Core Concepts
ViboPneumo is a finger-worn haptic device that modulates perceived roughness through vibrotactile and pneumatic feedback, enhancing mixed reality experiences.
Abstract
ViboPneumo is a novel haptic device that combines vibrotactile and pneumatic feedback to alter the perceived roughness of physical surfaces in mixed reality. The device aims to enhance user experience by providing realistic haptic sensations while interacting with virtual and physical objects. The study includes technical evaluations, user-perception experiments, and detailed analysis of the device's impact on texture perception.
Technical Evaluation
- Air Pressure Tracking: ViboPneumo demonstrated precise control of air pressure levels, with minimal errors in maintaining target pressures.
- Pneumatic Deformation: Finite element analysis showed consistent deformation patterns in the pneumatic actuator, ensuring smooth lifting of the fingerpad.
- Reduced Finger-Surface Contact Area: The device effectively reduced contact area between the fingerpad and surfaces, enhancing texture perception.
- Latency, Noise, and Power Consumption: ViboPneumo exhibited low latency, minimal noise levels, and manageable power consumption for extended use.
User-Perception Experiment
- Participants rated perceived roughness and other haptic dimensions on various materials under different stimuli conditions.
- Significant effects of vibrotactile and pneumatic stimuli on roughness perception were observed, with varying levels of modulation across materials.
- Participants reported enhanced texture perception with ViboPneumo, indicating its potential for improving haptic experiences in mixed reality environments.
Stats
"Our user-perception experimental results showed that ViboPneumo could effectively alter the perceived roughness of various materials, such as glass, ceramics, paper, wood, cotton, and leather."
"The pneumatic actuator can be inflated to lift the fingerpad, reducing the contact area and decreasing perceived roughness."
"The linear resonant actuator generated vibrotactile stimuli to increase perceived roughness on textured surfaces."
Quotes
"Our device aims to improve the visual-haptic matching experience in MR in an unobtrusive and fingerpad-free manner."
"ViboPneumo combines vibrotactile and pneumatic feedback to increase or reduce the perceived roughness of physical surfaces."