Shifty: A Weight-Shifting Dynamic Passive Haptic Proxy to Enhance Object Perception in Virtual Reality

Area of Science:

• Virtual Reality
• Human-Computer Interaction
• Haptic Feedback

Background:

• Traditional passive haptic proxies lack adaptability.
• Active haptic systems can be complex and costly.
• A need exists for dynamic haptic feedback in VR.

Purpose of the Study:

• To introduce and evaluate Dynamic Passive Haptic Feedback (DPHF).
• To assess the effectiveness of the Shifty proxy in enhancing virtual object perception.
• To investigate multimodal feedback's role in mitigating visual-haptic mismatch.

Main Methods:

• Development of Shifty, an ungrounded weight-shifting DPHF proxy.
• Experiment 1: Evaluating Shifty's impact on perceiving virtual object shape changes.
• Experiment 2: Assessing Shifty's enhancement of virtual weight perception and multimodal feedback effects.

Main Results:

• Shifty significantly improved the perception of virtual object shape (length, thickness) and user fun/realism.
• Shifty enhanced the perception of virtual object weight by adapting kinesthetic feedback.
• Multimodal feedback (haptic, visual, auditory) helped compensate for visual-haptic mismatch.

Conclusions:

• DPHF, exemplified by Shifty, offers a novel approach to dynamic haptic feedback in VR.
• Shifty effectively enhances the perception of virtual object properties, increasing realism.
• Optimized multimodal feedback is crucial for seamless VR interactions, especially during dynamic manipulations.