LeviProps

Morales, Rafael; Marzo, Asier; Subramanian, Sriram; Martínez, Diego

doi:10.1145/3332165.3347882

Cited by 50 publications

(20 citation statements)

References 26 publications

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“…products in a store window). LeviProps [17] are tangible structures composed of an acoustically transparent lightweight fabric and levitating beads as anchors. LeviProps can be used as free-form interactive elements and as projection surfaces.…”

Section: Acoustic Levitationmentioning

confidence: 99%

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Levitation Simulator: Prototyping Ultrasonic Levitation Interfaces in Virtual Reality

Paneva

Bachynskyi

Müller

2020

Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems

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Figure 1: The Levitation Simulator allows to simulate interaction with a levitation interface in VR. Two user studies, comparing the real prototype (left) with the VR simulator (right), show that the VR simulation provides a good approximation of the interaction with the levitating particle in the real prototype. We share our Levitation Simulator as Open Source (www.ai8.unibayreuth.de/en/projects/Levisim), thereby democratizing levitation research and facilitating the design of applications for levitation interfaces, without the need for a levitation apparatus. ABSTRACTWe present the Levitation Simulator, a system that enables researchers and designers to iteratively develop and prototype levitation interface ideas in Virtual Reality. This includes user tests and formal experiments. We derive a model of the movement of a levitating particle in such an interface. Based on this, we develop an interactive simulation of the levitation interface in VR, which exhibits the dynamical properties of the real interface. The results of a FittsâȂŹ Law pointing study show that the Levitation Simulator enables performance, comparable to the real prototype. We developed the first two interactive games, dedicated for levitation interfaces: LeviShooter and BeadBounce, in the Levitation Simulator, and then implemented them on the real interface. Our results indicate that participants experienced similar levels of user engagement when playing the games, in the two environments. We share our Levitation Simulator as Open Source, thereby democra-Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for third-party components of this work must be honored.

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Section: Acoustic Levitationmentioning

confidence: 99%

“…Despite the potential of such interfaces and the accumulated body of research [12,17,16,6,19,2], not many applications for levitation interfaces have been developed thus far. Among the few examples are a two-platform jump game [21], and augmented static objects (e.g.…”

Section: Introductionmentioning

confidence: 99%

Levitation Simulator: Prototyping Ultrasonic Levitation Interfaces in Virtual Reality

Paneva

Bachynskyi

Müller

2020

Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems

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“…We described our four collision avoidance techniques using a simple scenario with a user-controlled particle P u and an obstacle particle P o . Complex shapes (e.g., LeviProps [13] or Floating Charts [15]) are likely to have many particles densely packed into a small area, so our collision avoidance techniques may need to deal with multiple obstacles in succession. We now discuss how each technique deals with multiple particles and highlight the implications for usability that require further investigation.…”

Section: Avoiding Multiple Collisionsmentioning

confidence: 99%

“…Polystyrene beads ( 1 mm to 3 mm) are typically used as the pixels to create point cloud representations of data [6,15]. Whilst simple in appearance, these beads can be moved rapidly with synchronised lasers to create opaque animated graphics [8,10], or used as the anchors for lightweight materials [13], allowing this technology to be used for complex and opaque in-air graphics and animations. the viewer.…”

Section: Introductionmentioning

confidence: 99%

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Avoiding Collisions when Interacting with Levitating Particle Displays

Reynal

Freeman

Brewster

2020

Extended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems

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Levitating particle displays are an emerging technology where content is composed of physical pixels. Unlike digital displays, manipulating the content is not straightforward because physical constraints affect the placement and movement of each particle: dragging a particle may cause it to collide with others along its movement path. We describe initial work into four new interaction techniques that allow users to avoid collisions when directly manipulating display content. Techniques such as these are required for interactive levitating displays to be practical when scaled up to large sizes.

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Introduction to Ultrasonic Mid-Air Haptic Effects

Hoshi¹

2022

Human–Computer Interaction Series

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LeviProps

Cited by 50 publications

References 26 publications

Levitation Simulator: Prototyping Ultrasonic Levitation Interfaces in Virtual Reality

Levitation Simulator: Prototyping Ultrasonic Levitation Interfaces in Virtual Reality

Avoiding Collisions when Interacting with Levitating Particle Displays

Introduction to Ultrasonic Mid-Air Haptic Effects

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