Exploració per tema "B-splines"

Ara es mostren els items 1-9 de 9

    • A variable order framework for 3D nonlinear analysis of reinforced concrete frames under general loading 

      Poliotti, Mauro; Bairán García, Jesús Miguel; Moller, O. (Elsevier, 2021-09)
      Article
      Accés obert
      A framework for the analysis of three-dimensional reinforced concrete frame structures, capable of reproducing general failure modes, is presented. A force-based model which guarantees the equilibrium between nodal and ...

    • Analysing visual receptive fields through generalised additive models with interactions 

      Rodríguez Álvarez, María Xosé; Cadarso-Suárez, Carmen; González, Francisco (Institut d'Estadística de Catalunya, 2012)
      Article
      Accés obert
      Visual receptive fields (RFs) are small areas of the visual fie ld where a stimulus induces a re- sponses of a particular neuron from the visual system. RFs ca n be mapped using reverse cross- correlation technique, ...

    • B-spline sectional model for general 3D effects in reinforced concrete elements 

      Poliotti, Mauro; Bairán García, Jesús Miguel (Elsevier, 2020-03)
      Article
      Accés obert
      In this paper, an efficient sectional model for the nonlinear analysis of reinforced concrete elements sensible to 3D stress-components effects is presented. The classic plane-sections kinematic hypothesis is enhanced with ...

    • High-resolution ionosphere corrections for single-frequency positioning 

      Goss, Andreas; Hernández Pajares, Manuel; Schmidt, Michael; Roma Dollase, David; Erdogan, Eren; Seitz, Florian (Multidisciplinary Digital Publishing Institute (MDPI), 2021-01-01)
      Article
      Accés obert
      The ionosphere is one of the main error sources in positioning and navigation; thus, information about the ionosphere is mandatory for precise modern Global Navigation Satellite System (GNSS) applications. The International ...

    • Numerical solution of PDEs in periodical domains 

      Barceló Mercader, Jordi (Universitat Politècnica de Catalunya, 2018-01)
      Projecte Final de Màster Oficial
      Accés obert
      We present in this work two schemes of approximation for numerical solutions of PDEs. The first one is the maximum entropy method (max-ent) and the second one is the b-spline method. These methods let us impose a special ...

    • Parameter selection in the design of displacement and motion functions by means of B-splines 

      Zayas Figueras, Enrique Ernesto; Cardona Foix, Salvador; Jordi Nebot, Lluïsa (Springer, 2018-05)
      Article
      Accés obert
      This work analyses the incidence of the parameter selection of B-spline curves, used in the design of displacement and motion functions, on its degree of freedom and shape. A complete design process based on the use of ...

    • Peaks and jumps reconstruction with B-splines scaling functions 

      Ortiz Gracia, Luis; Masdemont Soler, Josep (2014-12-15)
      Article
      Accés restringit per política de l'editorial
      We consider a methodology based on B-splines scaling functions to numerically invert Fourier or Laplace transforms of functions in the space L-2(R). The original function is approximated by a finite combination of jth order ...

    • Spline human motion recovery 

      Agudo Martínez, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Text en actes de congrés
      Accés obert
      Simultaneous camera pose, 4D reconstruction of an object and deformation clustering from incomplete 2D point tracks in a video is a challenging problem. To solve it, in this work we introduce a union of piecewise subspaces ...

    • Twenty years of P-splines 

      Eilers, Paul H.C.; Marx, Brian D.; Durbán, Maria (Institut d'Estadística de Catalunya, 2015-12)
      Article
      Accés obert
      P-splines first appeared in the limelight twenty years ago. Since then they have become popular in applications and in theoretical work. The combination of a rich B-spline basis and a simple difference penalty lends itself ...