Visually Guided Object Grasping

Radu Horaud 1 Fadi Dornaika 2 Bernard Espiau 3
1 MOVI - Modeling, localization, recognition and interpretation in computer vision
GRAVIR - IMAG - Graphisme, Vision et Robotique, Inria Grenoble - Rhône-Alpes, CNRS - Centre National de la Recherche Scientifique : FR71
3 BIP - Biped Robot
Inria Grenoble - Rhône-Alpes
Abstract : In this paper, we present a visual servoing approach to the problem of object grasping and more generally, to the problem of aligning an end-effector with an object. First we extend the method proposed by Espiau, Chaumette, and Rives (see reference [1]) to the case of a camera which is not mounted onto the robot being controlled and we stress the importance of the real-time estimation of the image Jacobian. Second, we show how to represent a grasp or more generally, an alignment between two solids in three-dimensional (3-D) projective space using an uncalibrated stereo rig. Such a 3-D projective representation is view-invariant in the sense that it can be easily mapped into an image set-point without any knowledge about the camera parameters. Third, we perform an analysis of the performances of the visual servoing algorithm and of the grasping precision that can be expected from this type of approach.
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Article dans une revue
IEEE Transactions on Robotics and Automation, Institute of Electrical and Electronics Engineers (IEEE), 1998, 14 (4), pp.525--532. 〈10.1109/70.704214〉
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Radu Horaud, Fadi Dornaika, Bernard Espiau. Visually Guided Object Grasping. IEEE Transactions on Robotics and Automation, Institute of Electrical and Electronics Engineers (IEEE), 1998, 14 (4), pp.525--532. 〈10.1109/70.704214〉. 〈inria-00590088〉

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