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Enabling multi-point haptic grasping in virtual environments

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4 Author(s)
Quan-Zen Ang ; Centre for Intell. Syst. Res. Lab., Deakin Univ., Geelong, VIC, Australia ; Horan, B. ; Najdovski, Z. ; Nahavandi, S.

Haptic interaction has received increasing research interest in recent years. Currently, most commercially available haptic devices provide the user with a single point of interaction. Multi-point haptic devices present a logical progression in device design and enable the operator to experience a far wider range of haptic interactions, particularly the ability to grasp via multiple fingers. This is highly desirable for various haptically enabled applications including virtual training, telesurgery and telemanipulation. This paper presents a gripper attachment which utilises two low-cost commercially available haptic devices to facilitate multi-point haptic grasping. It provides the ability to render forces to the user's fingers independently and using Phantom Omni haptic devices offers several benefits over more complex approaches such as low-cost, reliability, and ease of programming. The workspace of the gripper attachment is considered and in order to haptically render the desired forces to the user's fingers, kinematic analysis is discussed and necessary formulations presented. The integrated multi-point haptic platform is presented and exploration of a virtual environment using CHAI 3D is demonstrated.

Published in:

3D User Interfaces (3DUI), 2011 IEEE Symposium on

Date of Conference:

19-20 March 2011