Haptic footstep display

Jayakumar, Ravikrishnan P.; Mishra, Subhransu; Dannenhoffer, John F.; Okamura, Allison M.

doi:10.1109/haptic.2012.6183826

Cited by 9 publications

(6 citation statements)

References 15 publications

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“…It was shown that tactile stimulation of the feet results in illusory perceptions of whole-body leaning [16]. A haptic footstep interface provided the sensation of mechanical impacts during virtual walking [6]. Vibrations of 50 Hz applied to the feet, together with visual and auditory stimuli, was used to generate vertical illusory self-motion [9].…”

Section: Introductionmentioning

confidence: 99%

Vibrotactile inputs to the feet can modulate vection

Farkhatdinov

Ouarti

Hayward

2013

2013 World Haptics Conference (WHC)

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Vection refers to the illusion of self-motion when a significant portion of the visual field is stimulated by visual flow, while body is still. Vection is known to be strong for peripheral vision stimulation and relatively weak for central vision. In this paper, the results of an experimental study of central linear vection with and without vibrotactile feet stimulation are presented. Three types of vibratory stimuli were used: a sinusoidal signal, pink noise, and a chirp signal. Six subjects faced a screen looking at a looming visual flow that suggested virtual forward motion. The results showed that the sensation of self-motion happened faster and its intensity was the strongest for sinusoidal vibrations at constant frequency. For some subjects, a vibrotactile stimulus with an increasing frequency (a chirp) elicited as well a stronger vection. The strength of sensation of self-motion was the lowest in the cases when pink noise vibrations and no vibrotactile stimulation accompanied the visual flow stimulation. Possible application areas are mentioned.

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Section: Introductionmentioning

confidence: 99%

Vibrotactile inputs to the feet can modulate vection

Farkhatdinov

Ouarti

Hayward

2013

2013 World Haptics Conference (WHC)

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“…Only a few interfaces for walking in VR provide haptic terrain feedback (see Table 1, fourth column). Such systems mainly recreated footstep haptic sensation [20], [21], [22] to improve a user's navigation awareness during virtual walking. However, those interfaces used manual input devices to generate virtual walking, and therefore haptic feedback and locomotion control inputs were noncollocated.…”

Section: Terrain Feedback During Walking In Vrmentioning

confidence: 99%

“…The advantage of such haptic feedback shoe systems is the ability to provide natural interactive walking input and feedback as they were integrated with external motion tracking, however, the limitation is the requirement to have a relatively large physical workspace. Another approach for terrain feedback is to use haptic rendering actuators integrated into the floor [25], [20], [9], but the described floor-integrated feedback methods require additional motion tracking systems and extra workspace for implementing realistic walking inputs. Interestingly, only a few devices for providing kinesthetic feedback for walking in VR have been developed.…”

Section: Terrain Feedback During Walking In Vrmentioning

confidence: 99%

Haptic Ankle Platform for Interactive Walking in Virtual Reality

Otaran

Farkhatdinov

2022

IEEE Trans. Visual. Comput. Graphics

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This paper presents an impedance type ankle haptic interface for providing users with an immersive navigation experience in virtual reality (VR). The ankle platform, actuated by an electric motor with feedback control, enables the use of foot-tapping gestures to create a walking experience like a real one and to haptically render different types of walking terrains. Experimental studies demonstrated that the interface can be easily used to generate virtual walking and is capable of rendering terrains, such as hard and soft surfaces, and multi-layer complex dynamic terrains. The designed system is a seated-type VR locomotion interface, therefore allowing its user to maintain a stable seated posture to comfortably navigate a virtual scene.

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“…In the case of a seated walking display, the user would feel less fatigue, and the device does not require additional supports because the real walking motion is not involved. Some previous studies have attempted to represent the walking sensation to a seated user [11][12][13][14]. However, these studies focused only on the representation of leg motion or the pressure and impact applied to the sole of the foot, rather than the sole of the shoe.…”

Section: Introductionmentioning

confidence: 99%

Force Rendering and its Evaluation of a Friction-Based Walking Sensation Display for a Seated User

Kato

Kuroda

Kiyokawa

et al. 2018

IEEE Trans. Visual. Comput. Graphics

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Most existing locomotion devices that represent the sensation of walking target a user who is actually performing a walking motion. Here, we attempted to represent the walking sensation, especially a kinesthetic sensation and advancing feeling (the sense of moving forward) while the user remains seated. To represent the walking sensation using a relatively simple device, we focused on the force rendering and its evaluation of the longitudinal friction force applied on the sole during walking. Based on the measurement of the friction force applied on the sole during actual walking, we developed a novel friction force display that can present the friction force without the influence of body weight. Using performance evaluation testing, we found that the proposed method can stably and rapidly display friction force. Also, we developed a virtual reality (VR) walk-through system that is able to present the friction force through the proposed device according to the avatar's walking motion in a virtual world. By evaluating the realism, we found that the proposed device can represent a more realistic advancing feeling than vibration feedback.

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Haptic footstep display

Cited by 9 publications

References 15 publications

Vibrotactile inputs to the feet can modulate vection

Vibrotactile inputs to the feet can modulate vection

Haptic Ankle Platform for Interactive Walking in Virtual Reality

Force Rendering and its Evaluation of a Friction-Based Walking Sensation Display for a Seated User

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