Now showing items 2-9 of 9

  • From global image annotation to interactive object segmentation 

    Giró Nieto, Xavier; Martos Asensio, Manel; Mohedano Robles, Eva; Pont Tuset, Jordi (2013-02-16)
    Article
    Restricted access - publisher's policy
    This paper presents a graphical environment for the annotation of still images that works both at the global and local scales. At the global scale, each image can be tagged with positive, negative and neutral labels referred ...
  • Image segmentation evaluation and its application to object detection 

    Pont Tuset, Jordi (Universitat Politècnica de Catalunya, 2014-02-19)
    Doctoral thesis
  • Improving microaggregation for complex record anonymization 

    Pont Tuset, Jordi; Nin Guerrero, Jordi; Medrano Gracia, Pau; Larriba Pey, Josep; Muntés Mulero, Víctor (Springer Verlag, 2008)
    Conference report
    Restricted access - publisher's policy
    Microaggregation is one of the most commonly employed microdata protection methods. This method builds clusters of at least k original records and replaces the records in each cluster with the centroid of the cluster. ...
  • Increasing polynomial regression complexity for data anonymization 

    Nin Guerrero, Jordi; Pont Tuset, Jordi; Medrano Gracia, Pau; Larriba Pey, Josep; Muntés Mulero, Víctor (IEEE Computer Society, 2007)
    Conference report
    Open Access
    Pervasive computing and the increasing networking needs usually demand from publishing data without revealing sensible information. Among several data protection methods proposed in the literature, those based on linear ...
  • Measures and meta-measures for the supervised evaluation of image segmentation 

    Pont Tuset, Jordi; Marqués Acosta, Fernando (IEEE Computer Society Publications, 2013)
    Conference report
    Open Access
    This paper tackles the supervised evaluation of image segmentation algorithms. First, it surveys and structures the measures used to compare the segmentation results with a ground truth database, and proposes a new measure: ...
  • Parameter determination of ONN (Ordered Neural Networks) 

    Pont Tuset, Jordi; Medrano Gracia, Pau; Nin Guerrero, Jordi; Larriba Pey, Josep; Muntés Mulero, Víctor (2007)
    External research report
    Open Access
    The need for data privacy motivates the development of new methods that allow to protect data minimizing the disclosure risk without losing information. In this paper, we propose a new protection method for numerical data ...
  • System architecture of a web service for Content-Based Image Retrieval 

    Giró Nieto, Xavier; Ventura, Carles; Pont Tuset, Jordi; Cortés Yuste, Silvia; Marqués Acosta, Fernando (Association for Computing Machinery (ACM), 2010)
    Conference lecture
    Open Access
    This paper presents the system architecture of a Content- Based Image Retrieval system implemented as a web service. The proposed solution is composed of two parts, a client run- ning a graphical user interface for query ...
  • Upper-bound assessment of the spatial accuracy of hierarchical region-based image representations 

    Pont Tuset, Jordi; Marqués Acosta, Fernando (IEEE, 2012)
    Conference report
    Restricted access - publisher's policy
    Hierarchical region-based image representations are versatile tools for segmentation, filtering, object detection, etc. The evaluation of their spatial accuracy has been usually performed assessing the final result of an ...