Now showing items 41-60 of 83

  • Materials transversals per a l'aprenentatge actiu de les matèries de processat d'imatge i vídeo 

    Morros Rubió, Josep Ramon; Vilaplana Besler, Verónica; Ruiz Hidalgo, Javier; Casas Pla, Josep Ramon; Gasull Llampallas, Antoni; Marqués Acosta, Fernando; Pardàs Feliu, Montse; Salembier Clairon, Philippe Jean (2014)
    Conference report
    Open Access
    Aquest treball vol promoure la col·laboració i coordinació entre assignatures de processat d'imatge/vídeo amb l’objectiu de potenciar els resultats en l'aprenentatge. Les principals contribucions son a) la creació d’un ...
  • Metric learning from poses for temporal clustering of human motion 

    López Méndez, Adolfo; Gall, Juergen; Casas Pla, Josep Ramon; van Gool, Luc (2012)
    Conference lecture
    Restricted access - publisher's policy
    Temporal clustering of human motion into semantically meaningful behaviors is a challenging task. While unsupervised methods do well to some extent, the obtained clusters often lack a semantic interpretation. In this paper, ...
  • Microscopic simulation with AIMSUN for the assessment of incident management strategies 

    Barceló Bugeda, Jaime; Ferrer, J; Casas Pla, Josep Ramon; Montero Mercadé, Lídia; Perarnau, Josep (2002)
    Conference report
    Open Access
    PRIME (Prediction of Congestion and Incidents in Real Time, for Intelligent Incident Management and Emergency Traffic Management) was a project of the 5ht Framework Program of the European Union which objectives were to ...
  • Morphological filter for lossless image subsampling 

    Casas Pla, Josep Ramon; Torres Urgell, Lluís (IEEE Computer Society, 1994)
    Conference report
    Open Access
    We present a morphological filter for lossless image subsampling for a given downsampling-upsampling strategy. This filter is applied in a multiresolution decomposition and results in a more efficient scheme for image ...
  • 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 ...
  • MPEG-4 : una nueva representación de la información audio-visual 

    Casas Pla, Josep Ramon; Marqués Acosta, Fernando; Salembier Clairon, Philippe Jean (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 1996)
    Article
    Open Access
  • Multi-camera multi-object voxel-based Monte Carlo 3D tracking strategies 

    Canton Ferrer, Cristian; Casas Pla, Josep Ramon; Pardàs Feliu, Montse; Monte Moreno, Enrique (HINDAWI, 2011-11-23)
    Article
    Open Access
    This article presents a new approach to the problem of simultaneous tracking of several people in low-resolution sequences from multiple calibrated cameras. Redundancy among cameras is exploited to generate a discrete 3D ...
  • Multi-person tracking strategies based on voxel analysis 

    Canton Ferrer, Cristian; Salvador Marcos, Jordi; Casas Pla, Josep Ramon; Pardàs Feliu, Montse (2008-06)
    Article
    Restricted access - publisher's policy
    This paper presents two approaches to the problem of simultaneous tracking of several people in low resolution sequences from multiple calibrated cameras. Spatial redundancy is exploited to generate a discrete 3D binary ...
  • Multi-resolution illumination compensation for foreground extraction 

    Suau Cuadros, Xavier; Casas Pla, Josep Ramon; Ruiz Hidalgo, Javier (2009-11)
    Conference lecture
    Open Access
    Illumination changes may lead to false foreground (FG) segmentation and tracking results. Most of the existing FG extraction algorithms obtain a background (BG) estimation from temporal statistical parameters. Such ...
  • Multi-view body tracking with a detector-driven hierarchical particle filter 

    Navarro, S.; López Méndez, Adolfo; Alcoverro Vidal, Marcel; Casas Pla, Josep Ramon (Springer, 2012)
    Conference report
    Restricted access - publisher's policy
    In this paper we present a novel approach to markerless human motion capture that robustly integrates body part detections in multiple views. The proposed method fuses cues from multiple views to enhance the propagation ...
  • Multi-view video representation based on fast Monte Carlo surface reconstruction 

    Salvador Marcos, Jordi; Casas Pla, Josep Ramon (2013-09)
    Article
    Restricted access - publisher's policy
    This paper provides an alternative solution to the costly representation of multi-view video data, which can be used for both rendering and scene analyses. Initially, a new efficient Monte Carlo discrete surface ...
  • New approaches to texture coding in segmentation and feature-based image coding schemes 

    Torres Urgell, Lluís; Casas Pla, Josep Ramon (. S.N., 1995)
    Conference report
    Open Access
  • One shot learning for generic instance segmentation in RGBD videos 

    Lin, Xiao; Casas Pla, Josep Ramon; Pardàs Feliu, Montse (Scitepress, 2019)
    Conference report
    Open Access
    Hand-crafted features employed in classical generic instance segmentation methods have limited discriminative power to distinguish different objects in the scene, while Convolutional Neural Networks (CNNs) based semantic ...
  • Oriented radial distribution on depth data: application to the detection of end-effectors 

    Suau Cuadros, Xavier; Ruiz Hidalgo, Javier; Casas Pla, Josep Ramon (IEEE, 2012)
    Conference lecture
    Open Access
  • Person tracking 

    Bernardin, Keni; Stiefelhagen, Rainer; Pnevmatikakis, Aristodemos; Lanz, Oswald; Brutti, Alessio; Casas Pla, Josep Ramon; Potamianos, Gerasimos (Springer-Verlag, 2009-05-31)
    Part of book or chapter of book
    Restricted access - publisher's policy
    One of the most basic building blocks for the understanding of human actions and interactions is the accurate detection and tracking of persons in a scene. In constrained scenarios involving at most one subject, or in ...
  • Photo-consistent surfaces from a sparse set of viewpoints 

    Salvador Marcos, Jordi; Casas Pla, Josep Ramon (2010)
    Conference lecture
    Restricted access - publisher's policy
    We address the problem of reconstructing 3D shapes from color data available in a sparse set of views from all directions of a scene. As an advantage when compared to multiview stereo approaches, our method is able to ...
  • Prediction error image coding using a modified stochastic vector quantization scheme 

    Torres Urgell, Lluís; Casas Pla, Josep Ramon (IEEE, 1996)
    Conference report
    Open Access
    The objective of this paper is to provide an efficient and yet simple method to encode the prediction error image of video sequences, based on a stochastic vector quantization (SVQ) approach that has been modified to cope ...
  • Projecte COM@WEB: plataforma web d'aprenentatge intel•ligent de processament del Senyal i Comunicacions. 

    Cabrera-Bean, Margarita; Fernández Rubio, Juan Antonio; Giró, Xavier; Closas, Pau; Rey Micolau, Francesc; Fernández Prades, Carlos; Sala, Josep; Villares Piera, Nemesio Javier; Gasull Llampallas, Antoni; Casas Pla, Josep Ramon (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2007-06-28)
    Conference report
    Open Access
    La plataforma d’e-learning: comweb.upc.edu és una eina multimèdia de suport a l’estudi, l’experimentació i l’adquisició de tècniques d’auto-aprenentatge. COM@WEB s’ofereix com a punt de trobada entre estudiants, professors ...
  • Real-time 3D multi-person tracking using Monte Carlo surface sampling 

    Canton Ferrer, Cristian; Casas Pla, Josep Ramon; Pardàs Feliu, Montse (2010)
    Conference report
    Open Access
    The current paper presents a low-complexity approach to the problem of simultaneous tracking of several people in low resolution sequences from multiple calibrated cameras. Redundancy among cameras is exploited to ...