TextureExplorer: a tactile and force display for virtual textures

Ikei, Yasushi; Shiratori, Masashi

doi:10.1109/haptic.2002.998976

Cited by 55 publications

(35 citation statements)

References 6 publications

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“…However, researchers with the resources for such force-feedback equipment have reported successful implementation with clinical groups using the Reach-In system (Broeren, Björkdahl, Pascher, & Rydmark, 2002) and with custom-built devices for hand and ankle rehabilitation (Burdea, Popescu, Hentz, & Colbert, 2000). For tactile sense simulation, the research has primarily focused on techniques to recreate the texture of virtual surfaces using special devices and materials such as the piezo-electric elements (Hirota & Hirose, 1995;Allison, Okamura, Dennerlein, & Howe, 1998;Burdea, 1996;Ikei & Stiratori, 2002). These systems typically are applied to a relatively small skin area such as the fingertip and find very low utility in actual system deployment.…”

Section: The Interface Challenge 2: Wires and Displaysmentioning

confidence: 99%

A SWOT Analysis of the Field of Virtual Reality Rehabilitation and Therapy

Rizzo

Kim

2005

Presence: Teleoperators & Virtual Environments

739

415

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The use of virtual-reality technology in the areas of rehabilitation and therapy continues to grow, with encouraging results being reported for applications that address human physical, cognitive, and psychological functioning. This article presents a SWOT (Strengths, Weaknesses, Opportunities, and Threats) analysis for the field of VR rehabilitation and therapy. The SWOT analysis is a commonly employed framework in the business world for analyzing the factors that influence a company's competitive position in the marketplace with an eye to the future. However, the SWOT framework can also be usefully applied outside of the pure business domain. A quick check on the Internet will turn up SWOT analyses for urban-renewal projects, career planning, website design, youth sports programs, and evaluation of academic research centers, and it becomes obvious that it can be usefully applied to assess and guide any organized human endeavor designed to accomplish a mission. It is hoped that this structured examination of the factors relevant to the current and future status of VR rehabilitation will provide a good overview of the key issues and concerns that are relevant for understanding and advancing this vital application area. IntroductionVirtual reality (VR) has now emerged as a promising tool in many domains of therapy and rehabilitation (Weiss & Jessel, 1998;Glantz, Rizzo, & Graap, 2003;Zimand et al. 2003;Rizzo, Schultheis, Kerns, & Mateer, 2004). Continuing advances in VR technology, along with concomitant system-cost reductions, have supported the development of more usable, useful, and accessible VR systems that can uniquely target a wide range of physical, psychological, and cognitive rehabilitation concerns and research questions. What makes VR application development in the therapy and rehabilitation sciences so distinctively important is that it represents more than a simple linear extension of existing computer technology for human use. VR offers the potential to create systematic human testing, training, and treatment environments that allow for the precise control of complex, immersive, dynamic 3D stimulus presentations, within which sophisticated interaction, behavioral tracking, and performance recording is possible. Much like an aircraft simulator serves to test and train piloting ability, virtual environments (VEs) can be developed to present simulations that assess and rehabilitate human functional performance under a range of stimulus conditions that are not easily deliverable and controllable in the real world. When combining these assets within the context of functionally Rizzo and Kim 119

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Section: The Interface Challenge 2: Wires and Displaysmentioning

confidence: 99%

A SWOT Analysis of the Field of Virtual Reality Rehabilitation and Therapy

Rizzo

Kim

2005

Presence: Teleoperators & Virtual Environments

739

415

View full text Add to dashboard Cite

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“…Consequently, we obtained a display pad of homogeneous pin-pitch that reduces the height of the display pad by 10 mm. The operator can then feel various combinations of pin protrusions in accordance with the surface texture of the virtual object on the transducer's display pad Since the circuit of the above driver is identical to the tactile mouse that we previously reported, see (9) for details.…”

Section: Haptic Display Amentioning

confidence: 99%

“…Tactile displays are required for presenting such surface conditions as texture and for any handling tasks to develop an advanced haptic display that possesses the original haptic presentation ability and can enhance the realities of grasping objects and scanning surfaces. Although a combined system of a PHANTOM 1.5AG (from the PHANTOM series) and mechanical vibratory pin arrays was presented to realize the original haptic presentation (9) , virtual grasping has not been realized so far due to the difficulty of a master hand equipped with tactile displays. Another combined system was presented that equipped two fingers displaying rotational slippage caused during peg-in-hole tasks (10) .…”

Section: Introductionmentioning

confidence: 99%

Presentation Capability of Compound Displays for Pressure and Force

Ohka

Kato

Fujiwara

et al. 2008

JAMDSM

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The authors developed advanced haptic displays capable of stimulating the muscles and tendons of the forearms and tactile receptors in fingers to investigate tactile and force effects on simultaneous presentation. Display A is comprised of a master hand with two sets of tactile display with a 4-by-6 array of stimulus pins driven by micro-actuators and an articulated manipulator. Display B is comprised of an articulated manipulator and an 8-by-8 array type tactile display developed in a previous paper. A series of experiments was performed using the above A and B displays to verify the presentation capability of this display type. In Experiment I, subjects grasped virtual pegs and judged their diameters. In Experiment II, subjects tried to insert the pegs into holes. In Experiment III, the crossed-angle of a comparison texture was adjusted to bring it as close as possible to the standard texture fixed during experiments. Since diameter discrimination and insertion precision of the virtual peg were increased by tactile information, tactile-force presentation was effective for peg-in-hole for relatively large clearance. On the other hand, recognition capability for virtual texture was not enhanced compared to a mouse-mounted tactile display previously developed. While the pressure display is effective for instant of touch and peg rotation representations, rotation tactile imaging is not always effective for texture recognitions.

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“…Vibrotactile displays also use a pin array to produce displacements. But in contrast to shape displays, displacements in vibrotactile displays have a small amplitude and are vibratory (frequency range of about 25 to 500 Hz; e.g., Essick [1998], Ikei [2002], Ikei et al [1997], Summers et al [2001], Summers and Chanter [2002]). Vibrotactile displays create 2D rather than 3D patterns on the skin.…”

Section: Introductionmentioning

confidence: 99%

First evaluation of a novel tactile display exerting shear force via lateral displacement

Drewing

Fritschi

Zopf

et al. 2005

ACM Trans. Appl. Percept.

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Based on existing knowledge on human tactile movement perception, we constructed a prototype of a novel tactile multipin display that controls lateral pin displacement and, thus produces shear force. Two experiments focus on the question of whether the prototype display generates tactile stimulation that is appropriate for the sensitivity of human tactile perception. In particular, Experiment I studied human resolution for distinguishing between different directions of pin displacement and Experiment II explored the perceptual integration of information resulting from the displacement of multiple pins. Both experiments demonstrated that humans can discriminate between directions of the displacements, and also that the technically realized resolution of the display exceeds the perceptual resolution (>14 • ). Experiment II demonstrated that the human brain does not process stimulation from the different pins of the display independent of one another at least concerning direction. The acquired psychophysical knowledge based on this new technology will in return be used to improve the design of the display.

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TextureExplorer: a tactile and force display for virtual textures

Cited by 55 publications

References 6 publications

A SWOT Analysis of the Field of Virtual Reality Rehabilitation and Therapy

A SWOT Analysis of the Field of Virtual Reality Rehabilitation and Therapy

Presentation Capability of Compound Displays for Pressure and Force

First evaluation of a novel tactile display exerting shear force via lateral displacement

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