Tasbi: Multisensory Squeeze and Vibrotactile Wrist Haptics for Augmented and Virtual Reality

Pezent, Evan; Israr, Ali; Samad, Majed; Robinson, Shea; Agarwal, Priyanshu; Benko, Hrvoje; Colonnese, Nick

doi:10.1109/whc.2019.8816098

Cited by 101 publications

(38 citation statements)

References 22 publications

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“…The estimated 60-dB dynamic range was based on a stimulation frequency of 250 Hz and the use of a circular contactor with a 10-mm diameter. These were selected to match the shape and size of the contactor and characteristic frequency of many widely available actuators (such as those used in the Tasbi wrist-worn device 12 ). Tactile sensitivity is known to decrease as frequency decreases below 250 Hz.…”

Section: Discussionmentioning

confidence: 99%

Sensitivity to haptic sound-localisation cues

Fletcher

Zgheib

Perry

2021

Sci Rep

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Hearing aid and cochlear implant (CI) users often struggle to locate and segregate sounds. The dominant sound-localisation cues are time and intensity differences across the ears. A recent study showed that CI users locate sounds substantially better when these cues are provided through haptic stimulation on each wrist. However, the sensitivity of the wrists to these cues and the robustness of this sensitivity to aging is unknown. The current study showed that time difference sensitivity is much poorer across the wrists than across the ears and declines with age. In contrast, high sensitivity to across-wrist intensity differences was found that was robust to aging. This high sensitivity was observed across a range of stimulation intensities for both amplitude modulated and unmodulated sinusoids and matched across-ear intensity difference sensitivity for normal-hearing individuals. Furthermore, the usable dynamic range for haptic stimulation on the wrists was found to be around four times larger than for CIs. These findings suggest that high-precision haptic sound-localisation can be achieved, which could aid many hearing-impaired listeners. Furthermore, the finding that high-fidelity across-wrist intensity information can be transferred could be exploited in human–machine interfaces to enhance virtual reality and improve remote control of military, medical, or research robots.

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Section: Discussionmentioning

confidence: 99%

Sensitivity to haptic sound-localisation cues

Fletcher

Zgheib

Perry

2021

Sci Rep

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“…An alternative can be found in wristbands displays. Prototypes that include one or two tactors [1,14] or watch with 6 tactors [19] have been proposed 1 . The wrist is however one of the less sensitive part of the body [23] and a more compact solution can be suggested through a ring device.…”

Section: Navigation Using Tactile Stimulationmentioning

confidence: 99%

Identifying Tactors Locations on the Proximal Phalanx of the Finger for Navigation

Saint-Aubert¹

2020

Haptics: Science, Technology, Applications

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Vibrotactile stimulation has been investigated to provide navigational cues through belts, vests, wrist-bands and exotic displays. A more compact solution would be the use of a ring type display. In order to test its feasibility, a user-centered experiment is conducted. The ability of participants to identify cardinal directions and inter cardinal directions by vibrotactile stimulation on the proximal phalanx is investigated. The results indicate that participants achieved 96% accuracy for cardinal directions and 69% accuracy for cardinal plus inter-cardinal directions using a static stimulation. The identification rates of dynamic stimulation are lower than that of static stimulation.

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“…The second group is composed of cutaneous devices, and it includes devices such as wristbands [19][20][21], haptic rings [22,23], and gloves [24][25][26] or mid-air tools. More in detail, cutaneous devices can be divided into the following groups:…”

Section: State Of the Artmentioning

confidence: 99%

Enhancing Interaction with Augmented Reality through Mid-Air Haptic Feedback: Architecture Design and User Feedback

Vaquero-Melchor

Bernardos

2019

Applied Sciences

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Nowadays, Augmented-Reality (AR) head-mounted displays (HMD) deliver a more immersive visualization of virtual contents, but the available means of interaction, mainly based on gesture and/or voice, are yet limited and obviously lack realism and expressivity when compared to traditional physical means. In this sense, the integration of haptics within AR may help to deliver an enriched experience, while facilitating the performance of specific actions, such as repositioning or resizing tasks, that are still dependent on the user’s skills. In this direction, this paper gathers the description of a flexible architecture designed to deploy haptically enabled AR applications both for mobile and wearable visualization devices. The haptic feedback may be generated through a variety of devices (e.g., wearable, graspable, or mid-air ones), and the architecture facilitates handling the specificity of each. For this reason, within the paper, it is discussed how to generate a haptic representation of a 3D digital object depending on the application and the target device. Additionally, the paper includes an analysis of practical, relevant issues that arise when setting up a system to work with specific devices like HMD (e.g., HoloLens) and mid-air haptic devices (e.g., Ultrahaptics), such as the alignment between the real world and the virtual one. The architecture applicability is demonstrated through the implementation of two applications: (a) Form Inspector and (b) Simon Game, built for HoloLens and iOS mobile phones for visualization and for UHK for mid-air haptics delivery. These applications have been used to explore with nine users the efficiency, meaningfulness, and usefulness of mid-air haptics for form perception, object resizing, and push interaction tasks. Results show that, although mobile interaction is preferred when this option is available, haptics turn out to be more meaningful in identifying shapes when compared to what users initially expect and in contributing to the execution of resizing tasks. Moreover, this preliminary user study reveals some design issues when working with haptic AR. For example, users may be expecting a tailored interface metaphor, not necessarily inspired in natural interaction. This has been the case of our proposal of virtual pressable buttons, built mimicking real buttons by using haptics, but differently interpreted by the study participants.

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Tasbi: Multisensory Squeeze and Vibrotactile Wrist Haptics for Augmented and Virtual Reality

Cited by 101 publications

References 22 publications

Sensitivity to haptic sound-localisation cues

Sensitivity to haptic sound-localisation cues

Identifying Tactors Locations on the Proximal Phalanx of the Finger for Navigation

Enhancing Interaction with Augmented Reality through Mid-Air Haptic Feedback: Architecture Design and User Feedback

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