available in commodity hardware. Detection operates at the memory page ...
  • Generalized Pólya condition for Birkhoff interpolation with lacunary polynomials 

    Palacios Quiñonero, Francisco; Rubió Díaz, Pedro (2003-05)
    Article
    Open Access
  • Image Space and Time Interpolation for Video Navigation 

    Tamariz Sánchez, Angel Augusto (Universitat Politècnica de Catalunya, 2011-10-26)
    Master thesis
    Open Access
    English: The aim of image-based video navigation is essentially to achieve a continuous change in the viewpoint without the need of a complete camera coverage of the space of interest. By making use of image interpolation, ...
  • Implementación FPGA de un transmisor de pulsos Nyquist 

    Fernández Cuenca, Daniel (Universitat Politècnica de Catalunya, 2016)
    Master thesis (pre-Bologna period)
    Open Access
  • Interpolation and extrapolation of image partitions using Fourier descriptors: application to segmentation-based coding schemes 

    Marqués Acosta, Fernando; Llorens, Bernat; Gasull Llampallas, Antoni (. S.N., 1995)
    Conference report
    Open Access
    This paper presents an interpolation/extrapolation technique for sequence partitions. It consists of four steps: region parametrization, region interpolation, region ordering and partition creation. The evolution of each ...
  • Leak localization in water distribution networks using a Kriging data-based approach 

    Soldevila, Adrià; Jensen, Tom Nørgaard; Blesa Izquierdo, Joaquim; Tornil Sin, Sebastián; Fernández Canti, Rosa M.; Puig Cayuela, Vicenç (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    This paper presents a Kriging data-based method for leak localization in Water Distribution Networks (WDNs). Given a set of sensors that provide pressure measurements in some inner nodes of the WDN, a WDN data-driven model ...
  • 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 ...
  • Morphological operators for image and video compression 

    Salembier Clairon, Philippe Jean; Brigger, P; Casas Pla, Josep Ramon; Pardàs Feliu, Montse (1996-06)
    Article
    Open Access
    This paper deals with the use of some morphological tools for image and video coding. Mathematical morphology can be considered as a shape-oriented approach to signal processing, and some of its features make it very useful ...
  • On the zero- and first-order interpolation in synthesized wave for testing purposes 

    Lozano Nieto, Alberto; Rosell Ferrer, Francisco Javier; Pallàs Areny, Ramon (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1992-12-02)
    Article
    Open Access
    This paper deals with the quality requirements of synthesized sine waves reconstructed through a zero- or first- order hold for testing purposes, in particular when a switching demodulator is used. In this case, the ...
  • Order regularity for Birkhoff interpolation with lacunary polynomials 

    Palacios Quiñonero, Francisco; Rubió Díaz, Pedro; Díaz Barrero, José Luis; Rossell Garriga, Josep Maria (2011-06-01)
    Article
    Open Access
    In this short paper we present sufficient conditions for the order regularity problem in Birkhoff interpolation with lacunary polynomials. These conditions are a generalization of the Atkinson-Sharma theorem.