• Multiresolution hierarchy co-clustering for semantic segmentation in sequences with small variations 

      Varas González, David; Alfaro Vendrell, Mónica; Marqués Acosta, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper presents a co-clustering technique that, given a collection of images and their hierarchies, clusters nodes from these hierarchies to obtain a coherent multiresolution representation of the image collection. We ...
    • Region-based particle filter for video object segmentation 

      Varas González, David; Marqués Acosta, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      We present a video object segmentation approach that extends the particle filter to a region-based image representation. Image partition is considered part of the particle filter measurement, which enriches the available ...
    • Region-based particle filter leveraged with a hierarchical co-clustering 

      Varas González, David (Universitat Politècnica de Catalunya, 2016-11-14)
      Tesi
      Accés obert
      In this thesis, we exploit the hierarchical information associated with images to tackle two fundamental problems of computer vision: video object segmentation and video segmentation. In the first part of the thesis, we ...
    • Type of view estimation in Football sequences 

      Varas González, David (Universitat Politècnica de Catalunya, 2010-07-10)
      Projecte Final de Màster Oficial
      Accés obert
    • UPC system for the 2015 MediaEval multimodal person discovery in broadcast TV task 

      India, Miquel; Varas González, David; Vilaplana Besler, Verónica; Morros Rubió, Josep Ramon; Hernando Pericás, Francisco Javier (2015)
      Text en actes de congrés
      Accés obert
      This paper describes a system to identify people in broadcast TV shows in a purely unsupervised manner. The system outputs the identity of people that appear, talk and can be identified by using information appearing in ...
    • Visibility estimation of advertising panels in football sequences 

      Varas González, David (Universitat Politècnica de Catalunya, 2009-09-06)
      Projecte/Treball Final de Carrera
      Accés obert
      In this work, we propose a robust classification system that estimates the advertising panels visibility in real time. For each frame of the sequence, a set of descriptors is extracted to characterize a specific part of ...