Now showing items 1-12 of 847

    • Visually-guided robot navigation: from artificial to natural landmarks 

      Celaya Llover, Enric; Albarral Garcia, Jose Luis; Jimenez Schlegl, Pablo; Torras, Carme (2007)
      Conference report
      Open Access
      Landmark-based navigation in unknown unstructured environments is far from solved. The bottleneck nowadays seems to be the fast detection of reliable visual references in the image stream as the robot moves. In our research, ...
    • Direct position analysis of a large family of spherical and planar parallel manipulators with four loops 

      Borràs Sol, Júlia; Di Gregorio, Raffaele (2008)
      Conference report
      Open Access
      The direct position analysis (DPA) of a manipulator is the computation of the end-effector poses (positions and orientations) compatible with assigned values of the actuated-joint variables. Assigning the actuated-joint ...
    • Natural landmark detection for visually-guided robot navigation 

      Celaya Llover, Enric; Albarral Garcia, Jose Luis; Jimenez Schlegl, Pablo; Torras, Carme (2007)
      Conference report
      Open Access
      The main difficulty to attain fully autonomous robot navigation outdoors is the fast detection of reliable visual references, and their subsequent characterization as landmarks for immediate and unambiguous recognition. ...
    • Outdoor delayed-state visually augmented odometry 

      Illa, Viorela Simona; Andrade-Cetto, Juan; Sanfeliu Cortés, Alberto (IFAC, 2007)
      Conference report
      Open Access
      This paper presents an efficient approach to outdoor visually augmented odometry. The technique computes relative pose constraints via a robust least squares minimisation of 3D point correspondences, which are in turn ...
    • Vision-based loop closing for delayed state robot mapping 

      Illa, Viorela Simona; Andrade-Cetto, Juan; Valencia Carreño, Rafael; Sanfeliu Cortés, Alberto (2007)
      Conference report
      Open Access
      This paper shows results on outdoor vision-based loop closing for Simultaneous Localization and Mapping. Our experiments show that for loops of over 50m, the pose estimates maintained with a Delayed-State Extended Information ...
    • Dynamic equations of motion for a 3-bar tensegrity based mobile robot 

      Mirats Tur, Josep Maria; Hernández Juan, Sergi; Graells Rovira, Albert (2007)
      Conference report
      Open Access
      Tensegrity structures can give a new approach to the construction of mobile robots with different shapes and properties that usual robots, wheeled or legged, do not have. Tensegrity are light, deformable structures that ...
    • Outdoor landmark-view recognition based on bipartite-graph matching and logistic regression 

      Todt, Eduardo; Torras, Carme (Institute of Electrical and Electronics Engineers (IEEE), 2007)
      Conference report
      Open Access
      This paper describes the extraction of visual landmarks from outdoor images for mobile robot applications. The concept of group of landmarks, called landmark-view, is introduced, aggregating the most relevant landmarks ...
    • Exploiting single-cycle symmetries in branch-and-prune algorithms 

      Ruiz de Angulo García, Vicente; Torras, Carme (2007)
      Conference report
      Open Access
      As a first attempt to exploit symmetries in continuous constraint problems, we focus on permutations of the variables consisting of one single cycle. We propose a procedure that takes advantage of these symmetries by ...
    • Understanding motion planning better: a comparative review of “Principles of robot motion: theory, algorithms, and implementations”, by H. Choset et al. 

      Jimenez Schlegl, Pablo (Elsevier, 2007)
      Article
      Open Access
      The textbook on Motion Planning “Principles of Robot Motion: Theory, Algorithms, and Implementations”, by H. Choset et al., MIT Press, appeared on June 2005, is reviewed and compared to other two textbooks on the same ...
    • Historia de la robótica: de Arquitas de Tarento al robot da Vinci (parte II) 

      Sanchez-Martín, Francisco M.; Jimenez Schlegl, Pablo; Millan Rodriguez, Felix; Salvador-Bayarri, Jose; Monllau Font, V.; Palou Redorta, Juan; Villavicencio Mavrich, Humberto (2007)
      Article
      Open Access
      Robotic surgery is a reality. In order to to understand how new robots work is interesting to know the history of ancient (see part i) and modern robotics. The desire to design automatic machines imitating humans continued ...
    • Cognitive system framework for brain-training exercise based on human-robot interactif 

      Andriella, Antonio; Torras, Carme; Alenyà Ribas, Guillem (2020-02-25)
      Article
      Open Access
      Every 3 seconds, someone develops dementia worldwide. Brain-training exercises, preferably involving also physical activity, have shown their potential to monitor and improve the brain function of people affected by Alzheimer ...
    • Human motion prediction via spatio-temporal inpainting 

      Hernández Ruiz, Alejandro José; Gall, Juergen; Moreno-Noguer, Francesc (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      We propose a Generative Adversarial Network (GAN) to forecast 3D human motion given a sequence of past 3D skeleton poses. While recent GANs have shown promising results, they can only forecast plausible motion over relatively ...