EGuide: Investigating different Visual Appearances and Guidance Techniques for Egocentric Guidance Visualizations

Mid-air arm movements are important for various activities. However, common resources for their self-directed practice require practitioners to divide their focus between an external source (e.g., a video screen) and moving. Past research found benefits for egocentric guidance visualizations compared to common resources. However, there is limited evidence about how such visualizations should look and behave. EGuide supports the investigation of different egocentric visualizations for the guidance of mid-air arm movements. We compared two visual appearances for egocentric guidance visualizations that differ in their shape (look), and three guidance techniques that differ by how they guide a user (behavior). For visualizations with a continuously moving guidance technique, our results suggest a higher movement accuracy for a realistic than an abstract shape. For user experience and preference, our results suggest that visualizations with an abstract shape and a guidance technique that visualizes important postures should not pause at important postures.