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HoloBar: Rapid Command Execution for Head-Worn AR Exploiting Around the Field-of-View Interaction

Abstract : Inefficient menu interfaces lead to system and application commands being tedious to execute in Immersive Environments. HoloBar is a novel approach to ease the interaction with multi-level menus in immersive environments: with HoloBar, the hierarchical menu splits between the field of view (FoV) of the Head Mounted Display and the smartphone (SP). Command execution is based on around-the-FoV interaction with the SP, and touch input on the SP display. The HoloBar offers a unique combination of features, namely rapid mid-air activation, implicit selection of top-level items and preview of second-level items on the SP, ensuring rapid access to commands. In a first study we validate its activation method, which consists in bringing the SP within an activation distance from the FoV. In a second study, we compare the HoloBar to two alternatives, including the standard HoloLens menu. Results show that the HoloBar shortens each step of a multi-level menu interaction (menu activation, top-level item selection, second-level item selection and validation), with a high success rate. A follow-up study confirms that these results remain valid when compared with the two validation mechanisms of HoloLens (Air-Tap and clicker).
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Contributor : Emmanuel Dubois <>
Submitted on : Tuesday, May 18, 2021 - 2:55:37 PM
Last modification on : Wednesday, June 9, 2021 - 10:00:28 AM


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Houssem Eddine Saidi, Emmanuel Dubois, Marcos Serrano. HoloBar: Rapid Command Execution for Head-Worn AR Exploiting Around the Field-of-View Interaction. CHI Conference on Human Factors in Computing Systems (CHI 2021), ACM SIGCHI, May 2021, Online Virtual Conference (originally Yokohama, Japan), Japan. pp.1-17, ⟨10.1145/3411764.3445255⟩. ⟨hal-03228919⟩



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