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- Nikhil Chavan Dafle, Alberto Rodriguez, +7 authors Thomas A. Fuhlbrigge
- 2014 IEEE International Conference on Robotics…
- 2014

“In-hand manipulation” is the ability to reposition an object in the hand, for example when adjusting the grasp of a hammer before hammering a nail. The common approach to in-hand manipulation with robotic hands, known as dexterous manipulation [1], is to hold an object within the fingertips of the hand and wiggle the fingers, or walk them… (More)

Grasping an object is usually only an intermediate goal for a robotic ma-nipulator. To finish the task, the robot needs to know where the object is in its hand and what action to execute. This paper presents a general statistical framework to address these problems. Given a novel object, the robot learns a statistical model of grasp state conditioned on… (More)

- Anne Holladay, Robert Paolini, Matthew T. Mason
- 2015 IEEE International Conference on Robotics…
- 2015

Pivoting is the rotation of an object between two fingers using gravity and inertial forces to impart angular momentum. We present an analysis of the mechanics of pivoting and a framework for planning and execution. Extrinsic dexterity was defined by Chavan-Dafle et al. [1] as the use of external forces, such as gravity and inertial forces in post grasp… (More)

- Jiaji Zhou, Robert Paolini, J. Andrew Bagnell, Matthew T. Mason
- 2016 IEEE International Conference on Robotics…
- 2016

We propose a polynomial force-motion model for planar sliding. The set of generalized friction loads is the 1-sublevel set of a polynomial whose gradient directions correspond to generalized velocities. Additionally, the polynomial is confined to be convex even-degree homogeneous in order to obey the maximum work inequality, symmetry, shape invariance in… (More)

- Nikhil Chavan Dafle, Alberto Rodriguez, +7 authors Thomas A. Fuhlbrigge
- 2014 IEEE International Conference on Robotics…
- 2014

This video presents the application of Extrinsic Dexterity to change the pose of an object in the hand, i.e., to regrasp the object. Gravity, inertia, arm motions and external contacts can be exploited to manipulate an object in the hand. As such dexterity does not depend solely on the intrinsic capability of the hand, but rather is derived from external… (More)

- Robert Paolini, Matthew T. Mason
- 2016 IEEE/RSJ International Conference on…
- 2016

Regrasping is the process of adjusting the position and orientation of an object in one's hand. The study of robotic regrasping has generally been limited to use of theoretical analytical models and cases with little uncertainty. Analytical models and simulations have so far proven unable to capture the complexity of the real world. Empirical statistical… (More)

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