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Ara es mostren els items 27-46 de 59

    • 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)
      Text en actes de congrés
      Accés obert
      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 ...

    • Model-based hand gesture tracking in ToF image sequences 

      Gudmundsson, Sigurjon; Sveinsson, Johannes; Pardàs Feliu, Montse; Aanaes, Henrik; Larsen, Ramus (2010-07)
      Article
      Accés restringit per política de l'editorial
      This paper presents a Time-of-Flight (ToF) camera based system for hand motion and gesture tracking. A 27 degree of freedom (DOF) hand model is constructed and fleshed out by ellipsoids. This allows the synthesis of range ...

    • Morphological operators for image and video compression 

      Salembier Clairon, Philippe Jean; Brigger, P; Casas Pla, Josep Ramon; Pardàs Feliu, Montse (1996-06)
      Article
      Accés obert
      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 ...

    • Motion region overlapping for segmentation-based video coding 

      Pardàs Feliu, Montse; Salembier Clairon, Philippe Jean; Gonzalez, Benito (. S.N., 1994)
      Text en actes de congrés
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      In object-based video coding systems, the scenes are described in terms of three dimensional objects, which can be coded as textures and contours. However, in order to achieve high compression ratios, the redundancy in the ...

    • 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
      Accés obert
      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
      Accés restringit per política de l'editorial
      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 ...

    • Multiview foreground segmentation using 3D probabilistic model 

      Gallego Vila, Jaime; Pardàs Feliu, Montse (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      We propose a complete multi-view foreground segmentation and 3D reconstruction system that defines a 3-dimensional probabilistic model to model the foreground object in the 3 spatial dimensions, thus gathering the information ...

    • Object-based image coding 

      Pardàs Feliu, Montse (1997-03)
      Article
      Accés restringit per política de l'editorial
      Object-based compression methods describe images in terms of a set of regions (a partition), and of some information for each region to be used by the receiver to reconstruct the image (its texture). Different techniques ...

    • One shot learning for generic instance segmentation in RGBD videos 

      Lin, Xiao; Casas Pla, Josep Ramon; Pardàs Feliu, Montse (Scitepress, 2019)
      Text en actes de congrés
      Accés obert
      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 ...

    • Partition tree for a segmentation-based video coding system 

      Pardàs Feliu, Montse; Salembier Clairon, Philippe Jean; Marqués Acosta, Fernando; Morros, R (Institute of Electrical and Electronics Engineers (IEEE), 1996)
      Text en actes de congrés
      Accés obert
      In this paper we describe a very low bit rate video coding system that belongs to the class of object based coding systems. The system takes advantage of homogeneity in both gray level and motion, trying to use the most ...

    • Real-time 3D multi-person tracking using Monte Carlo surface sampling 

      Canton Ferrer, Cristian; Casas Pla, Josep Ramon; Pardàs Feliu, Montse (2010)
      Text en actes de congrés
      Accés obert
      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 ...

    • Real-time upper body tracking with online initialization using a range sensor 

      López Méndez, Adolfo; Alcoverro Vidal, Marcel; Pardàs Feliu, Montse; Casas Pla, Josep Ramon (2011)
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      We present a novel method for upper body pose estimation with online initialization of pose and the anthropometric profile. Our method is based on a Hierarchical Particle Filter that defines its likelihood function with ...

    • Real-time user independent hand gesture recognition from time-of-flight camera video using static and dynamic models 

      Molina, Javier; Escudero-Viñolo, Marcos; Bescós Cano, Jesús; Signorelo, Alessandro; Pardàs Feliu, Montse; Ferran, Christian; Marqués Acosta, Fernando; Martínez, José Maria (2011-08-06)
      Article
      Accés restringit per política de l'editorial
      The use of hand gestures offers an alternative to the commonly used human computer interfaces, providing a more intuitive way of navigating among menus and multimedia applications. This paper presents a system for hand ...

    • Recent Trends in Video Sequence Analysis 

      Garrido Ostermann, Luis; Marqués Acosta, Fernando; Pardàs Feliu, Montse; Salembier Clairon, Philippe Jean; Vilaplana Besler, Verónica (B. Macq, 1997)
      Text en actes de congrés
      Accés obert
      This paper reviews and analyses the problems facing video classification. It investigates how the semantic gap can be bridged. It presents a new taxonomy for video calssifaction based on a lituture survey. It conclueds ...

    • Refinement network for unsupervised on the scene foreground segmentation 

      Pardàs Feliu, Montse; Canet Tarrés, Gemma (European Association for Signal Processing (EURASIP), 2020)
      Text en actes de congrés
      Accés obert
      Unsupervised learning represents one of the most interesting challenges in computer vision today. The task has an immense practical value with many applications in artificial intelligence and emerging technologies, as large ...

    • Region based foreground segmentation combining color and depth sensors via logarithmic opinion pool decision 

      Gallego Vila, Jaime; Pardàs Feliu, Montse (2013-04-01)
      Article
      Accés restringit per política de l'editorial
      In this paper we present a novel foreground segmentation system that combines color and depth sensors information to perform a more complete Bayesian segmentation between foreground and background classes. The system shows ...

    • Robust 3D SFS reconstruction based on reliability maps 

      Gallego Vila, Jaime; Pardàs Feliu, Montse (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      This paper deals with Shape from Silhouette (SfS) volumetric reconstruction in the context of multi-view smart room scenarios. The method that we propose first computes a 2D foreground object segmentation in each one of ...

    • Segmentation of video sequences and rate control 

      Marcotegui Iturmendi, Beatriz; Marqués Acosta, Fernando; Morros Rubió, Josep Ramon; Pardàs Feliu, Montse; Salembier Clairon, Philippe Jean (1997-08)
      Article
      Accés obert
      This paper deals with the relation between segmentation for coding and rate control. The efficiency of a segmentation-based coding scheme heavily relies on this step that defines how many and which regions have to be ...

    • Segmentation of video sequences for partition tree generation 

      Pardàs Feliu, Montse; Salembier Clairon, Philippe Jean (1997-07)
      Article
      Accés restringit per política de l'editorial
      In this paper we propose a segmentation structure to generate a partition tree with multiple partition proposals. These multiple partitions are obtained for every image in a hierarchical way, from the coarsest one to the ...

    • Segmentation-based video coding system allowing the manipulation of objects 

      Salembier Clairon, Philippe Jean; Marqués Acosta, Fernando; Pardàs Feliu, Montse; Morros Rubió, Josep Ramon; Corset, I; Jeannin, S; Bouchard, L; Meyer, F; Marcotegui Iturmendi, Beatriz (1997-02)
      Article
      Accés obert
      This paper presents a generic video coding algorithm allowing the content-based manipulation of objects. This manipulation is possible thanks to the definition of a spatiotemporal segmentation of the sequences. The coding ...