A texture display using vibrotactile and electrostatic friction stimuli surpasses one based on either type of stimulus

Ito, Ken; Okamoto, Shogo; Elfekey, Hatem; Kajimto, Hiroyuki; Yamada, Yoji

doi:10.1109/smc.2017.8122972

Cited by 12 publications

(11 citation statements)

References 20 publications

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“…We used the same vibrotactile stimuli generator that was employed in a previous work [12]. The generator is composed of X-1741 voice coil actuators (Neomax Engineering Co. Ltd., Japan) to mechanically stimulate the fingertips by producing displacements in the normal direction to the panel, as illustrated in Figure 1.…”

Section: Vibrotactile Stimuli Generatormentioning

confidence: 99%

Affective Vibrotactile Stimuli: Relation between Vibrotactile Parameters and Affective Responses

Hasegawa

Okamoto

Ito

et al. 2019

IJAE

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Affective communication in the interaction with touch panel displays could be improved by vibrotactile feedback. Hence, we address the relation between vibrotactile stimuli and affective responses. Specifically, we aim to determine the response to comprehensive vibrotactile stimulus parameters, i.e., waveform, amplitude, envelope frequency, and rhythm, by rating 48 types of amplitude-modulated vibrotactile stimuli according to five affective responses: arousal, comfort, preference, familiarity, and dominance. By determining the effects of each parameter, we found that amplitude and envelope frequency were the most effective parameters triggering affective responses. Amplitude influenced arousal and dominance positively, and comfort, preference, and familiarity negatively. Envelope frequency influenced arousal and dominance negatively. In contrast, waveform and rhythm showed lower effectiveness, which contradicted expected outcomes. Likewise, we verified that affective responses mainly include two dimensions, namely, arousal (and dominance) and comfort (or valence). Overall, the results from this study serve as initial guidelines for designing electronic devices with affective vibrotactile stimuli.

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Section: Vibrotactile Stimuli Generatormentioning

confidence: 99%

Affective Vibrotactile Stimuli: Relation between Vibrotactile Parameters and Affective Responses

Hasegawa

Okamoto

Ito

et al. 2019

IJAE

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“…We used a tactile display that was developed in our previous studies [22,23] and is shown in Figure 2. This display simultaneously presents vibrotactile and electrostatic friction stimuli.…”

Section: Apparatus: Tactile Texture Display Using Vibrotactile and Elmentioning

confidence: 99%

“…The objective of the present study is to investigate whether a texture display combining vibrotactile and variable-friction stimuli presents better texture stimuli. Thus far, no studies except for our previous ones [22,23] have attempted to combine the two types of stimuli for developing quality tactile textures; however, one study reported a tactile display that could deliver both types of stimuli [41,43] using vibrotactile and friction stimuli separately for presenting fine textures and macroscopic surface profiles, respectively. The friction distribution on a plane leads to the perception of macroscopic surface profiles such as bumps and holes [26,39,42].…”

mentioning

confidence: 99%

“…Our previous experiments [22,23] indicated that the combination of two types of tactile stimulations is effective for improving the realism of virtual roughness textures. In the experiments, participants perceived virtual grating scales under three conditions: textures presented by vibrotactile stimuli, electrostatic friction, and the conjunction of vibrotactile and friction stimuli.…”

mentioning

confidence: 99%

“…In this study, we investigate the composition ratio of the two types of tactile stimulations for achieving better realism when the spatial wavelengths of virtual grating scales vary between 0.5 and 3.0mm. In other words, we compared 11 conditions, 9 of which are conjunction conditions with different vibrotactile-electrostatic composition rates whereas our previous studies [22,23] tested only one conjunction condition. The acquisition of a better composition ratio for each roughness scale would contribute to the design of the hardware and rendering algorithms of tactile texture displays.…”

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confidence: 99%

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Tactile Texture Display with Vibrotactile and Electrostatic Friction Stimuli Mixed at Appropriate Ratio Presents Better Roughness Textures

Ito

Okamoto

Yamada

et al. 2019

ACM Trans. Appl. Percept.

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Vibrotactile and friction texture displays are good options for artificially presenting the roughness and frictional properties of textures, respectively. These two types of displays are compatible with touch panels and exhibit complementary characteristics. We combine vibrotactile and electrostatic friction texture displays to improve the quality of virtual textures, considering that actual textured surfaces are composed of both properties. We investigate their composition ratios when displaying roughness textures. Grating roughness scales with one of the six surface wavelengths are generated under 11 display conditions, and in 9 of which, vibrotactile and friction stimuli are combined with different composition ratios. A forced-choice experiment regarding subjective realism indicates that a vibrotactile stimulus with a slight variable-friction stimulus is effective for presenting quality textures for surface wavelengths greater than or equal to 1.0mm. CCS Concepts: • Human-centered computing → Laboratory experiments; Empirical studies in HCI; • Hardware → Haptic devices;

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Mechanical Vibration Influences the Perception of Electrovibration

Ryu

Pyo

Lim

et al. 2018

Sci Rep

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Recently, various methods using, simultaneously, two types of tactile feedback have been proposed to emulate a real object. However, the possible masking effect when providing two types of tactile feedback has been scarcely reported. In this study, we investigated the masking effect caused by mechanical vibration on the perception of electrovibration. The absolute and difference thresholds of the electrovibration were measured according to the presence/absence, frequency, and intensity of the mechanical vibration. The absolute threshold of electrovibration tended to increase in the form of a ramp function, as the intensity of the masking stimulus (mechanical vibration) increased. Particularly, the masking effect was more remarkable when the frequency of both the target and the masking stimulus was the same (up to 13 dB increase with 25 dB SL masker). Furthermore, the difference in the threshold (average of 1.21 dB) did not significantly change due to the masking stimulus, when the sensation level intensity of the target stimulus was within the section following the Weber’s law. The results further indicated that electrovibration contributes to the activation of slowly adapting afferents as well. This investigation will provide important guidelines for the design of haptic interface that employs multiple types of tactile feedback.

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A texture display using vibrotactile and electrostatic friction stimuli surpasses one based on either type of stimulus

Cited by 12 publications

References 20 publications

Affective Vibrotactile Stimuli: Relation between Vibrotactile Parameters and Affective Responses

Affective Vibrotactile Stimuli: Relation between Vibrotactile Parameters and Affective Responses

Tactile Texture Display with Vibrotactile and Electrostatic Friction Stimuli Mixed at Appropriate Ratio Presents Better Roughness Textures

Mechanical Vibration Influences the Perception of Electrovibration

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