Proceedings of the 19th ACM International Conference on Multimodal Interaction 2017
DOI: 10.1145/3136755.3143020
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Textured surfaces for ultrasound haptic displays

Abstract: We demonstrate a technique for rendering textured haptic surfaces in mid-air, using an ultrasound haptic display. Our technique renders tessellated 3D 'haptic' shapes with di erent waveform properties, creating surfaces with distinct perceptions.

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Cited by 25 publications
(22 citation statements)
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References 8 publications
(16 reference statements)
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“…For example, we cannot push or squeeze the surface of a tactile cube displayed in mid-air to determine its stiffness, lift it to judge its weight, nor follow along its contours with our fingers to determine whether it is a cube or not, in the same way we would do with a physical object. While progress in perceiving material properties in mid-air, such as texture is being made [15], mid-air haptic technology faces some important challenges when geometric properties of haptic sensations are to be displayed and explored through mid-air touch. Namely, if the geometry of the displayed items remains ambiguous, e.g., if a circle were to easily be confused with a square, mid-air haptic technologies would be unsuitable for a wide range of applications that require accurate and reliable shape identification.…”
Section: Introductionmentioning
confidence: 99%
“…For example, we cannot push or squeeze the surface of a tactile cube displayed in mid-air to determine its stiffness, lift it to judge its weight, nor follow along its contours with our fingers to determine whether it is a cube or not, in the same way we would do with a physical object. While progress in perceiving material properties in mid-air, such as texture is being made [15], mid-air haptic technology faces some important challenges when geometric properties of haptic sensations are to be displayed and explored through mid-air touch. Namely, if the geometry of the displayed items remains ambiguous, e.g., if a circle were to easily be confused with a square, mid-air haptic technologies would be unsuitable for a wide range of applications that require accurate and reliable shape identification.…”
Section: Introductionmentioning
confidence: 99%
“…Monnai et al [18] varied the whole modulation signal according to the application scenario, to provide use case specific tactile effect. In general, these tactile perceptions can either be discriminative and convey information such as the texture of a pattern [4], or be affective and convey emotion [20]. It is worth mentioning that to the best of our knowledge, none of those studies use modulation frequency lower than 16 Hz.…”
Section: Tactile Patternmentioning
confidence: 99%
“…The focal point movement can be controlled fast, and there can be several focal points or shapes [31]. Also haptic textures can be displayed (e.g., [37], [10]). Ultrasonic transducer arrays can be instructed with low-level commands, but easy editors (e.g., UltraHaptics' Sensation Editor) help haptic sensation designers.…”
Section: B Ultrasound Hapticsmentioning
confidence: 99%