Texture Rendering Strategies with a High Fidelity - Capacitive Visual-Haptic Friction Control Device

Vezzoli, Eric; Sednaoui, Thomas; Amberg, Michel; Giraud, Frédéric; Lemaire‐Semail, Betty

doi:10.1007/978-3-319-42321-0_23

Cited by 35 publications

(40 citation statements)

References 17 publications

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“…We used E-ViTa (Enhanced Visual-Tactile Actuator), a tactile feedback tablet based on ultrasonic vibrations to create the squeeze-film effect for haptic rendering [17]. A sine-wave grating with a spatial period of 1000 µm and an amplitude of 1.25 µm was applied to generate haptic feedback sensation to a user's fingertip.…”

Section: Methodsmentioning

confidence: 99%

Determining the haptic feedback position for optimizing the targeting performance on ultrasonic tactile displays

Kalantari

Lank

Rekik

et al. 2018

2018 IEEE Haptics Symposium (HAPTICS)

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Alongside questions of how to create haptic effects on displays via alternative hardware, recent work has explored rendering options with respect to haptic effects, i.e. when and where to provide haptic feedback. In particular, recent work by Zhang and Harrison for electrostatic haptic feedback noted that the optimal technique for haptic feedback during interaction is the Fill technique, where haptic effects are rendered at all times when a user's finger is within the bounds of the target. In this paper, we explore whether this result generalizes to an alternative haptic rendering technology that uses ultrasonic vibrations to create haptic sensations, a technique called the "Squeeze Film Effect". In contrast to prior work, our results indicate that positioning the haptic feedback as a discrete linear stimulus centred on the target provides an optimal trade-off between speed, accuracy, and user preference. We highlight the implications of this work to the generalizability of haptic feedback: Haptic feedback can improve time, errors, and user satisfaction during interaction, but only if the correct form of feedback is used for the specific haptic effect generated by the hardware.

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Section: Methodsmentioning

confidence: 99%

Determining the haptic feedback position for optimizing the targeting performance on ultrasonic tactile displays

Kalantari

Lank

Rekik

et al. 2018

2018 IEEE Haptics Symposium (HAPTICS)

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“…We first used an ultrasonic device with high temporal resolution and controlled amplitude of ultrasonic vibration [39] to investigate perception of short ultrasonic square reductions. This system includes both visual and haptic feedback ( Fig.…”

Section: Experimental Apparatusmentioning

confidence: 99%

The Perception of Ultrasonic Square Reductions of Friction With Variable Sharpness and Duration

Gueorguiev

Vezzoli

Sednaoui

et al. 2019

IEEE Trans. Haptics

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The human perception of square ultrasonic modulation of the finger-surface friction was investigated during active tactile exploration by using short frictional cues of varying duration and sharpness. In a first experiment, we asked participants to discriminate the transition time and duration of short square ultrasonic reductions of friction. They proved very sensitive to discriminate millisecond differences in these two parameters with the average psychophysical thresholds being 2.3-2.4 ms for both parameters. A second experiment focused on the perception of square friction reductions with variable transition times and durations. We found that for durations of the stimulation larger than 90 ms, participants often perceived three or four edges when only two stimulations were presented while they consistently felt two edges for signals shorter than 50 ms. A subsequent analysis of the contact forces induced by these ultrasonic stimulations during slow and fast active exploration showed that two identical consecutive ultrasonic pulses can induce significantly different frictional dynamics especially during fast motion of the finger. These results confirm the human sensitivity to transient frictional cues and suggest that the human perception of square reductions of friction can depend on their sharpness and duration as well as on the speed of exploration.

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“…We used a haptic tablet based on ultrasonic vibrations for texture rendering [11] which is developed on a Banana Pi, a single-board computer with 1 GHz ARM Cortex-A7, dual-core CPU and 1 GB of RAM working in parallel with STM32f4 microcontroller. The communication between the singleboard computer and the microcontroller is provided via the Serial Peripheral Interface (SPI) bus at 10 kHz.…”

Section: Apparatusmentioning

confidence: 99%

Finding the Minimum Perceivable Size of a Tactile Element on an Ultrasonic Based Haptic Tablet

Kalantari

Grisoni

Giraud

et al. 2016

Proceedings of the 2016 ACM International Conference on Interactive Surfaces and Spaces

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International audienceTactile devices with ultrasonic vibrations (based on squeeze film effect) using piezoelectric actuators are one of the existing haptic feedback technologies. In this study we have performed two psychophysical experiments on an ultrasonic haptic tablet, in order to find the minimum size of a tactile element on which all the users are able to perfectly identify different types of textures. Our results show that the spatial resolution of the tactile element on haptic touchscreen actually varies, depending on the number and types of tactile feedback information. A first experiment exhibits three different tactile textures, chosen as being easily recognized by users. We use these textures in a second experiment, and evaluate minimal spatial area on which the chosen set of textures can be recognized. Among other, we find the minimal size depends on the texture nature

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Texture Rendering Strategies with a High Fidelity - Capacitive Visual-Haptic Friction Control Device

Cited by 35 publications

References 17 publications

Determining the haptic feedback position for optimizing the targeting performance on ultrasonic tactile displays

Determining the haptic feedback position for optimizing the targeting performance on ultrasonic tactile displays

The Perception of Ultrasonic Square Reductions of Friction With Variable Sharpness and Duration

Finding the Minimum Perceivable Size of a Tactile Element on an Ultrasonic Based Haptic Tablet

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