🔗 Research Paper

Design Space of Visual Feedforward And Corrective Feedback in...

📖 About the Paper

Overview

The paper presents a comprehensive analysis of how extended reality (XR) systems can effectively guide users in learning and perfecting physical movements. The researchers examine two critical components:

1. Motion feedforward - How the system shows users what movement to perform before they do it
2. Corrective feedback - How the system helps users identify and fix errors in their movement

Key Applications to Swing Genius

1. Feedforward Design

• Swing Genius implements the paper's "explicit" level of indirection through its Spatial Blueprints, showing users exactly how to position their club and body
• The system uses both "discrete" guidance (for specific positions) and "continuous" guidance (for fluid motion) as described in the paper
• Multiple viewing perspectives (first-person, mirror, third-person) are implemented based on the research's findings about their effectiveness for different types of movements

2. Feedback Implementation

• Swing Genius incorporates both intuitive feedback (visual misalignment between user movement and ideal form) and additional feedback (Smart Objects changing color, directional indicators)
• The system uses real-time feedback for immediate corrections and post-hoc analysis through Motion Replays, both approaches validated by the research
• Placement of feedback follows the paper's guidelines about positioning on:
  • Motion feedforward
  • Trainee's body
  • Environment

3. Scientific Validation

The paper provides academic validation for many of Swing Genius's core design choices:

• The importance of clear visual guidance for complex 3D motions
• The value of multiple feedback mechanisms