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In this paper, we discuss a method for presenting virtual objects to multiple fingers on both hands using multiple single-point haptic devices operating over a network. We evaluated the effect of the number of fingers used on ability to recognize shapes using this system. The experimental results suggest that the number of contact points do not sufficiently improve the ability to recognize shapes,...
This paper presents a small and lightweight tactile display system and describes its capabilities with respect to spatial and temporal tactile feedback. Each tactile display module is comprised of a 4times4 piezoelectric ultrasonic actuator array with a spatial resolution of 1.5 mm and a temporal resolution of 20 Hz. The objective of this research is to build a small and lightweight tactile display...
We discuss the theory, design, and performance of a flat-panel tactile display capable of controlling shear force on a finger. In previous research a TPaD variable friction device was presented. It modulates friction by using vertical ultrasonic vibrations to form a squeeze film of air between the finger and the horizontal glass surface. In this research, a TPaD is oscillated in the horizontal plane...
Adding haptic stimulation to movies is a promising step in creating more emotionally immersive experiences. To explore the potential of this concept, we have created a wearable tactile jacket that is used to deliver movie-specific tactile stimuli to the viewer's body that are specifically targeted to influence the viewer's emotions. Immersion was evaluated in a user test using questionnaires and physiological...
Two experiments are described in which the task was to identify a set of stimuli that were presented both haptically and visually such that the spatiotemporal display of information was matched. The stimuli were pre-recorded movement pathways followed during the exploration of capital letters. In the haptic tasks explorers were guided along the pathways by two mechanical devices - the tactile display...
Enclosing objects in the hand is a common and efficient way of haptic exploration. Recently, the importance of grasping for more realistic haptic perception of virtual objects has been recognised in haptic interface design. While several studies on haptic perception have addressed haptic exploration of a single object, perception of several objects grasped together in the hand has received almost...
Figure copying is a complex visuo-motor skill that uses aspects of vision and memory to guide precisely directed action. Previous studies have shown that explicit visual training improves the copying abilities of young children. This study considers training in a haptic virtual environment as a method to improve copying abilities in people who show weak performance in such tasks, namely normally developing...
This paper describes development of a haptic interface using a laser range finder. The system consists of a laser range finder, a 1 degree-of-freedom haptic apparatus and a computer. The haptic apparatus can generate a reaction force based on a distance to a remote object that is measured by the laser range finder. A user can feel the shape of a remote object by holding this interface and pointing...
In order to achieve awareness of collision during teleoperation and to support operator with valuable information (object stiffness and shape), we elaborated approaches to object parameter identification and delivering this information to the operator's skin through tactile display. The tactile sensory ability of the remote manipulator allows collision detection and exploration of contacting object...
We approach the problem of determining a general method for augmenting haptic simulators to amplify the perceptually salient aspects of the interaction that induce effective skill transfer. Using such a method, we seek to simplify the design of haptic simulators that can improve training effectiveness without requiring expensive improvements in the capability of the rendering hardware. We present...
We present a new framework for information cue rendering on 2D vibrotactile arrays, and we describe an experiment that investigated the feasibility of our approach. The methods are broadly applicable, but our work is motivated by the potential for a tactile array to provide an additional useful channel for information such as location cues related to dataset features or remote user behaviors in visualization...
The aim of this demonstration is to create, at the surface of a plate, the illusion that a user is touching a finely textured surface. To achieve that, vibrations of a few micrometers at very high frequency, reduces friction between the fingertip and the vibrating surface.
Enhancing volume visualization with additional cues from our sense of touch has shown the potential to increase both speed and accuracy in the data exploration. Research in the area display a wide array of modes of interaction and many of these have been evaluated to demonstrate their capabilities. There are, however, few studies performed that compare different approaches for their strengths and...
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