Now showing items 21-40 of 79

  • Connected Operators on 3D data for human body analysis 

    Alcoverro Vidal, Marcel; López Méndez, Adolfo; Pardàs Feliu, Montse; Casas Pla, Josep Ramon (2011)
    Conference report
    Restricted access - publisher's policy
    This paper presents a novel method for filtering and extraction of human body features from 3D data, either from multi-view images or range sensors. The proposed algorithm consists in processing the geodesic distances on ...
  • Correspondence matching in unorganized 3D point clouds using Convolutional Neural Networks 

    Pujol Miró, Alba; Casas Pla, Josep Ramon; Ruiz Hidalgo, Javier (2019-03-08)
    Article
    Restricted access - publisher's policy
    This document presents a novel method based in Convolutional Neural Networks (CNN) to obtain correspondence matchings between sets of keypoints of several unorganized 3D point cloud captures, independently of the sensor ...
  • Depth estimation and semantic segmentation from a single RGB image using a hybrid convolutional neural network 

    Lin, Xiao; Sánchez Escobedo, Dalila; Casas Pla, Josep Ramon; Pardàs Feliu, Montse (Multidisciplinary Digital Publishing Institute (MDPI), 2019-04-15)
    Article
    Open Access
    Semantic segmentation and depth estimation are two important tasks in computer vision, and many methods have been developed to tackle them. Commonly these two tasks are addressed independently, but recently the idea of ...
  • Detecting end-effectors on 2.5D data using geometric deformable models: application to human pose estimation 

    Suau Cuadros, Xavier; Ruiz Hidalgo, Javier; Casas Pla, Josep Ramon (2013-03)
    Article
    Restricted access - publisher's policy
    End-effectors are usually related to the location of limbs, and their reliable detection enables robust body tracking as well as accurate pose estimation. Recent innovation in depth cameras has re-stated the pose estimation ...
  • Elaboració de materials transversals per a l'aprenentatge actiu de les matèries de processat d'imatge i vídeo pels graus de sistemes audiovisuals i de telecomunicacions 

    Vilaplana Besler, Verónica; Casas Pla, Josep Ramon; Gasull Llampallas, Antoni; Marqués Acosta, Fernando; Morros Rubió, Josep Ramon; Pardàs Feliu, Montse; Ruiz Hidalgo, Javier; Salembier Clairon, Philippe Jean (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2013-02-08)
    Conference report / Conference lecture
    Open Access
    La finalitat del projecte ha estat promoure la col·laboració i coordinació entre les diverses assignatures de processat d'imatge i vídeo impartides per professors del Departament de TSC, als graus de telecomunicacions ...
  • FascinatE D1.1.1 End user, production and hardware and networking requirements 

    Macq, J.; Juhlin, O.; Önnevall, E.; Perry, M.; Ruiz Hidalgo, Javier; Casas Pla, Josep Ramon; Suau Cuadros, Xavier; Gibb, A.; Niamut, O.A.; Prins, M.J.; Zoric, G.; Engström, A. (2010-09-01)
    External research report
    Open Access
    This document defines the overall requirements that the FascinatE system should meet. The deliverable proposes three scenarios, depending on the configuration and functionality of the complete delivery chain, where to ...
  • Fast and robust edge extraction in unorganized point clouds 

    Bazazian, Dena; Casas Pla, Josep Ramon; Ruiz Hidalgo, Javier (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference lecture
    Restricted access - publisher's policy
    Edges provide important visual information in scene surfaces. The need for fast and robust feature extraction from 3D data is nowadays fostered by the widespread availability of cheap commercial depth sensors and multi-camera ...
  • Feature-based annealing particle filter for robust body pose estimation 

    López Méndez, Adolfo; Casas Pla, Josep Ramon (2009-02)
    Conference report
    Open Access
    This paper presents a new annealing method for particle filtering in the context of body pose estimation. The feature-based annealing is inferred from the weighting functions obtained with common image features used for ...
  • Gesture control interface for immersive panoramic displays 

    Alcoverro Vidal, Marcel; Suau, Xavier; Morros Rubió, Josep Ramon; López Méndez, Adolfo; Gil, Albert; Ruiz Hidalgo, Javier; Casas Pla, Josep Ramon (2013-07-25)
    Article
    Open Access
    In this paper, we propose a gesture-based interface designed to interact with panoramic scenes. The system combines novel static gestures with a fast hand tracking method. Our proposal is to use static gestures as shortcuts ...
  • Human Motion Analysis Module 

    López Méndez, Adolfo; Casas Pla, Josep Ramon (2009-10-09)
    External research report
    Restricted access - confidentiality agreement
    This document presents the implemented algorithms for human motion analysis within ACTIBIO. According to the systems developed in WP3 two main branches of analysis have been defined: model-based and model-free analysis. ...
  • Human motion capture using scalable body models 

    Canton Ferrer, Cristian; Casas Pla, Josep Ramon; Pardàs Feliu, Montse (2011-10)
    Article
    Restricted access - publisher's policy
    This paper presents a general analysis framework towards exploiting the underlying hierarchical and scalable structure of an articulated object for pose estimation and tracking. Scalable human body models are introduced ...
  • Hybridnet for depth estimation and semantic segmentation 

    Sánchez Escobedo, Dalila; Lin, Xiao; Casas Pla, Josep Ramon; Pardàs Feliu, Montse (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    Semantic segmentation and depth estimation are two important tasks in the area of image processing. Traditionally, these two tasks are addressed in an independent manner. However, for those applications where geometric and ...
  • Image compression based on perceptual coding techniques 

    Casas Pla, Josep Ramon (Universitat Politècnica de Catalunya, 1996-03-29)
    Doctoral thesis
    Open Access
    En aquesta tesi s'estudien els mètodes de codificació d'imatges i seqüències de vídeo des del punt de vista de la forma en què el sistema visual humà percep i entén la informació visual. La rellevància d'aquest estudi ve ...
  • Improving detection of acoustic events using audiovisual data and feature level fusion 

    Butko, Taras; Canton Ferrer, Cristian; Segura, C.; Giró Nieto, Xavier; Nadeu Camprubí, Climent; Hernando Pericás, Francisco Javier; Casas Pla, Josep Ramon (2009)
    Conference report
    Open Access
    The detection of the acoustic events (AEs) that are naturally produced in a meeting room may help to describe the human and social activity that takes place in it. When applied to spontaneous recordings, the detection ...
  • INTAIRACT: Joint hand gesture and fingertip classification for touchless interaction 

    Suau Cuadros, Xavier; Alcoverro Vidal, Marcel; López Méndez, Adolfo; Ruiz Hidalgo, Javier; Casas Pla, Josep Ramon (Springer, 2012)
    Conference lecture
    Restricted access - publisher's policy
    In this demo we present intAIRact, an online hand-based touchless interaction system. Interactions are based on easy-to-learn hand gestures, that combined with translations and rotations render a user friendly and highly ...
  • Integration of audiovisual sensors and technologies in a smart room 

    Neumann, J; Casas Pla, Josep Ramon; Macho Ciena, Dusan; Ruiz Hidalgo, Javier (2009-01)
    Article
    Open Access
    At the Technical University of Catalonia (UPC), a smart room has been equipped with 85 microphones and 8 cameras. This paper describes the setup of the sensors, gives an overview of the underlying hardware and software ...
  • Interactive registration method for 3D data fusion 

    Casanova Pagà, Arantxa; Pujol Miró, Alba; Ruiz Hidalgo, Javier; Casas Pla, Josep Ramon (2016)
    Conference report
    Restricted access - publisher's policy
    Commercial depth sensors represent an opportunity for automation of certain 3D production and analysis tasks. One way to overcome some of their inherent limitations is by capturing the same scene with several depth sensors ...
  • 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 ...