Exploració per autor "Torras, Carme"
Ara es mostren els items 162-181 de 226
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Quadratic dynamic matrix control for fast cloth manipulation
Caldarelli, Edoardo; Colomé Figueras, Adrià; Ocampo-Martínez, Carlos; Torras, Carme (Institute of Electrical and Electronics Engineers (IEEE), 2023)
Text en actes de congrés
Accés obertRobotic cloth manipulation is an increasingly relevant area of research, challenging classic control algorithms due to the deformable nature of cloth. While it is possible to apply linear model predictive control to make ... -
Quick learning of cause-effects relevant for robot action
Agostini, Alejandro Gabriel; Wörgötter, Florentin; Torras, Carme (2010)
Report de recerca
Accés obertIn this work we propose a new paradigm for the rapid learning of cause-effect relations relevant for task execution. Learning occurs automatically from action experiences by means of a novel constructive learning approach ... -
Realtime tracking and grasping of a moving object from range video
Husain, Syed Farzad; Colomé Figueras, Adrià; Dellen, Babette; Alenyà Ribas, Guillem; Torras, Carme (Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés obertIn this paper we present an automated system that is able to track and grasp a moving object within the workspace of a manipulator using range images acquired with a Microsoft Kinect sensor. Realtime tracking is achieved ... -
Recognizing point clouds using conditional random fields
Husain, Syed Farzad; Dellen, Babette; Torras, Carme (Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés obertDetecting objects in cluttered scenes is a necessary step for many robotic tasks and facilitates the interaction of the robot with its environment. Because of the availability of efficient 3D sensing devices as the Kinect, ... -
Reconstruction of sampled surfaces with boundary via Morse theory
Coltraro, Franco; Amorós Torrent, Jaume; Alberich Carramiñana, Maria; Torras, Carme (European Association for Computer Graphics (Eurographics), 2023)
Text en actes de congrés
Accés obertWe study the perception problem for garments (e.g. a pair of pants) using tools from computational topology: the identification of their geometry and position from point-cloud samples, as obtained e.g. with 3D scanners. ... -
Recovering the epipolar direction from two affine views of a planar object
Alberich Carramiñana, Maria; Alenyà Ribas, Guillem; Andrade-Cetto, Juan; Martinez, Elisa; Torras, Carme (Academic Press, 2008)
Article
Accés obertThe mainstream approach to estimate epipolar geometry from two views requires matching the projections of at least 4 non-coplanar points in the scene, assuming a full projective camera model. Our work deviates from this ... -
Redundant inverse kinematics: experimental comparative review and two enhancements
Colomé Figueras, Adrià; Torras, Carme (2012)
Text en actes de congrés
Accés obertMotivated by the need of a robust and practical Inverse Kinematics (IK) algorithm for the WAM robot arm, we reviewed the most used closed-loop methods for redundant robots, analysing their main points of concern: convergence, ... -
Relational reinforcement learning for planning with exogenous effects
Martinez Martinez, David; Alenyà Ribas, Guillem; Ribeiro, Tony; Inoue, Katsumi; Torras, Carme (2017)
Article
Accés obertProbabilistic planners have improved recently to the point that they can solve difficult tasks with complex and expressive models. In contrast, learners cannot tackle yet the expressive models that planners do, which forces ... -
Relational reinforcement learning with guided demonstrations
Martínez Martínez, David; Alenyà Ribas, Guillem; Torras, Carme (2017)
Article
Accés obertModel-based reinforcement learning is a powerful paradigm for learning tasks in robotics. However, in-depth exploration is usually required and the actions have to be known in advance. Thus, we propose a novel algorithm ... -
Resource-based modality selection in robot-assisted cognitive training
Taranovic, Aleksandar; Jevtic, Aleksandar; Hernández Farigola, Joan; Tantinyà, Natalia; Abdelnour, Carla; Torras, Carme (2018)
Text en actes de congrés
Accés obertThe majority of socially assistive robots interact with their users using multiple modalities. Multimodality is an important feature that can enable them to adapt to the user behavior and the environment. In this work, we ... -
Reward-weighted GMM and its application to action-selection in robotized shoe dressing
Colomé Figueras, Adrià; Foix Salmerón, Sergi; Alenyà Ribas, Guillem; Torras, Carme (Springer, 2017)
Text en actes de congrés
Accés obertIn the context of assistive robotics, robots need to make multiple decisions. We explore the problem where a robot has multiple choices to perform a task and must select the action that maximizes success probability among ... -
Robbie, the pioneer robot nanny: science fiction helps develop ethical social opinion
Torras, Carme (2010)
Article
Accés obertI fully agree with Sharkey and Sharkey's statement that “there is a need to examine the ethical issues before the technology is developed for the mass market”, and would like to add that we should make every effort for ... -
Robot egomotion from the deformation of active contours
Alenyà Ribas, Guillem; Torras, Carme (pro Literatur Verlag, 2007)
Capítol de llibre
Accés obertTraditional sources of information for image-based computer vision algorithms have been points, lines, corners, and recently SIFT features (Lowe, 2004), which seem to represent at present the state of the art in feature ... -
Robot interaction adaptation for healthcare assistance
Andriella, Antonio; Lobo Prat, Joan; Torras, Carme; Alenyà Ribas, Guillem (2019)
Text en actes de congrés
Accés obertAssitive robotics is one of the big players in the technological revolution we are living in. Expectations are extremely high but the reality is a bit more modest. We present here two realistic initiatives towards the ... -
Robot learning from demonstration in the force domain
Rozo Castañeda, Leonel; Jiménez Schlegl, Pablo; Torras, Carme (2011)
Text en actes de congrés
Accés restringit per política de l'editorialResearchers are becoming aware of the importance of other information sources besides visual data in robot learning by demonstration (LbD). Forcebased perceptions are shown to convey very relevant information – missed by ... -
Robot learning from demonstration of force-based tasks with multiple solution trajectories
Rozo Castañeda, Leonel; Jiménez Schlegl, Pablo; Torras, Carme (2011)
Text en actes de congrés
Accés obertA learning framework with a bidirectional communication channel is proposed, where a human performs several demonstrations of a task using a haptic device (providing him/her with force-torque feedback) while a robot captures ... -
Robot learning of container-emptying skills through haptic demonstration
Rozo Castañeda, Leonel; Jiménez Schlegl, Pablo; Torras, Carme (2009)
Report de recerca
Accés obertLocally weighted learning algorithms are suitable strategies for trajectory learning and skill acquisition, in the context of programming by demonstration. Input streams other than visual information, as used in most ... -
Robot motion adaptation through user intervention and reinforcement learning
Jevtic, Aleksandar; Colomé Figueras, Adrià; Alenyà Ribas, Guillem; Torras, Carme (Elsevier, 2018-04-01)
Article
Accés obertAssistant robots are designed to perform specific tasks for the user, but their performance is rarely optimal, hence they are required to adapt to user preferences or new task requirements. In the previous work, the potential ... -
Robot pain: a speculative review of its functions
Torras, Carme (Wolters Kluwer, 2016-05)
Capítol de llibre
Accés obertGiven the scarce bibliography dealing explicitly with robot pain, this chapter has enriched its review with related research works about robot behaviours and capacities in which pain could play a role. It is shown that all ... -
Robot-aided cloth classification using depth information and CNNs
Gabas Nova, Antonio; Corona Puyane, Enric; Alenyà Ribas, Guillem; Torras, Carme (2016)
Text en actes de congrés
Accés obertWe present a system to deal with the problem of classifying garments from a pile of clothes. This system uses a robot arm to extract a garment and show it to a depth camera. Using only depth images of a partial view of the ...