Browsing by Author "Arnaldi, Bruno"

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    Authoring AR Interaction by AR
    (The Eurographics Association, 2019) Lécuyer, Flavien; Gouranton, Valérie; Reuzeau, Adrien; Gaugne, Ronan; Arnaldi, Bruno; Kakehi, Yasuaki and Hiyama, Atsushi
    The demand for augmented reality applications is rapidly growing. In many domains, we observe a new interest for this technology, stressing the need for more efficient ways of producing augmented content. Similarly to virtual reality, interactive objects in augmented reality are a powerful means to improve the experience. While it is now well democratized for virtual reality, interactivity is still finding its way into augmented reality. To open the way to this interactive augmented reality, we designed a new methodology for the management of the interactions in augmented reality, supported by an authoring tool for the use by designers and domain experts. This tool makes the production of interactive augmented content faster, while being scalable to the needs of each application. Usually in the creation of applications, a large amount of time is spent through discussions between the designer (or the domain expert), carrying the needs of the application, and the developer, holding the knowledge to create it. Thanks to our tool, we reduce this time by allowing the designer to create an interactive application, without having to write a single line of code.
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    Can You Find Your Way? Comparing Wayfinding Behaviour Between Reality and Virtual Reality
    (The Eurographics Association, 2023) Goupil, Vincent; Arnaldi, Bruno; Argelaguet, Ferran; Michaud, Anne-Solène; Gouranton, Valérie; Jean-Marie Normand; Maki Sugimoto; Veronica Sundstedt
    Signage is an essential element in finding one's way and avoiding getting lost in open and indoor environments. Yet, designing an effective signage system for a complex structure remains a challenge, as some buildings may need to communicate a lot of information in a minimum amount of space. Virtual reality (VR) provides a new way of studying human wayfinding behaviour, offering a flexible and cost-effective platform for assessing the efficiency of signage, especially during the design phase of a building. However, it is not yet clear whether wayfinding behaviour and signage interpretation differ between reality and virtual reality. We conducted a wayfinding experiment using signage with 20 participants who performed a series of tasks in virtual and real conditions. Participants were video-recorded in both conditions. In addition, oral feedback and post-experiment questionnaires were collected as supplementary data. The aim of this study was to investigate the wayfinding behaviour of a user using signs in an unfamiliar real and virtual environment. The results of the experiment showed a similarity in behaviour between both environments; regardless of the order of passage and the environment, participants required less time to complete the task during the second run by reducing their mistakes and learning from their first run.