Now showing items 21-32 of 32

    • Real-time image segmentation on a GPU 

      Alexey, Abramov; Kulvicius, Tomas; Wörgötter, Florentin; Dellen, Babette (2010)
      Conference report
      Open Access
      Efficient segmentation of color images is important for many applications in computer vision. Non-parametric solutions are required in situations where little or no prior knowledge about the data is available. In this ...
    • Real-time segmentation of stereo videos on a portable system with a mobile GPU 

      Abramov, Alexey; Pauwels, Karl; Papon, Jeremie; Wörgötter, Florentin; Dellen, Babette (2012)
      Article
      Open Access
      In mobile robotic applications, visual information needs to be processed fast despite resource limitations of the mobile system. Here a novel real-time framework for model- free spatio-temporal segmentation of stereo ...
    • 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)
      Conference report
      Open Access
      In 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)
      Conference report
      Open Access
      Detecting 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, ...
    • Robotic leaf probing via segmentation of range data into surface patches 

      Alenyà Ribas, Guillem; Dellen, Babette; Foix Salmerón, Sergi; Torras, Carme (2012)
      Conference report
      Open Access
      We present a novel method for the robotized probing of plant leaves using Time-of-Flight (ToF) sensors. Plant images are segmented into surface patches by combining a segmentation of the infrared intensity image, provided ...
    • Robotized plant probing: leaf segmentation utilizing time-of-flight data 

      Alenyà Ribas, Guillem; Dellen, Babette; Foix Salmerón, Sergi; Torras, Carme (2013)
      Article
      Open Access
      Supervision of long-lasting extensive botanic experiments is a promising robotic application that some recent technological advances have made feasible. Plant modeling for this application has strong demands, particularly ...
    • Robust surface tracking in range image sequences 

      Husain, Syed Farzad; Dellen, Babette; Torras, Carme (2014)
      Article
      Open Access
      A novel robust method for surface tracking in range-image sequences is presented which combines a clustering method based on surface models with a particle-filter-based 2-D affine-motion estimator. Segmented regions obtained ...
    • Scene understanding using deep learning 

      Husain, Syed Farzad; Dellen, Babette; Torras, Carme (Elsevier, 2017)
      Part of book or chapter of book
      Open Access
      Automation based on artificial intelligence becomes necessary when agents such as robots are deployed to perform complex tasks. Detailed representation of a scene makes robots better aware of their surroundings, thereby ...
    • Segment tracking via a spatiotemporal linking process including feedback stabilization in an n-D lattice model 

      Dellen, Babette; Aksoy, Eren Erdal; Wörgötter, Florentin (2009)
      Article
      Open Access
      Model-free tracking is important for solving tasks such as moving-object tracking and action recognition in cases where no prior object knowledge is available. For this purpose, we extend the concept of spatially synchronous ...
    • Segmenting color images into surface patches by exploiting sparse depth data 

      Dellen, Babette; Alenyà Ribas, Guillem; Foix Salmerón, Sergi; Torras, Carme (2011)
      Conference report
      Open Access
      We present a new method for segmenting color images into their composite surfaces by combining color segmentation with model-based fitting utilizing sparse depth data, acquired using time-of-flight (Swissranger, PMD CamCube) ...
    • Simulating dynamical systems for early vision 

      Dellen, Babette; Wörgötter, Florentin (INSTICC Press. Institute for Systems and Technologies of Information, Control and Communication, 2009)
      Part of book or chapter of book
      Open Access
      We propose a novel algorithm for stereo matching using a dynamical systems approach. The stereo correspondence problem is first formulated as an energy minimization problem. From the energy function, we derive a system of ...
    • Volume measurement with a consumer depth camera based on structured infrared light 

      Dellen, Babette; Rojas Jofre, Iván Andrés (2013)
      Conference lecture
      Open Access
      The measurement of object volumes is of large importance for many sectors in industry, including agriculture, transportation, production, and forestry. In this paper, we investigate the feasibility of using commercial ...