Enviaments recents

  • From pixels to sentiment: fine-tuning CNNs for visual sentiment prediction 

    Campos Camunez, Victor; Jou, Brendan; Giró Nieto, Xavier (2017-02-05)
    Article
    Accés restringit per política de l'editorial
    Visual multimedia have become an inseparable part of our digital social lives, and they often capture moments tied with deep affections. Automated visual sentiment analysis tools can provide a means of extracting the rich ...
  • Optimum graph cuts for pruning binary partition trees of polarimetric SAR images 

    Salembier Clairon, Philippe Jean; Foucher, Samuel (Institute of Electrical and Electronics Engineers (IEEE), 2016-09-01)
    Article
    Accés obert
    This paper investigates several optimum graph-cut techniques for pruning binary partition trees (BPTs) and their usefulness for the low-level processing of polarimetric synthetic aperture radar (PolSAR) images. BPTs group ...
  • Description schemes for video program, user and devices 

    Salembier Clairon, Philippe Jean; Richard, Qian; O'Connors, N Et Al; Correia, P. (2000-09)
    Article
    Accés restringit per política de l'editorial
    This paper presents a set of description schemes (DS) dealing with video programs, users and devices. Following MPEG-7 terminology, a description of an AV document includes descriptors (termed Ds), which specify the syntax ...
  • Extensive operators in partition lattices for image sequence analysis 

    Garrido Ostermann, Luis; Salembier Clairon, Philippe Jean; García Vizcaíno, David (1998-04)
    Article
    Accés restringit per política de l'editorial
    This paper deals with the class of extensive operators in the lattice of partitions. These operators are merging techniques. They can be used as filtering tools or as segmentation algorithms. In the first case, they are ...
  • 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 ...
  • 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 ...
  • Morphological tools for segmentation: connected operators and watersheds 

    Meyer, F; Oliveras Vergés, Albert; Salembier Clairon, Philippe Jean; Vachier, C (1997-08)
    Article
    Accés restringit per política de l'editorial
    The paper makes a survey of the morphological tools which are useful for image simplification and segmentation. It starts presenting the connected filters, which have the unique feature to simplify the images without ...
  • General requirements for coding oriented segmentation of video-sequences 

    Marqués Acosta, Fernando; Pardàs Feliu, Montse; Salembier Clairon, Philippe Jean; Meyer, F (1997-08)
    Article
    Accés restringit per política de l'editorial
    This paper deals with the basic requirements that should be fulfilledby a technique for segmenting video sequences in coding applications. The specific problems of coding-oriented video segmentation are analyzed. This way ...
  • A region-based subband coding scheme 

    Casas Pla, Josep Ramon; Torres Urgell, Lluís (1997-07)
    Article
    Accés restringit per política de l'editorial
    This paper describes a region-based subband coding scheme intended for efficient representation of the visual information contained in image regions of arbitrary shape. QMF filters are separately applied inside each region ...
  • Stochastic vector quantization of images 

    Torres Urgell, Lluís; Casas Pla, Josep Ramon; Arias, E (1997-11)
    Article
    Accés restringit per política de l'editorial
    One of the most important steps in the vector quantization of images is the design of the codebook. The codebook is generally designed using the LBG algorithm, that is in essence a clustering algorithm which uses a large ...

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