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The International Journal of Robotics Research
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Reactive Robotics I: Reactive Grasping with a Modified Gripper and Multifingered Hands

Marek Teichmann

Bud Mishra

Courant Institute, New York University, USA

We study the problem of grasping an unknown object with constant cross section using various "reactive" robot hands. In the simplest example, we equip a standard parallel-jaw gripper with several light-beam sensors (close to each jaw) and implement a reactive algorithm for grasping polygonal objects with this architecture. Extending these ideas further, we also devise two-and three-fingered reactive hands for objects with smooth boundary and equip these with distance and angle sensors that are located at the finger tips. The sensors used are simple and provide only limited and immediate information, but they allow us to reactively find a good grasp on an object of unknown geometry and dynamics. When grasped, the forces applied will be normal to the object boundary. Furthermore, in all cases, the object is not disturbed as the grasping points are being sought.

Key Words: dexterous manipulation • reactive control • grasping • closuer grasps

The International Journal of Robotics Research, Vol. 19, No. 7, 697-708 (2000)
DOI: 10.1177/027836490001900706
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Y.-B. Jia
Computation on Parametric Curves with an Application in Grasping
The International Journal of Robotics Research, August 1, 2004; 23(7-8): 827 - 857.
[Abstract] [PDF]