Vibrotactile display approach that modifies roughness sensations of real textures

Asano, Shuhei; Okamoto, Shogo; Matsuura, Yoichiro; Nagano, Hikaru; Yamada, Yoji

doi:10.1109/roman.2012.6343880

Cited by 16 publications

(12 citation statements)

References 18 publications

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“…Previous studies have proposed texture-rendering techniques based on their theoretical rationale. Asano et al [23,25] proposed a method for reducing the roughness of the surface by making the surface feel slippery with a high-frequency vibration of 250 Hz. In addition, a method for increasing the perceived roughness of the surface by generating vibrations according to the moving distance of the finger was proposed [23,25].…”

Section: Texture Rendering Technique Through Vibrotactile Feedbackmentioning

confidence: 99%

“…Asano et al [23,25] proposed a method for reducing the roughness of the surface by making the surface feel slippery with a high-frequency vibration of 250 Hz. In addition, a method for increasing the perceived roughness of the surface by generating vibrations according to the moving distance of the finger was proposed [23,25]. However, this method cannot reproduce the unique textures of objects (e.g., wood grains and sandpaper roughness).…”

Section: Texture Rendering Technique Through Vibrotactile Feedbackmentioning

confidence: 99%

“…Various types of haptic devices have been proposed, ranging from heavy and grounded devices with robot arms [1,8] to exoskeletons [9][10][11], braille-type tactile displays [12], as well as light and embedded devices that use vibrations [2,[13][14][15] or electroadhesion [16]. These devices reproduce rich haptic sensations, such as repulsive forces [8,[17][18][19] or frictional forces [15,20], while touching an object, or its elasticity [15,17,21] or texture [22][23][24][25][26] in a manner. Henceforth, researchers have strived toward enhancing devices to make them more suitable for common users to incorporate into their daily lives.…”

Section: Introductionmentioning

confidence: 99%

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HAPmini: 2D haptic feedback generation using single actuator device

Kim

Hyun

2023

PLoS ONE

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This study aims to explore a feasible form of a haptic device for common users. We propose HAPmini, a novel graspable haptic device that enhances the user’s touch interaction. To achieve this enhancement, the HAPmini is designed with low mechanical complexity, few actuators, and a simple structure, while still providing force and tactile feedback to users. Despite having a single solenoid-magnet actuator and a simple structure, the HAPmini can provide haptic feedback corresponding to a user’s 2-dimensional touch interaction. Based on the force and tactile feedback, the hardware magnetic snap function and virtual texture were developed. The hardware magnetic snap function helped users perform pointing tasks by applying an external force to their fingers to enhance their touch interaction performance. The virtual texture simulated the surface texture of a specific material through vibration and delivered a haptic sensation to users. In this study, five virtual textures (i.e., reproductions of the textures of paper, jean, wood, sandpaper, and cardboard) were designed for HAPmini. Both HAPmini functions were tested in three experiments. First, a comparative experiment was conducted, and it was confirmed that the hardware magnetic snap function could increase the performance of pointing tasks to the same extent as the software magnetic snap function could, which is commonly used in graphical tools. Second, ABX and matching tests were conducted to determine whether HAPmini could generate the five virtual textures, which were designed differently and sufficiently well for the participants to be distinguished from each other. The correctness rates of the ABX and the matching tests were 97.3% and 93.3%, respectively. The results confirmed that the participants could distinguish the virtual textures generated using HAPmini. The experiments indicate that HAPmini enhances the usability of touch interaction (hardware magnetic snap function) and also provides additional texture information that was previously unavailable on the touchscreen (virtual texture).

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Section: Texture Rendering Technique Through Vibrotactile Feedbackmentioning

confidence: 99%

Section: Texture Rendering Technique Through Vibrotactile Feedbackmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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HAPmini: 2D haptic feedback generation using single actuator device

Kim

Hyun

2023

PLoS ONE

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“…They found that users tended to perceive the vibrating surface as rougher than the stationary one. Asano et al [2] proposed a method of selectively modifying the roughness sensations of real materials by applying additional vibrotactile stimuli to users' finger pads. They verified through user studies that their method successfully modulated roughness perception.…”

Section: Signal-based Modulation Of Vibrotactile Feelingsmentioning

confidence: 99%

Modulating Fine Roughness Perception of Vibrotactile Textured Surface using Pseudo-haptic Effect

Ujitoko

Ban

Hirota

2019

IEEE Trans. Visual. Comput. Graphics

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Fig. 1. Our proposed method modulates the fine roughness perception of vibrotactile textured surfaces using pseudo-haptic effect. Our user study showed that users felt the surface rougher in response to a parameter configuration of visual feedback.Abstract-Playing back vibrotactile signals through actuators is commonly used to simulate tactile feelings of virtual textured surfaces. However, there is often a small mismatch between the simulated tactile feelings and intended tactile feelings by tactile designers. Thus, a method of modulating the vibrotactile perception is required. We focus on fine roughness perception and we propose a method using a pseudo-haptic effect to modulate fine roughness perception of vibrotactile texture. Specifically, we visually modify the pointer's position on the screen slightly, which indicates the touch position on textured surfaces. We hypothesized that if users receive vibrational feedback watching the pointer visually oscillating back/forth and left/right, users would believe the vibrotactile surfaces more uneven. We also hypothesized that as the size of visual oscillation is getting larger, the amount of modification of roughness perception of vibrotactile surfaces would be larger. We conducted user studies to test the hypotheses. Results of first user study suggested that users felt vibrotactile texture with our method rougher than they did without our method at a high probability. Results of second user study suggested that users felt different roughness for vibrational texture in response to the size of visual oscillation. These results confirmed our hypotheses and they suggested that our method was effective. Also, the same effect could potentially be applied to the visual movement of virtual hands or fingertips when users are interacting with virtual surfaces using their hands.

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“…Current literature addresses tactile perception in order both to understand the mechanical signals at the origin of stimuli and to reproduce those stimuli using tactile simulators. Recent works, for example, have focused either on the analysis of signals generated by touching everyday objects, like textile fabrics [3] or on their reproduction by simulators [4,5].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the role of contact-induced vibrations in tactile discrimination of textures

Bartolomeo

Morelli

Tonazzi

et al. 2017

Mechanics & Industry

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Tactile perception of texture is meaningful for numerous industrial and social applications. While the sense of touch is provided by several contributing factors, each related to different sensory cutaneous units, textures with non-low spatial gradients can be appreciated only by the relative motion between the finger and the object. This work focuses on investigating the role that the vibrations induced during sliding contact play in the origin of tactile perception and surface texture discrimination. We shall focus in particular on the effect of the different spectral contents of the induced vibrations. To this end, first the vibration signals produced by touching different sample surfaces are recovered and analysed under controlled boundary conditions. Then, a collection of data from different subjects is recorded and reproduced by a dynamic exciter. Finally, the reproduced signals are randomly submitted to a panel of subjects in order to test their ability to distinguish the different surfaces only through their perception of the reproduced vibrations. The results, while highlighting the key role played by the spectral distribution of friction-induced vibrations, simultaneously reveal the limits of taking only vibrational signals into account if we are to achieve satisfactory recognition of the whole panel of tested textures.

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Vibrotactile display approach that modifies roughness sensations of real textures

Cited by 16 publications

References 18 publications

HAPmini: 2D haptic feedback generation using single actuator device

HAPmini: 2D haptic feedback generation using single actuator device

Modulating Fine Roughness Perception of Vibrotactile Textured Surface using Pseudo-haptic Effect

Investigation of the role of contact-induced vibrations in tactile discrimination of textures

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