Now showing items 1-13 of 13

    • Big Data Geospatial Processing for Massive Aerial LiDAR Datasets 

      Deibe, David; Amor, Margarita; Doallo Biempica, Ramón (M D P I AG, 2020-02-21)
      [Abstract] For years, Light Detection and Ranging (LiDAR) technology has been considered as a challenge when it comes to developing efficient software to handle the extremely large volumes of data this surveying method is ...
    • Big Data Geospatial Processing for Massive Aerial LiDAR Datasets 

      Deibe, David; Amor, Margarita; Doallo, Ramón (M D P I AG, 2020-02-21)
      [Abstract] For years, Light Detection and Ranging (LiDAR) technology has been considered as a challenge when it comes to developing efficient software to handle the extremely large volumes of data this surveying method is ...
    • BPLG–BMCS: GPU-sorting algorithm using a tuning skeleton library 

      Pérez Diéguez, Adrián; Amor, Margarita; Doallo Biempica, Ramón (Springer New York LLC, 2017)
      [Abstract] In this work, we present an efficient and portable sorting operator for GPUs. Specifically, we propose an algorithmic variant of the bitonic merge sort which reduces the number of processing stages and internal ...
    • Efficient Culling Techniques for Interactive Deformable NURBS Surfaces on GPU 

      Concheiro, Raquel; Amor, Margarita; Padrón, Emilio J.; Doggett, Michael (SciTePress, 2016-02)
      [Abstrtact] InfoValue: NURBS (Non-uniform rational B-splines) surfaces are the standard freeform representation in Computer-Aided Design (CAD) applications. Rendering NURBS surfaces accurately while they are interactively ...
    • EXIT: camiñando coa pintura e poesía_ARTencontros 

      Amor, Margarita; Serantes Pazos, Araceli; Trebacz, Gosia (Universidade da Coruña, Servizo de Publicacións, 2019)
    • Free adaptive tessellation strategy of bézier surfaces 

      Concheiro, Raquel; Amor, Margarita; Bóo, Montserrat; Padrón, Emilio J. (SciTePress, 2014-01)
      [Abstract] Rendering of Bézier surfaces is currently performed by tessellating the model on the GPU and rendering the highly detailed triangle mesh. Whereas non-adaptive strategies apply the same tessellation pattern to ...
    • GVLiDAR: an interactive web-based visualization framework to support geospatial measures on lidar data 

      Deibe Seoane, David; Amor, Margarita; Doallo Biempica, Ramón; Miranda, David; Cordero, Miguel (Taylor & Francis, 2017)
      [Abstract] In recent years lidar technology has experienced a noticeable increase in its relevance and usage in a number of scientific fields. Therefore, software capable of handling lidar data becomes a key point in those ...
    • Interactive Rendering of NURBS Surfaces 

      Concheiro, Raquel; Amor, Margarita; Padrón, Emilio J.; Doggett, Michael (Pergamon Press, 2014)
      [Abstract] NURBS (Non-uniform rational B-splines) surfaces are one of the most useful primitives employed for high quality modeling in CAD/CAM tools and graphics software. Since direct evaluation of NURBS surfaces on the ...
    • Parallel Hierarchical Radiosity on Hybrid Platforms 

      Padrón, Emilio J.; Amor, Margarita; Bóo, Montserrat; Doallo Biempica, Ramón; Rodríguez Álvarez, Gabriel (Springer Verlag, 2011-12)
      [Abstract] Achieving an efficient realistic illumination is an important aim of research in computer graphics. In this paper a new parallel global illumination method for hybrid systems based on the hierarchical radiosity ...
    • Rendering of Bézier Surfaces on Handheld Devices 

      Concheiro, Raquel; Amor, Margarita; Padrón, Emilio J.; Gil, Marisa; Martorell, Xavier (Vaclav Skala - Union Agency, 2013)
      [Abstract] Bézier surfaces have been widely employed in the designing of complex scenes with high-quality results. Nevertheless, parametric surfaces cannot be directly rendered in the current GPUs of modern handheld devices. ...
    • Solving Large Problem Sizes of Index-Digit Algorithms on GPU: FFT and Tridiagonal System Solvers 

      Pérez Diéguez, Adrián; Amor, Margarita; Lobeiras Blanco, Jacobo; Doallo Biempica, Ramón (Institute of Electrical and Electronics Engineers, 2018)
      [Abstract] Current Graphics Processing Units (GPUs) are capable of obtaining high computational performance in scientific applications. Nevertheless, programmers have to use suitable parallel algorithms for these architectures ...
    • Synthesis of Multiresolution Scenes with Global Illumination on a GPU 

      Concheiro, Raquel; Amor, Margarita; Bóo, Montserrat; Iglesias, Iago; Padrón, Emilio J.; Doallo Biempica, Ramón (SciTePress, 2012-02)
      [Abstract] The radiosity computation has the important feature of producing view independent results, but these results are mesh dependent and, in consequence, are attached to a specific level of detail in the input mesh. ...
    • Texture Mapping on NURBS Surface 

      Vázquez Pardo, Sergio; Amor, Margarita (M D P I AG, 2018-09-17)
      [Abstract] Texture mapping allows high resolution details over 3D surfaces. Nevertheless, texture mapping has a number of unresolved problems such as distortion, boundary between textures or filtering. On the other hand, ...