Holger Regenbrecht
ABSTRACT
We introduce different approaches to user interface devices that provide directed tactile feedback to the user's hand. The basic idea is to enhance the user's six degrees of freedom of interaction within virtual or augmented environments by offering an additional three-dimensional tactile feedback as an immediate, directed response from the virtual world. We also describe the prototype systems TactilePointer and TACTool, which utilize vibro-motors, alarm buzzers, and piezo bend elements as actuators in combination with magnetic and optical tracking. The prototypes have been informally tested within collision sensitive virtual environments.
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Index Terms
- Virtual reality aided assembly with directional vibro-tactile feedback
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Reviews
Ivan Flores
This paper is introduced by its abstract: We introduce different approaches to user interface devices that provide directed tactile feedback to the user's hand. The basic idea is to enhance the user's six degrees of freedom of interaction within virtual or augmented environments by offering additional three dimensional tactile feedback as an immediate directed response from the virtual world. This is an example of the authors' abstruse writing, which makes their arguments difficult to follow. In the paper, the authors begin by naming or defining concepts, including virtual reality, where the computer models reality, augmented reality, and a host of other concepts, including forced feedback. The main thrust of the paper is vibrotactile feedback (VT), which is provided to the computer user by a small loudspeaker attached to the user's hand. The loudspeaker vibrates to convey the occurrence of an event of import to the user. The paper is primarily devoted to the design and evaluation of such VT devices. However, the need for such devices is not explained. The Windows user has visual feedback from her or his display and from the position of the mouse pointer icon on the display, tactile feedback from the position of the mouse on her or his desk, and audible feedback when an event occurs. Finally, the authors compare the three feedback methods: visual, tactile, and combined visual and tactile, putting the results into a table. They note that visual feedback alone provided the fastest result. They do not explain how long it takes for subjects to learn how to use tactile feedback to improve their results, if at all. Online Computing Reviews Service
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