Now showing items 1-16 of 16

    • Detecting Partially Occluded Objects via Segmentation and Validation 

      Levihn, Martin; Dutton, Matthew; Trevor, Alexander J. B.; Stilman, Mike (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2013-01)
      This paper presents a novel algorithm: Verfied Partial Object Detector (VPOD) for accurate detection of partially occluded objects such as furniture in 3D point clouds. VPOD is implemented and validated on real sensor ...
    • Deterministic Motion Planning for Redundant Robots along End-Effector Paths 

      Quispe, Ana Huamán; Stilman, Mike (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2012-11)
      In this paper we propose a deterministic approach to solve the Motion Planning along End-Effector Paths problem (MPEP) for redundant manipulators. Most of the existing approaches are based on local optimization techniques, ...
    • Humanoid Robot Teleoperation for Tasks with Power Tools 

      O’Flaherty, Rowland; Vieira, Peter; Grey, M. X.; Oh, Paul; Bobick, Aaron; Egerstedt, Magnus B.; Stilman, Mike (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2013-04)
      This paper presents the implementation of inverse kinematics to achieve teleoperation of a physical humanoid robot platform. The humanoid platform will be used to compete in the DARPA Robot Challenge, which requires ...
    • Linguistic Composition of Semantic Maps and Hybrid Controllers 

      Dantam, Neil; Nieto-Granda, Carlos; Christensen, Henrik I.; Stilman, Mike (Georgia Institute of Technology, 2012-06)
      This work combines semantic maps with hybrid control models, generating a direct link between action and environment models to produce a control policy for mobile manipulation in unstructured environments. First, we ...
    • Linguistic Transfer of Human Assembly Tasks to Robots 

      Dantam, Neil; Essa, Irfan; Stilman, Mike (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2012-10)
      We demonstrate the automatic transfer of an assembly task from human to robot. This work extends efforts showing the utility of linguistic models in verifiable robot control policies by now performing real visual analysis ...
    • Manipulation Planning with Soft Task Constraints 

      Kunz, Tobias; Stilman, Mike (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2012-10)
      We present a randomized configuration space planner that enforces soft workspace task constraints. A soft task constraint allows an interval of feasible values while favoring a given exact value. Previous work only allows ...
    • The Motion Grammar: Analysis of a Linguistic Method for Robot Control 

      Dantam, Neil; Stilman, Mike (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2013-06)
      We present the Motion Grammar: an approach to represent and verify robot control policies based on Context-Free Grammars. The production rules of the grammar represent a top-down task decomposition of robot behavior. ...
    • Multi-Process Control Software for HUBO2 Plus Robot 

      Grey, M .X.; Dantam, Neil; Lofaro, Daniel M.; Bobick, Aaron F.; Egerstedt, Magnus B.; Oh, Paul; Stilman, Mike (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2013-04)
      Humanoid robots require greater software reliability than traditional mechantronic systems if they are to perform useful tasks in typical human-oriented environments. This paper covers a software architecture which ...
    • Multi-Robot Multi-Object Rearrangement in Assignment Space 

      Levihn, Martin; Igarashi, Takeo; Stilman, Mike (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2012-10)
      We present Assignment Space Planning, a new efficient robot multi-agent coordination algorithm for the PSPACE- hard problem of multi-robot multi-object push rearrangement. In both simulated and real robot experiments, ...
    • Path Planning with Uncertainty: Voronoi Uncertainty Fields 

      Ok, Kyel; Ansari, Sameer; Gallagher, Billy; Sica, William; Dellaert, Frank; Stilman, Mike (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2013-05)
      In this paper, a two-level path planning algorithm that deals with map uncertainty is proposed. The higher level planner uses modified generalized Voronoi diagrams to guarantee finding a connected path from the start ...
    • Planning in Constraint Space: Automated Design of Functional Structures 

      Erdogan, Can; Stilman, Mike (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2013-05)
      On the path to full autonomy, robotic agents have to learn how to manipulate their environments for their benefit. In particular, the ability to design structures that are functional in overcoming challenges is imperative. ...
    • Planning with Movable Obstacles in Continuous Environments with Uncertain Dynamics 

      Levihn, Martin; Scholz, Jonathan; Stilman, Mike (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2013-05)
      In this paper we present a decision theoretic planner for the problem of Navigation Among Movable Obstacles (NAMO) operating under conditions faced by real robotic systems. While planners for the NAMO domain exist, they ...
    • Probabilistic Human Action Prediction and Wait-sensitive Planning for Responsive Human-robot Collaboration 

      Hawkins, Kelsey P.; Vo, Nam; Bansal, Shray; Bobic, Aaron F. (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2013-10)
      A novel representation for the human component of multi-step, human-robot collaborative activity is presented. The goal of the system is to predict in a probabilistic manner when the human will perform different subtasks ...
    • Push Planning for Object Placement on Cluttered Table Surfaces 

      Cosgun, Akansel; Hermans, Tucker; Emeli, Victor; Stilman, Mike (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2011-09)
      We present a novel planning algorithm for the problem of placing objects on a cluttered surface such as a table, counter or floor. The planner (1) selects a placement for the target object and (2) constructs a sequence ...
    • Robust and Efficient Communication for Real-Time Multi-Process Robot Software 

      Dantam, Neil; Stilman, Mike (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2012-11)
      We present a new Interprocess Communication (IPC) mechanism and library. Ach is uniquely suited for coordinating drivers, controllers, and algorithms in complex robotic systems such as humanoid robots. Ach eliminates ...
    • Sampling Heuristics for Optimal Motion Planning in High Dimensions 

      Akgun, Baris; Stilman, Mike (Georgia Institute of TechnologyInstitute of Electrical and Electronics Engineers, 2011-09)
      We present a sampling-based motion planner that improves the performance of the probabilistically optimal RRT* planning algorithm. Experiments demonstrate that our planner finds a fast initial path and decreases the ...