Ara es mostren els items 39657-39676 de 89945

  • Fast online learning and detection of natural landmarks for autonomous aerial robots 

    Villamizar Vergel, Michael Alejandro; Sanfeliu Cortés, Alberto; Moreno-Noguer, Francesc (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    We present a method for efficiently detecting natural landmarks that can handle scenes with highly repetitive patterns and targets progressively changing its appearance. At the core of our approach lies a Random Ferns ...
  • Fast photorealistic techniques to simulate global illumination in videogames and virtual environments 

    Méndez Feliu, Àlex (Universitat Politècnica de Catalunya, 2007-06-15)
    Tesi
    Accés obert
    Per al càlcul de la il·luminació global per a la síntesi d'imatges d'escenaris virtuals s'usen mètodes físicament acurats com a radiositat o el ray-tracing. Aquests mètodes són molt potents i capaços de generar imatges de ...
  • Fast planar slides. A closed form thermo-hydro-mechanical solution 

    Pinyol Puigmartí, Núria Mercè; Alonso Pérez de Agreda, Eduardo (2010)
    Article
    Accés restringit per acord de confidencialitat
    Heat-induced eccess pore pressures on the failure surface of a planar slide have been calculated by solving the mass and heat balance equations on the shear band. The set of differential equations and the equation of ...
  • Fast Precise Point Positioning based on real-time ionospheric modelling 

    Juan Zornoza, José Miguel; Hernández Pajares, Manuel; Sanz Subirana, Jaume; Samson, Jaron; Tossaint, Michel Mathias Maria (2012)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    Summary of main results of new technique Fast Precise Point Positioning developed in the framework of the “Enhanced Precise Point Positioning (EPPP) GNSS multifrequency user algorithm” ESA funded project. -The precise ...
  • Fast Precise Point Positioning for decimeter-error-level navigation for multi and single-frequency users of Global Navigation Satellite Systems 

    Juan Zornoza, José Miguel; Hernández Pajares, Manuel; Sanz Subirana, Jaume; Samson, J.; Tossaint, M. (2012)
    Comunicació de congrés
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    This manuscript summarizes the new algorithm of Fast Precise Point Positioning (FPPP) the developed during the projects "Enhanced PPP GNSS multifrequency user algorithm" nd “Precise Real Time Orbit Determination and Time ...
  • Fast precise point positioning: a system to provide corrections for single and multi-frequency navigation 

    Rovira Garcia, Adrià; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; González Casado, Guillermo; Bertran Albertí, Eduardo (2016-09)
    Article
    Accés obert
    Fast Precise Point Positioning (Fast-PPP) provides Global Navigation Satellite System corrections in real-time. Satellite orbits and clock corrections are shown to be accurate to a few centimeters and a few tenths of a ...
  • Fast prototyping of computing-oriented fuzzy logic systems 

    Martínez Torre, José Ignacio; Deschamps, Jean Pierre; Fernández Centeno, Milagros (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1999)
    Article
    Accés obert
    In this paper we propose to explore different dedicated hardware solutions in terms of area-speed trade-offs for computing-oriented fuzzy logic systems in the algorithmic abstraction level that fulfil the application ...
  • Fast r-adaptivity for multiple queries of heterogeneous stochastic material fields 

    Cottereau, Régis; Díez, Pedro (2015-10-01)
    Article
    Accés obert
    We present an r-adaptivity approach for boundary value problems with randomly fluctuating material parameters solved through the Monte Carlo or stochastic collocation methods. This approach tailors a specific mesh for each ...
  • Fast self-reconfigurable embedded system on Spartan-3 

    Camós Andreu, Carles; Fons, Mariano; Fons, Francesc; López García, Mariano; Ramos Lara, Rafael Ramón (2013-02)
    Article
    Accés obert
    Many image-processing algorithms require several stages to be processed that cannot be resolved by embedded microprocessors in a reasonable time, due to their high-computational cost. A set of dedicated coprocessors can ...
  • Fast shadowing computation in physical optics surface 

    Rius Casals, Juan Manuel; Carbo, Alex; Úbeda Farré, Eduard; Heldring, Alexander (2013)
    Text en actes de congrés
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    GRECO code has been updated by replacing the graphical processing technique for computation of Physical Optics surface integral by a hybrid CPU-graphical processing approach. The resulting code needs more CPU power for ...
  • Fast silicon photomultiplier improves signal harvesting and reduces complexity in time-domain diffuse optics 

    Dalla Mora, Alberto; Martinenghi, Edoardo; Contini, Davide; Tosi, Alberto; Boso, Gianluca; Durduran, Turgut; Arridge, Simon; Martelli, Fabrizio; Farina, Andrea; Torricelli, Alessandro; Pifferi, Antonio (OSA, 2015-06-01)
    Article
    Accés obert
    We present a proof of concept prototype of a time-domain diffuse optics probe exploiting a fast Silicon PhotoMultiplier (SiPM), featuring a timing resolution better than 80 ps, a fast tail with just 90 ps decay time-constant ...
  • Fast simulation of translucent objects 

    Gascons Gomez, Christian (Universitat Politècnica de Catalunya, 2011-07)
    Projecte Final de Màster Oficial
    Accés obert
    The existing literature provides a wide variety of previous work regarding Subsurface Scattering e ects. These include pre-processed algorithms, and real-time techniques. On the next lines some of these techniques will ...
  • Fast simulation performance evaluation of spaceborne SAR-GMTI missions for maritime applications 

    Makhoul Varona, Eduardo; Zhan, Yu; Ceba Vega, Francisco; Broquetas Ibars, Antoni; Beaton, Alasdhair; Letterio, Federico; Tonetti, Stefania; Barbarossa, Sergio; di Lorenzo, Paolo; Maffei, Marco (VDE Conference Publications, 2014)
    Text en actes de congrés
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    This paper presents a flexible simulator for Ground Moving Target Indication (GMTI) in the frame of spaceborne Synthetic Aperture Radar (SAR) over maritime scenarios. The simulation tool provides GMTI performance metric ...
  • Fast super-resolution via dense local training and inverse regressor search 

    Pérez Pellitero, Eduardo; Salvador, Jordi; Torres Xirau, Iban; Ruiz Hidalgo, Javier; Rosenhahn, Bodo (Springer, 2014)
    Text en actes de congrés
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    Regression-based Super-Resolution (SR) addresses the upscaling problem by learning a mapping function (i.e. regressor) from the low-resolution to the high-resolution manifold. Under the locally linear assumption, this ...
  • Fast super-resolution via dense local training and inverse regressor search 

    Pérez-Pellitero, Eduardo; Salvador, Jordi; Torres-Xirau, Iban; Ruiz Hidalgo, Javier; Rosenhahn, Bodo (2014-11-01)
    Article
    Accés obert
    Regression-based Super-Resolution (SR) addresses the upscaling problem by learning a mapping function (i.e. regressor) from the low-resolution to the high-resolution manifold. Under the locally linear assumption, this ...
  • Fast time-to-market with via-configurable transistor array regular fabric: A delay-locked loop design case study 

    González Colás, Antonio María; Pons Solé, Marc; Barajas Ojeda, Enrique; Mateo Peña, Diego; López González, Juan Miguel; Moll Echeto, Francisco de Borja; Rubio Sola, Jose Antonio; Abella Ferrer, Jaume; Vera Rivera, Francisco Javier (IEEE Computer Society Publications, 2011)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    Time-to-market is a critical issue for nowadays integrated circuits manufacturers. In this paper the Via-Configurable Transistor Array regular layout fabric (VCTA), which aims to minimize the time-to-market and its associated ...
  • Fast transient current-steering CMOS LDO regulator based on current feedback amplifier 

    Saberkari, Alireza; Alarcón Cot, Eduardo José; Shokouhi, Shahriar B. (2013-03)
    Article
    Accés restringit per política de l'editorial
    This paper presents a current-steering approach to implement a fast transient response low-dropout regulator (LDO) based on a current feedback amplifier (CFA) topology. The circuit does not require any internal compensation ...
  • Fast, accurate and flexible data locality analysis 

    Sánchez Navarro, F. Jesús; González Colás, Antonio María (Institute of Electrical and Electronics Engineers (IEEE), 1998)
    Text en actes de congrés
    Accés obert
    This paper presents a tool based on a new approach for analyzing the locality exhibited by data memory references. The tool is very fast because it is based on a static locality analysis enhanced with very simple profiling ...
  • Fast, exact graph diameter computation with vertex programming 

    Pennycuff, Corey; Weninger, Tim (Barcelona Supercomputing Center, 2015)
    Text en actes de congrés
    Accés obert
    In graph theory the diameter is an important topological metric for understanding size and density of a graph. Unfortunately, the graph diameter is computationally di cult to measure for even moderately-sized graphs, ...
  • Fast-PPP assessment in European and equatorial region near the solar cycle maximum 

    Rovira Garcia, Adrià; Juan Zornoza, José Miguel; Sanz Subirana, Jaume (2014)
    Comunicació de congrés
    Accés obert