Ara es mostren els items 1-20 de 576

    • 2D-to-3D facial expression transfer 

      Rotger Moll, Gemma; Lumbreras, Felipe; Moreno-Noguer, Francesc; Agudo Martínez, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés obert
      Automatically changing the expression and physical features of a face from an input image is a topic that has been traditionally tackled in a 2D domain. In this paper, we bring this problem to 3D and propose a framework ...
    • 3D CNNs on distance matrices for human action recognition 

      Hernández Ruiz, Alejandro José; Porzi, Lorenzo; Rota Bulò, Samuel; Moreno-Noguer, Francesc (2017)
      Text en actes de congrés
      Accés obert
      In this paper we are interested in recognizing human actions from sequences of 3D skeleton data. For this purpose we combine a 3D Convolutional Neural Network with body representations based on Euclidean Distance Matrices ...
    • 3D human pose estimation from a single image via distance matrix regression 

      Moreno-Noguer, Francesc (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés obert
      This paper addresses the problem of 3D human pose estimation from a single image. We follow a standard two-step pipeline by first detecting the 2D position of the N body joints, and then using these observations to infer ...
    • 3D human shape and pose from a single low-resolution image with self-supervised learning 

      Xu, Xiangyu; Chen, Hao; Moreno-Noguer, Francesc; Jeni, Lázló; De La Torre, Fernando (2020)
      Text en actes de congrés
      Accés obert
      3D human shape and pose estimation from monocular images has been an active area of research in computer vision, having a substantial impact on the development of new applications, from activity recognition to creating ...
    • 3D mapping for urban service robots 

      Valencia Carreño, Rafael; Teniente López, Ernest; Trulls Fortuny, Eduard; Andrade-Cetto, Juan (IEEE Press. Institute of Electrical and Electronics Engineers, 2009-10-11)
      Text en actes de congrés
      Accés obert
      We present an approach to the problem of 3D map building in urban settings for service robots, using threedimensional laser range scans as the main data input. Our system is based on the probabilistic alignment of 3D point ...
    • 3D modelling of leaves from color and ToF data for robotized plant measuring 

      Alenyà Ribas, Guillem; Dellen, Babette; Torras, Carme (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Supervision of long-lasting extensive botanic experiments is a promising robotic application that some recent technological advances have made feasible. Plant modelling for this application has strong demands, particularly ...
    • 3d semantic representation of actions from effcient stereo-image-sequence segmentation on GPUs 

      Alexey, Abramov; Aksoy, Eren Erdal; Dörr, Johannes; Wörgötter, Florentin; Pauwels, Karl; Dellen, Babette (2010)
      Text en actes de congrés
      Accés obert
      A novel real-time framework for model-free stereo-video segmentation and stereo-segment tracking is presented, combining real-time optical flow and stereo with image segmentation running separately on two GPUs. The ...
    • 3D sensor planning framework for leaf probing 

      Foix Salmerón, Sergi; Alenyà Ribas, Guillem; Torras, Carme (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Text en actes de congrés
      Accés obert
      Modern plant phenotyping requires active sensing technologies and particular exploration strategies. This article proposes a new method for actively exploring a 3D region of space with the aim of localizing special areas ...
    • 3D vehicle detection on an FPGA from LiDAR point clouds 

      García López, Javier; Agudo Martínez, Antonio; Moreno-Noguer, Francesc (Association for Computing Machinery (ACM), 2019)
      Text en actes de congrés
      Accés obert
      In this paper is presented a deep neural network architecture designed to run on a field-programmable gate array (FPGA) for detection vehicle on LIDAR point clouds. This works present a network based on VoxelNet adapted ...
    • 3DPeople: modeling the geometry of dressed humans 

      Pumarola Peris, Albert; Sánchez Riera, Jordi; Choi, Gary; Sanfeliu Cortés, Alberto; Moreno-Noguer, Francesc (2019)
      Text en actes de congrés
      Accés obert
      Recent advances in 3D human shape estimation build upon parametric representations that model very well the shape of the naked body, but are not appropriate to represent the clothing geometry. In this paper, we present an ...
    • A comparison between model-based and data-driven leak localization methods 

      Romero Ben, Luis; Blesa Izquierdo, Joaquim; Cembrano Gennari, Gabriela; Puig Cayuela, Vicenç (2023)
      Text en actes de congrés
      Accés obert
      Water networks are crucial infrastructures for the sustainability of modern cities, and hence their proper operation is of great importance. This includes the fast detection, localization and repair of leaks, which may ...
    • A comparison between two representatives of a set of graphs: median vs barycenter graph 

      Bardaji Goikoetxea, Itziar; Ferrer Sumsi, Miquel; Sanfeliu Cortés, Alberto (Springer Verlag, 2010)
      Text en actes de congrés
      Accés obert
      In this paper we consider two existing methods to generate a representative of a given set of graphs, that satisfy the following two conditions. On the one hand, that they are applicable to graphs with any kind of labels ...
    • A comparison of three methods for measure of time to contact 

      Alenyà Ribas, Guillem; Nègre, Amaury; Crowley, James L (IEEE Press. Institute of Electrical and Electronics Engineers, 2009-10-11)
      Comunicació de congrés
      Accés obert
      Time to Contact (TTC) is a biologically inspired method for obstacle detection and reactive control of motion that does not require scene reconstruction or 3D depth estimation. Estimating TTC is difficult because it requires ...
    • A competitive strategy for function approximation in Q-learning 

      Agostini, Alejandro Gabriel; Celaya Llover, Enric (2011)
      Text en actes de congrés
      Accés obert
      In this work we propose an approach for generalization in continuous domain Reinforcement Learning that, instead of using a single function approximator, tries many different function approximators in parallel, each one ...
    • A complete method for workspace boundary determination 

      Bohigas Nadal, Oriol; Ros Giralt, Lluís; Manubens Ferriol, Montserrat (Springer Verlag, 2010)
      Text en actes de congrés
      Accés obert
    • A conductance electrical model for representing and matching weighted undirected graphs 

      Igelmo Ganzo, Manuel; Sanfeliu Cortés, Alberto; Ferrer Sumsi, Miquel (2010)
      Text en actes de congrés
      Accés obert
      In this paper we propose a conductance electrical model to represent weighted undirected graphs that allows us to efficiently compute approximate graph isomorphism in large graphs. The model is built by transforming a graph ...
    • A control-oriented hybrid modelling approach for sewer networks: Barcelona case study 

      Joseph Duran, Bernat; Ocampo-Martínez, Carlos; Cembrano Gennari, Gabriela (2013)
      Text en actes de congrés
      Accés obert
      A simplified sewer nework modelling approach based on the hybrid linear systems framework is discussed. It involives both continuous and discrete variables to include a novel approximation of the overflow and flow over ...
    • A distance-based formulation of the octahedral manipulator kinematics 

      Rojas Libreros, Nicolás Enrique; Borràs Sol, Júlia; Thomas, Federico (2010)
      Text en actes de congrés
      Accés obert
      In most practical implementations of the Gough-Stewart platform, the octahedral form is either taken as it stands or is approximated. The kinematics of this particular instance of the Gough-Stewart platform, commonly known ...
    • A distributed set-membership approach based on zonotopes for interconnected systems 

      Wang, Ye; Álamo, Teodoro; Puig Cayuela, Vicenç; Cembrano Gennari, Gabriela (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés obert
      This paper proposes a distributed set-membership approach based on zonotopes for interconnected systems with coupled states and unknown-but-bounded uncertainties (both state disturbances and measurement noise). The objective ...
    • A family of quadratically-solvable 5-SPU parallel robots 

      Borràs Sol, Júlia; Thomas, Federico; Torras, Carme (2010)
      Text en actes de congrés
      Accés obert
      A 5-SPU robot with collinear universal joints is well suited to handling an axisymmetric tool, since it has 5 controllable DoFs and the remaining one is a free rotation around the tool. The kinematics of such a robot having ...