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2008 Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems

13-14 March 2008

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Displaying Results 1 - 25 of 105
  • [Breaker page]

    Publication Year: 2008, Page(s): 1
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  • [Breaker page]

    Publication Year: 2008, Page(s): 1
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  • Table of contents

    Publication Year: 2008, Page(s):iii - vii
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  • [Society related mateiral]

    Publication Year: 2008, Page(s): viii
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  • [Society related mateiral]

    Publication Year: 2008, Page(s): ix
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  • Preface

    Publication Year: 2008, Page(s): x
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  • list-reviewer

    Publication Year: 2008, Page(s): xi
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  • [Society related mateiral]

    Publication Year: 2008, Page(s): xii
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  • [Breaker page]

    Publication Year: 2008, Page(s): 1
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  • The Geometric Model for Perceived Roughness Applies to Virtual Textures

    Publication Year: 2008, Page(s):3 - 10
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1160 KB) | HTML iconHTML

    A magnetic levitation haptic device (MLHD) is used to simulate a dithered textured surface made up of conical elements. A constraint surface algorithm allows the cone size, shape, mean inter-element spacing and probe size, to be varied in realtime. The high motion bandwidth, fine spatial resolution and high stiffness of the MLHD produce virtual textures with roughness perception characteristics co... View full abstract»

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  • The Integration and Dissociation of Thermal and Frictional Cues During Material Identification

    Publication Year: 2008, Page(s):11 - 16
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (588 KB) | HTML iconHTML

    This study investigated the effects of thermal and frictional cues during a forced-choice material identification task. Thermal properties of the three materials presented (pine, Lexan, aluminum) were conveyed using either real materials or a temperature-controlled aluminum pad to simulate real material effusivities. Friction either varied for the real materials presented, or was constant when the... View full abstract»

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  • Discrimination of Vowels with a Multi-finger Tactual Display

    Publication Year: 2008, Page(s):17 - 24
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (646 KB) | HTML iconHTML

    The present study compared the performance of an ideal observer and a human participant in a vowel discrimination task using a speech-to-touch coding scheme designed for a three finger tactual display. The coding scheme extracted speech features and presented them as high-frequency vibrational and low-frequency motional waveforms. The high-frequency vibrations presented crude spectral information ... View full abstract»

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  • Passive and Active Kinesthetic Perception Just-noticeable-difference for Natural Frequency of Virtual Dynamic Systems

    Publication Year: 2008, Page(s):25 - 31
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (586 KB) | HTML iconHTML

    This paper investigates the just-noticeable-difference (JND) for natural frequency of virtual second order dynamic systems. Using a one degree-of-freedom haptic device, visual and/or haptic sensory feedback were presented during interactions with the system. Participants were instructed to either perceive passively or actively excite the system in order to discriminate natural frequencies. The JND... View full abstract»

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  • [Blank page]

    Publication Year: 2008, Page(s): 32
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  • Localization and Pattern Recognition with Tactile Displays

    Publication Year: 2008, Page(s):33 - 39
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1053 KB) | HTML iconHTML

    A set of four experiments was conducted to evaluate tactile localization and tactile pattern recognition on the torso. A one- dimensional eight-tactor display and a two-dimensional 16-tactor display were used to present tactile cues to the waist and back respectively. The results from the spatial localization experiments indicated that a display with eight tactors mounted circumferentially around ... View full abstract»

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  • [Blank page]

    Publication Year: 2008, Page(s): 40
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  • Discrimination of Virtual Square Gratings by Dynamic Touch on Friction Based Tactile Displays

    Publication Year: 2008, Page(s):41 - 48
    Cited by:  Papers (17)  |  Patents (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (932 KB) | HTML iconHTML

    In this paper, we investigate the use of friction based tactile displays for the simulation of finely textured surfaces, as such displays offer a promising way for the development of devices with co-located vision and tactile feedback. The resolution of the textures rendered with such devices and their matching to real textures have never been investigated. The paper first contributes to the evalu... View full abstract»

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  • The Role of Choice in Longitudinal Recall of Meaningful Tactile Signals

    Publication Year: 2008, Page(s):49 - 56
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (874 KB) | HTML iconHTML

    Haptic icons (brief tactile stimuli with associated meanings) have the potential to convey abstract information through touch; however, there has been little systematic investigation of how sets of perceptually distinct tactile signals can be best utilized to convey meanings, nor of how enduring these associations can be. We hypothesized that when users can choose the signals which will represent ... View full abstract»

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  • Haptic Rendering and Psychophysical Evaluation of a Virtual Three-Dimensional Helical Spring

    Publication Year: 2008, Page(s):57 - 64
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (805 KB) |  Multimedia Media

    This paper presents the development of a new deformable object for haptic interaction in the form of a 3D helical spring. This haptic and visual simulation is based on an analytical model of a quasistatic spring. The model provides a real-time computationally efficient method for rendering a deformable spring using a magnetic levitation haptic device. The solution includes equations for reaction f... View full abstract»

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  • Influence of visuomotor action on visual-haptic simultaneous perception: A psychophysical study

    Publication Year: 2008, Page(s):65 - 70
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (891 KB) | HTML iconHTML

    Perceiving temporal simultaneity of cross-modal (e.g., visuo-haptic) events is very important for coherent perception and high performance in multi-modal interaction (e.g. telepresence) systems. The perception of simultaneity, however, depends on many factors, including stimulus intensity, redundant information and selective attention. In this study, we examined the effects of two factors on perce... View full abstract»

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  • Comparison of Skin Stretch and Vibrotactile Stimulation for Feedback of Proprioceptive Information

    Publication Year: 2008, Page(s):71 - 78
    Cited by:  Papers (35)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7487 KB) | HTML iconHTML

    We present the results of experiments to compare vibration and skin stretch in a virtual proprioception task in which subjects used a force sensor to control the movement of a virtual aim. Pilot experiments pointed to the need to provide the arm with varying dynamics (like a real arm) and to scale the feedback from vibratory and skin stretch displays to demonstrate a clear improvement in the accur... View full abstract»

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  • Visual-Haptic Perception of Compliance: Fusion of Visual and Haptic Information

    Publication Year: 2008, Page(s):79 - 86
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2477 KB) | HTML iconHTML

    Visual-haptic compliance perception demands processing of haptic position and force information as well as visual position information. In this study it was analyzed how different compliances are perceived and how single modality estimates are combined to a visual-haptic percept of compliance. Participants estimated the compliance of a virtual cube displayed by a human system interface. Thereby, p... View full abstract»

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  • Haptic Identification of Stiffness and Force Magnitude

    Publication Year: 2008, Page(s):87 - 91
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (750 KB) | HTML iconHTML

    As haptics becomes an integral component of scientific data visualization systems, there is a growing need to study "haptic glyphs" (building blocks for displaying information through the sense of touch) and quantify their information transmission capability. The present study investigated the channel capacity for transmitting information through stiffness or force magnitude. Specifically, we meas... View full abstract»

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  • [Blank page]

    Publication Year: 2008
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  • Assessment of Vibrotactile Feedback in a Needle-Insertion Task using a Surgical Robot

    Publication Year: 2008, Page(s):93 - 99
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2081 KB) | HTML iconHTML

    The present study examined the effect of vibrotactile feedback in a needle-insertion task using a surgical robot. Four participants performed the task by hand (using a manual needle driver instrument) and by using a surgical robot, with or without vibrotactile feedback. The vibrotactile feedback signal indicated the deviation in force direction, with the signal amplitude modulated by the force mag... View full abstract»

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