Now showing items 1-17 of 17

  • Automatic generation of computer animated sequences based on human behaviour modelling 

    Baiget, Pau; Soto, Joan; Roca, Francesc Xavier; Gonzàlez, Jordi (s. n., 2007)
    Conference report
    Open Access
    This paper presents a complete framework to automatically generate synthetic image sequences by designing and simulating complex human behaviors in virtual environments. Given an initial state of a virtual agent, a simulation ...
  • Automatic learning of 3D pose variability in walking performances for gait analysis 

    Rius, Ignasi; González Sabaté, Jordi; Mozerov, Mikhail; Roca, Francesc Xavier (2008)
    Article
    Open Access
    This paper proposes an action specific model which automatically learns the variability of 3D human postures observed in a set of training sequences. First, a Dynamic Programing synchronization algorithm is presented in ...
  • Automatic learning of 3D pose variability in walking performances for gait analysis 

    Rius, Ignasi; Gonzàlez, Jordi; Mozerov, Mikhail; Roca, Francesc Xavier (Serials Publications, 2008)
    Article
    Open Access
    This paper proposes an action specific model which automatically learns the variability of 3D human postures observed in a set of training sequences. First, a Dynamic Programing synchronization algorithm is presented in ...
  • Automatic learning of conceptual knowledge in image sequences for human behavior interpretation 

    Baiget, Pau; Fernández, Carles; Roca, Francesc Xavier; Gonzàlez, Jordi (Springer Verlag, 2007)
    Part of book or chapter of book
    Open Access
    This work describes an approach for the interpretation and explanation of human behavior in image sequences, within the context of a Cognitive Vision System. The information source is the geometrical data obtained by ...
  • Constructing a path database for scene categorization 

    Baiget, Pau; Fernández, Carles; Amato, Ariel; Roca, Francesc Xavier; Gonzàlez, Jordi (s. n., 2007)
    Conference report
    Open Access
    Human behavior understanding in image sequences requires to study human interaction with the environment, because human beings behave depending on their location. Therefore, a semantic labeling of the scenario must be ...
  • Deterministic and stochastic methods for gaze tracking in real-time 

    Orozco, Francisco J.; Roca, Francesc Xavier; Gonzàlez, Jordi (Springer, 2007)
    Part of book or chapter of book
    Open Access
    Psychological evidence demonstrates how eye gaze analysis is requested for human computer interaction endowed with emotion recognition capabilities. The existing proposals analyse eyelid and iris motion by using colour ...
  • Face detection in color images using primitive shape features 

    Al, Murad; Amato, Ariel; Roca, Francesc Xavier; Gonzàlez, Jordi (Springer, 2007)
    Part of book or chapter of book
    Open Access
    Face detection is a primary step in many applications such as face recognition, video surveillance, human computer interface, and expression recognition. Many existing detection techniques suffer under scale variation, ...
  • Finding faces in color images through primitive shape features 

    Al, Murad; Orozco, Francisco J.; Amato, Ariel; Roca, Francesc Xavier; Gonzàlez, Jordi (s. n., 2007)
    Conference report
    Open Access
    Face detection is a primary step in many applications such as face recognition, video surveillance, human computer interface, and expression recognition. Many existing detection techniques suffer under scale variation, ...
  • HERMES: A research project on human sequence evaluation 

    Gonzàlez, Jordi; Roca, Francesc Xavier; Villanueva, Juan J. (Taylor and Francis, 2007)
    Conference report
    Open Access
    Human Sequence Evaluation concentrates on how to extract descriptions of human behaviour from videos in a restricted discourse domain, such as (i) pedestrians crossing inner-city roads where pedestrians appear approaching ...
  • Hierarchical eyelid and face tracking 

    Orozco, Francisco J.; Gonzàlez, Jordi; Rius, Ignasi; Roca, Francesc Xavier (Springer Verlag, 2007)
    Part of book or chapter of book
    Open Access
    Most applications on Human Computer Interaction (HCI) require to extract the movements of user faces, while avoiding high memory and time expenses. Moreover, HCI systems usually use low-cost cameras, while current face ...
  • High-level integration for cognitive vision surveillance 

    Fernández, Carles; Baiget, Pau; Roca, Francesc Xavier; Gonzàlez, Jordi (s. n., 2007)
    Conference report
    Open Access
    The increasing interest in Cognitive Vision Systems (CVS) motivates the apparition of ad-hoc stages designed for the integration of multiple kinds of knowledge. This paper proposes a novel ontology to restrict and integrate ...
  • Natural language descriptions of human behaviour from video sequences 

    Fernández, Carles; Baiget, Pau; Roca, Francesc Xavier; Gonzàlez, Jordi (Springer, 2007)
    Part of book or chapter of book
    Open Access
    This contribution addresses the generation of textual descriptions in several natural languages for evaluation of human behavior in video sequences. The problem is tackled by converting geometrical information extracted ...
  • Real-time gaze tracking with appearance-based models 

    Orozco, Francisco Javier; Roca, Francesc Xavier; González, Jordi (2009)
    Article
    Open Access
    Psychological evidence has emphasized the importance of eye gaze analysis in human computer interaction and emotion interpretation. To this end, current image analysis algorithms take into consideration eye-lid and iris ...
  • Semantic annotation of complex human scenes for multimedia surveillance 

    Fernández, Carles; Baiget, Pau; Roca, Francesc Xavier; Gonzàlez, Jordi (Springer, 2007)
    Part of book or chapter of book
    Open Access
    A Multimedia Surveillance System (MSS) is considered for automatically retrieving semantic content from complex outdoor scenes, involving both human behavior and traffic domains. To characterize the dynamic information ...
  • Study of odor episodes using analytical and modeling approaches 

    Soriano Ortiz, Cecilia; Roca, Francesc Xavier; Alarcón Jordán, Marta (2004)
    Working paper
    Open Access
  • Trajectory occlusion handling with multiple view distance minimization clustering 

    Mozerov, Mikhail; Amato, Ariel; Roca, Francesc Xavier; Gonzàlez, Jordi (S P I E - International Society for Optical Engineering, 2008)
    Article
    Open Access
    A robust and efficient method for overcoming the negative effects of long-time occlusion in the tracking process is presented. The proposed approach is based on the matching of multiple trajectories in time. Trajectories ...
  • Understanding dynamic scenes based on human sequence evaluation 

    González Sabaté, Jordi; Rowe, Daniel; Varona, Javier; Roca, Francesc Xavier (2009)
    Article
    Open Access
    In this paper, a Cognitive Vision System (CVS) is presented, which explains the human behaviour of monitored scenes using naturallanguage texts. This cognitive analysis of human movements recorded in image sequences is ...