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In this paper, we report on an experiment conducted to test the effects of different hand representations on near space pointing performance and user preference. Subjects were presented with varying levels of hand realism, including real hand video, a high and a low level 3D hand model and an ordinary 3D pointer arrow. Behavioural data revealed that an abstract hand substitute like a 3D pointer arrow...
Most conventional computer-aided navigation systems assist the surgeon visually by tracking the position of an ancillary and by superposing this position into the 3D preoperative imaging exam. This paper aims at adding to such navigation systems a device that will guide the surgeon towards the target, following a complex preplanned ancillary trajectory. We propose to use tactile stimuli for such guidance,...
Abstract This paper introduces a novel pseudo-haptic approach called HEMP - hand-displacement-based pseudo-haptics. The main idea behind HEMP is to provide haptic-like sensations by dynamically displacing the visual representation of the user's hand. This paper studies the possible application of HEMP to the simulation of force fields (FF). The proposed hardware solution for simulating the hand displacement...
Three-dimensional user interfaces (3D UIs) let users interact with virtual objects, environments, or information using direct 3D input in the physical and/or virtual space. In this article, the founders and organizers of the IEEE Symposium on 3D User Interfaces reflect on the state of the art in several key aspects of 3D UIs and speculate on future research.
Describes a psychophysical experiment designed to study the phenomenon of illusion which occurs with pseudo-haptic feedback, and to identify the moment when this illusion occurs: the "boundary of illusion". The subjects were given the task of deciding which of two virtual springs is the stiffer, these springs being simulated with a PHANToM/sup TM/ force feedback device and displayed on a...
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