ENTROPiA: Towards Infinite Surface Haptic Displays in Virtual Reality Using Encountered-Type Rotating Props

Area of Science:

• Robotics
• Human-Computer Interaction
• Haptics

Background:

• Existing haptic displays often limit user motion or surface size.
• There is a need for unconstrained, free-hand interaction with large virtual surfaces.

Purpose of the Study:

• To propose and validate a new infinite surface haptic display system.
• To enable realistic rendering of large virtual surfaces with multi-textured feedback.

Main Methods:

• Developed the ENcountered-Type ROtating Prop Approach (ENTROPiA) using a robot-mounted spinning prop.
• Implemented an interaction technique tracking hand location for sliding prop movement.
• Designed a proof-of-concept system and conducted a user study.

Main Results:

• The ENTROPiA system successfully rendered the sensation of touching a large flat virtual surface.
• User study demonstrated significant performance in perceiving the haptic feedback.
• The approach allows for large motion and rendering of sliding/friction sensations.

Conclusions:

• The proposed spinning prop approach is effective for creating large-scale haptic surfaces.
• This technology has potential applications in areas like automotive rapid prototyping.
• ENTROPiA offers unconstrained, free-hand interaction with virtual environments.