Now showing items 576-595 of 1552

    • Grammatical Methods in Computer Vision: An Overview 

      Chanda, Gaurav; Dellaert, Frank (Georgia Institute of Technology, 2004)
      We review various methods and applications that have used grammars for solving inference problems in computer vision and pattern recognition. Grammars have been useful because they are intuitively simple to understand, and ...
    • A granular approach to the automation of bioregenerative life support systems that enhances situation awareness 

      Drayer, Gregorio E.; Howard, Ayanna M. (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2012-03)
      Bioregenerative life support systems introduce novel challenges for the development of model-based approaches to their control given the varying characteristic of the biological processes that constitute them. Switching ...
    • Granular impact and the critical packing state 

      Umbanhowar, Paul B.; Goldman, Daniel I. (Georgia Institute of TechnologyAmerican Physical Society, 2010-07-15)
      Impact dynamics during collisions of spheres with granular media reveal a pronounced and nontrivial dependence on volume fraction ϕ. Postimpact crater morphology identifies the critical packing state ϕcps, where sheared ...
    • A Granular Multi-Sensor Data Fusion Method for Life Support Systems that Enhances Situation Awareness 

      Drayer, Gregorio E.; Howard, Ayanna M. (Georgia Institute of Technology, 2012-05)
      Slow-changing characteristics of controlled environmental systems and the increasing availability of data from sensors and measurements o er opportunities for the development of computational methods that enhance situation ...
    • A Granular Multi-Sensor Data Fusion Method for Situation Observability in Life Support Systems 

      Drayer, Gregorio E.; Howard, Ayanna M. (Georgia Institute of TechnologyAmerican Institute of Aeronautics and Astronautics, Inc., 2012-07)
      Slow-changing characteristics of controlled environmental systems and the increasing availability of data from sensors and measurements offer opportunities for the development of computational methods to enhance situation ...
    • Graph Process Specifications for Hybrid Networked Systems 

      Martin, Patrick; Egerstedt, Magnus B.; Twu, Philip Y. (Georgia Institute of Technology, 2010-08)
      Research in multi-agent systems has supplied a diverse collection of decentralized controllers to accomplish specific tasks. When agents execute a sequence of these controllers, the network behaves as a hybrid system, ...
    • Graph Process Specifications for Hybrid Networked Systems 

      Twu, Philip Y.; Martin, Patrick; Egerstedt, Magnus B. (Georgia Institute of TechnologySpringer, 2012-12)
      Many large-scale multi-agent missions consist of a sequence of subtasks, each of which can be accomplished separately by having agents execute appropriate decentralized controllers. However, many decentralized controllers ...
    • Graph Theoretic Connectivity Control of Mobile Robot Networks 

      Zavlanos, Michael M.; Egerstedt, Magnus B.; Pappas, George J. (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2011)
      In this paper we provide a theoretical framework for controlling graph connectivity in mobile robot networks. We discuss proximity-based communication models composed of disk-based or uniformly fading signal strength ...
    • Graph-based Path Planning for Mobile Robots 

      Wooden, David T. (Georgia Institute of Technology, 2006-11-16)
      In this thesis, questions of navigation, planning and control of real-world mobile robotic systems are addressed. Chapter II contains the first contribution in this thesis, which is a modification of ...
    • Graph-Theoretic Methods for Multi-Agent Coordination 

      Egerstedt, Magnus B. (Georgia Institute of Technology, 2007-09)
      By ignoring the geometric constraints that inevitably govern inter-robot interactions in decentralized robot networks, a purely combinatorial description of the network is obtained. In fact, it can be described as a ...
    • Graphical SLAM for Outdoor Applications 

      Folkesson, John; Christensen, Henrik I. (Georgia Institute of TechnologyJohn Wiley & Sons, 2007-02)
      Application of SLAM outdoors is challenged by complexity, handling of non-linearities and flexible integration of a diverse set of features. A graphical approach to SLAM is introduced that enables flexible data-association. ...
    • Graphs, Simplicial Complexes and Beyond: Topological Tools for Multi-agent Coordination 

      Muhammad, Abubakr (Georgia Institute of Technology, 2005-12-16)
      In this work, connectivity graphs have been studied as models of local interactions in multi-agent robotic systems. A systematic study of the space of connectivity graphs has been done from a geometric and topological point ...
    • Gravity and Drift in Force/Torque Measurements 

      Erdogan, Can; Zafar, Munzir; Stilman, Mike (2014)
    • Greedy Mapping of Terrain 

      Koenig, Sven; Halliburton, William; Tovey, Craig A. (Georgia Institute of Technology, 2001)
      We study a greedy mapping method that always moves the robot from its current location to the closest location that it has not visited (or observed) yet, until the terrain is mapped. Although one does not expect such a ...
    • Group-Size Selection for a Parameterized Class of Predator-Prey Models 

      de la Croix, Jean-Pierre; Egerstedt, Magnus (Georgia Institute of Technology, 2014-07)
      In this paper, we investigate whether we can qualitatively recover the appropriate group sizes for a team of predators by varying environmental and operational conditions. The result is a combination of biologically ...
    • GroupSAC: Efficient Consensus in the Presence of Groupings 

      Ni, Kai; Jin, Hailin; Dellaert, Frank (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2009-09)
      We present a novel variant of the RANSAC algorithm that is much more efficient, in particular when dealing with problems with low inlier ratios. Our algorithm assumes that there exists some grouping in the data, based ...
    • Guidance, Navigation, Control, and Operator Interfaces for Small Rapid Response Unmanned Helicopters 

      Christmann, Hans Claus; Christophersen, Henrik B.; Wu, Allen D.; Johnson, Eric N. (Georgia Institute of Technology, 2008-04)
      This paper focuses on the development of small rapid response reconnaissance unmanned helicopters (1 to 3 kg, electric), for use by the military in urban areas and by civilian first responders, in terms of system ...
    • Guided Pushing for Object Singulation 

      Hermans, Tucker; Rehg, James M.; Bobick, Aaron (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2012-10)
      We propose a novel method for a robot to separate and segment objects in a cluttered tabletop environment. The method leverages the fact that external object boundaries produce visible edges within an object cluster. ...
    • Guided teaching interactions with robots: embodied queries and teaching heuristics 

      Cakmak, Maya (Georgia Institute of Technology, 2012-05-17)
      The vision of personal robot assistants continues to become more realistic with technological advances in robotics. The increase in the capabilities of robots, presents boundless opportunities for them to perform useful ...
    • Hand It Over or Set It Down: A User Study of Object Delivery with an Assistive Mobile Manipulator 

      Choi, Young Sang; Chen, Tiffany L.; Jain, Advait; Anderson, Cressel D.; Glass, Jonathan D.; Kemp, Charles C. (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2009)
      Delivering an object to a user would be a generally useful capability for service robots. Within this paper, we look at this capability in the context of assistive object retrieval for motor-impaired users. We first describe ...