Journal
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
Volume 28, Issue 5, Pages 2190-2200Publisher
IEEE COMPUTER SOC
DOI: 10.1109/TVCG.2022.3150520
Keywords
Collaboration; Task analysis; Three-dimensional displays; Real-time systems; Surgery; Annotations; Image reconstruction; User Interaction; Mixed Reality; 3D Reconstruction
Categories
Funding
- German Federal Ministry of Education and Research (BMBF) [16SV8092, 16SV8090, 16SV8088]
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The study proposes the concept of "Duplicated Reality" to allow users to remotely annotate the working area in AR while being co-located with others. Results from a user study show almost identical objective and subjective outcomes compared to in-situ augmentation, except for a decrease in the consulting user's awareness of co-located users when using the proposed method. The addition of duplicating the working area into a designated consulting area provides new interaction paradigms for future co-located AR collaboration systems.
When two or more users attempt to collaborate in the same space with Augmented Reality, they often encounter conflicting intentions regarding the occupation of the same working area and self-positioning around such without mutual interference. Augmented Reality is a powerful tool for communicating ideas and intentions during a co-assisting task that requires multi-disciplinary expertise. To relax the constraint of physical co-location, we propose the concept of Duplicated Reality, where a digital copy of a 3D region of interest of the users' environment is reconstructed in real-time and visualized in-situ through an Augmented Reality user interface. This enables users to remotely annotate the region of interest while being co-located with others in Augmented Reality. We perform a user study to gain an in-depth understanding of the proposed method compared to an in-situ augmentation, including collaboration, effort, awareness, usability, and the quality of the task. The result indicates almost identical objective and subjective results, except a decrease in the consulting user's awareness of co-located users when using our method. The added benefit from duplicating the working area into a designated consulting area opens up new interaction paradigms to be further investigated for future co-located Augmented Reality collaboration systems.
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