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Second Joint EuroHaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems (WHC'07)

Date 22-24 March 2007

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Displaying Results 1 - 25 of 127
  • Second Joint EuroHaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems - Cover

    Publication Year: 2007, Page(s): c1
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  • Second Joint EuroHaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems - Title

    Publication Year: 2007, Page(s):i - iii
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  • Second Joint EuroHaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems - Copyright

    Publication Year: 2007, Page(s): iv
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  • Second Joint EuroHaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems - Table of contents

    Publication Year: 2007, Page(s):v - xiii
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  • Message from the General Chair

    Publication Year: 2007, Page(s): xiv
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  • Committees

    Publication Year: 2007, Page(s): xv
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  • Program Committee

    Publication Year: 2007, Page(s): xvi
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  • list-reviewer

    Publication Year: 2007, Page(s): xvii
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  • Message from the IEEE Haptics Technical Committee and Task Force

    Publication Year: 2007, Page(s): xviii
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  • Message from the EuroHaptics Society

    Publication Year: 2007, Page(s): xx
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  • A Behavioral Adaptation Approach to Identifying Visual Dependence of Haptic Perception

    Publication Year: 2007, Page(s):3 - 8
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB) | HTML iconHTML

    Both haptic and visual senses play a role in how we explore our environment. Previous studies have shown that vision plays a very strong role in perception of object stiffness, yet quantification of the contributions of both haptic and visual feedback remains elusive. This study uses a behavioral adaptation approach in order to better understand how humans perceive stiffness. Namely, subjects make... View full abstract»

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  • JND Analysis of Texture Roughness Perception using a Magnetic Levitation Haptic Device

    Publication Year: 2007, Page(s):9 - 14
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (457 KB) | HTML iconHTML

    This paper describes the use of a magnetic levitation haptic device (MLHD) to study the psychophysics of texture roughness. Studies of texture roughness perception performed using real textures can be time consuming and expensive. By using a MLHD to simulate texture we are able to quickly and easily adjust texture parameters. A dithered textured surface composed of conical elements is simulated us... View full abstract»

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  • The Gestalt Principle of Continuation Applies to both the Haptic and Visual Grouping of Elements

    Publication Year: 2007, Page(s):15 - 20
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (331 KB) | HTML iconHTML

    The multi-sensory display of abstract data is a new and emerging area of study in the area of computer interfaces. Unfortunately the design of multi-sensory displays is complex and it is necessary to carefully consider the perceptual capabilities of humans. Therefore we aim to both collect useful guidelines that help designers of multi-sensory displays and to structure these guidelines by using ap... View full abstract»

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  • Haptic Feedback Enhances Force Skill Learning

    Publication Year: 2007, Page(s):21 - 26
    Cited by:  Papers (44)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (297 KB) | HTML iconHTML

    This paper explores the use of haptic feedback to teach an abstract motor skill that requires recalling a sequence of forces. Participants are guided along a trajectory and are asked to learn a sequence of one-dimensional forces via three paradigms: haptic training, visual training, or combined visuohaptic training. The extent of learning is measured by accuracy of force recall. We find that recal... View full abstract»

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  • Frequency Analysis of the Detectability of Virtual Haptic Gratings

    Publication Year: 2007, Page(s):27 - 32
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (317 KB) | HTML iconHTML

    The tactile detectability of sinusoidal and square-wave virtual texture gratings were measured and analyzed. Using a three-interval one-up three-down adaptive tracking procedure, detection thresholds for virtual gratings were estimated using a custom-designed high position-resolution 3-degrees-of-freedom force-feedback haptic device. Two types of gratings were used, defined by sinusoidal and squar... View full abstract»

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  • On the Influence of Arm Inertia and Configuration on Motion Planning of Reaching Movements in Haptic Environments

    Publication Year: 2007, Page(s):33 - 38
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (466 KB) | HTML iconHTML

    The paper presents an analysis of human reaching movements in the manipulation of flexible objects. Two models, the minimum hand jerk and the minimum driving hand force-change, are used for modeling and verification of experimental data. The data are collected with the haptic system supporting dynamic simulation of the flexible object in real time. We describe some initial experimental results and... View full abstract»

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  • Intrinsic Hand Muscle Activation for Grasp and Horizontal Transport

    Publication Year: 2007, Page(s):39 - 43
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (541 KB) | HTML iconHTML

    During object manipulation, the hand and arm muscles produce internal forces on the object (grasping forces) and forces that result in external translation or rotation of the object in space (transport forces). The present study tested whether the intrinsic hand muscles are actively involved in transport as well as grasping. Intrinsic hand muscle activity increased with increasing demands for gras... View full abstract»

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  • Vibration Enhances Geometry Perception with Tactile Shape Displays

    Publication Year: 2007, Page(s):44 - 49
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (313 KB) | HTML iconHTML

    Tactile displays can provide detailed spatial information to the skin, but little is known about the effects of vibrating displayed shapes. This study examines passive touch perception of flat and indented surfaces displayed on a 36 pin tactile display with 2 mm pin pitch. Subjects could not perceive a 0.1 mm deep central indentation when it was presented statically, but it was readily detected wh... View full abstract»

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  • Frequency dependence of perceived intensity of steering wheel vibration: effect of grip force

    Publication Year: 2007, Page(s):50 - 55
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (390 KB) | HTML iconHTML

    Vehicle drivers receive haptic feedback in response to their movement of the steering wheel and tactile feedback from various sources of vibration of the steering wheel, with the sensations varying depending on the frequency and the magnitude of the movements. From an experiment with 12 subjects, equivalent comfort contours were determined for vertical vibration of the hands with three grip forces... View full abstract»

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  • Mechanical Impedance of the Hand Holding a Spherical Tool at Threshold and Suprathreshold Stimulation Levels

    Publication Year: 2007, Page(s):56 - 60
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB) | HTML iconHTML

    We report mechanical impedance of the hand for sinusoidal stimulation at the threshold and suprathreshold levels in the frequency range of 10-500 Hz delivered through a ball-shaped interface. The participants held the ball mounted on a minishaker in a way similar to that of holding a ball interface of a force-feedback device. A minishaker excited the ball in the vertical direction, resulting in vi... View full abstract»

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  • An Experimentally Verified Model of the Perceived 'Coldness' of Objects

    Publication Year: 2007, Page(s):61 - 65
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (189 KB) | HTML iconHTML

    In this paper, a numerical model of the thermal process of touching an object is described. The model takes into account the object geometry and temperature, the thermal parameters of the material and the contact resistance between finger and object. Based on the heat extraction rate, this model predicts which materials will feel warm or cold to the touch. The model is empirically verified with ps... View full abstract»

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  • Texture Gradients and Perceptual Constancy under Haptic Exploration

    Publication Year: 2007, Page(s):66 - 71
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (431 KB) | HTML iconHTML

    Participants perceive a distal surface texture to be of a certain roughness despite being explored in different ways: by active or passive touch or at different speeds. Understanding the basis and extent of this roughness constancy is an important theoretical goal. The literature suggests that it may stem from how one class of cutaneous afferents codes texture element spacings. In different experi... View full abstract»

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  • A Visuo-Haptic Device - Telemaque - Increases Kindergarten Children's Handwriting Acquisition

    Publication Year: 2007, Page(s):72 - 77
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (721 KB) | HTML iconHTML

    The objective of the present research was to show that incorporating a visuo-haptic device 'Telemaque' may increase the fluency of handwriting production of cursive letters in kindergarten children i.e., before formal handwriting learning begins. Forty two 5 year-old children were assigned an intervention involving either Telemaque (experimental training; VH group) or not (control training; C grou... View full abstract»

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  • Evaluation of Human Performance with Kinematic and Haptic Errors

    Publication Year: 2007, Page(s):78 - 83
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (361 KB) | HTML iconHTML

    In teleoperation systems, link flexion results in kinematic errors, such that the position mapping between the master motion and slave motion is not correct. For haptic feedback teleoperators, this also causes errors in the direction of force feedback to the operator. This study examines human ability to compensate for rotational kinematic/haptic errors, where the mapping between master and slave ... View full abstract»

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  • Haptizing a Surface Height Change with Varying Stiffness Based on Force Constancy: Effect of Surface Normal Render

    Publication Year: 2007, Page(s):84 - 89
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (266 KB) | HTML iconHTML

    This work has been motivated by our prior efforts for perceptualizing the scientific data sets of surface topography and stiffness distribution measured with a scanning probe microscope. Previously, we showed that the surface topography information with varying stiffness rendered with the conventional penalty-based method can be distorted (Choi et al., 2005), and developed a topography compensatio... View full abstract»

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