Simple is Vest: High-Density Tactile Vest that Realizes Tactile Transfer of Fingers

Moriyama, Taha; Takahashi, Akifumi; Asazu, Hideyuki; Kajimoto, Hiroyuki

doi:10.1145/3355049.3360532

Cited by 6 publications

(3 citation statements)

References 3 publications

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“…There have also been some attempts to present hand-tactile information to the other parts of the body in the VR environment. It has been presented to the sole of the feet (Okano et al, 2018), forearm (Moriyama et al, 2018), and back (Moriyama et al, 2019) to assist in handling objects in VR environments. Our approach of presenting hand-tactile information to the face via an HMD-embedded tactile device is another example.…”

Section: Related Workmentioning

confidence: 99%

Design of Suction-Type Tactile Presentation Mechanism to Be Embedded in HMD

Kameoka¹,

Kajimoto²

2022

Front. Virtual Real.

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To enrich the virtual reality experience and improve realism, many studies have proposed embedding tactile devices into head-mounted displays (HMDs). However, although thermal and vibrotactile cues have become commonplace, presentation of the constant pressure necessary for softness expression remains relatively rare. In this study, we propose a suction-type tactile presentation method that addresses this issue. Through subjective evaluation and simulation using the finite element method, we verified that the proposed suction-type tactile presentation method is suitable for use with HMDs and that by increasing the number and density of the suction holes, a stronger tactile sensation can be created.

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Section: Related Workmentioning

confidence: 99%

Design of Suction-Type Tactile Presentation Mechanism to Be Embedded in HMD

Kameoka¹,

Kajimoto²

2022

Front. Virtual Real.

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“…A two-fingered glove is developed as described in [6] that can sense the pressure distribution of a fingertip with a 2 mm interval, which is equivalent to or less than the discrimination threshold of two points on the fingertip [1]. By using the glove, the pressure distribution is transferred to the back, in combination with 144 eccentric vibration motors placed on the back and the abdomen [7]. They focused on the back because the number of discriminable points on the back is greater than the number of discriminable points on the fingertips.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, it is not difficult to attach or detach the device from the back even if it is large and heavy, unlike the case with the arms and other parts of the body. Because the eccentric vibration motor has a low frequency response (150 ms) as described by [7], another prototype was also developed using 100 voice-coil type vibrators with a higher frequency response (1 ms) [8]. A prototype using a voice-coil type vibration motor showed that it is possible to support the tactile perception ability of the fingertips by transferring the fine tactile signal that is obtained from the fingertips to the back.…”

Section: Introductionmentioning

confidence: 99%

HARVEST: High-Resolution Haptic Vest and Fingertip Sensing Glove That Transfers Tactile Sensation of Fingers to the Back

Moriyama

Kajimoto

2021

Applied Sciences

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Human fingertips are densely populated with tactile receptors and are hence incredibly sensitive. However, wearing gloves on the fingers drastically reduces the tactile information available to the fingertips, such as the texture and shape of the object, and makes it difficult to perform dexterous work. As a solution, in this study, we developed a high-resolution haptic vest that transfers the tactile sensation of the fingertips to the back. The haptic vest contains 80 voice-coil type vibrators which are located at each of the two discrimination thresholds on the back and can be driven independently. The tactile sensation of the fingertips is transferred to the back using the developed haptic vest in combination with a sensing glove that can detect the pressure distribution on the finger skin at up to 100 points. Different experiments were conducted to validate the performance of the proposed haptic vest and sensing gloves. The use of the haptic vest and the sensing glove enabled the user to perceive the shape of a planar object more accurately when compared to the case where the user wore only the glove.

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