Journal
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
Volume 29, Issue 11, Pages 4676-4685Publisher
IEEE COMPUTER SOC
DOI: 10.1109/TVCG.2023.3320266
Keywords
Visualization; Monitoring; Instruments; Neck; Resists; Three-dimensional displays; Mirrors; Augmented reality; Computer-assisted instruction; Graphical user interfaces
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guitARhero is an Augmented Reality application that uses responsive visualizations to teach beginners guitar playing. It supports two types of visual guidance and two display scenarios, and a user study was conducted to evaluate their effectiveness.
This paper presents guitARhero, an Augmented Reality application for interactively teaching guitar playing to beginners through responsive visualizations overlaid on the guitar neck. We support two types of visual guidance, a highlighting of the frets that need to be pressed and a 3D hand overlay, as well as two display scenarios, one using a desktop magic mirror and one using a video see-through head-mounted display. We conducted a user study with 20 participants to evaluate how well users could follow instructions presented with different guidance and display combinations and compare these to a baseline where users had to follow video instructions. Our study highlights the trade-off between the provided information and visual clarity affecting the user's ability to interpret and follow instructions for fine-grained tasks. We show that the perceived usefulness of instruction integration into an HMD view highly depends on the hardware capabilities and instruction details.
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