ICAT-EGVE2020

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https://diglib.eg.org/handle/10.2312/2632961

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Browsing ICAT-EGVE2020 by Subject "General and reference"

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    A Review of Visual Perception Research in Optical See-Through Augmented Reality
    (The Eurographics Association, 2020) Erickson, Austin; Kim, Kangsoo; Bruder, Gerd; Welch, Gregory F.; Argelaguet, Ferran and McMahan, Ryan and Sugimoto, Maki
    In the field of augmented reality (AR), many applications involve user interfaces (UIs) that overlay visual information over the user's view of their physical environment, e.g., as text, images, or three-dimensional scene elements. In this scope, optical seethrough head-mounted displays (OST-HMDs) are particularly interesting as they typically use an additive light model, which denotes that the perception of the displayed virtual imagery is a composite of the lighting conditions of one's environment, the coloration of the objects that make up the virtual imagery, and the coloration of physical objects that lay behind them. While a large body of literature focused on investigating the visual perception of UI elements in immersive and flat panel displays, comparatively less effort has been spent on OST-HMDs. Due to the unique visual effects with OST-HMDs, we believe that it is important to review the field to understand the perceptual challenges, research trends, and future directions. In this paper, we present a systematic survey of literature based on the IEEE and ACM digital libraries, which explores users' perception of displaying text-based information on an OST-HMD, and aim to provide relevant design suggestions based on the meta-analysis results. We carefully review 14 key papers relevant to the visual perception research in OST-HMDs with UI elements, and present the current state of the research field, associated trends, noticeable research gaps in the literature, and recommendations for potential future research in this domain.
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    A Systematic Literature Review of Embodied Augmented Reality Agents in Head-Mounted Display Environments
    (The Eurographics Association, 2020) Norouzi, Nahal; Kim, Kangsoo; Bruder, Gerd; Erickson, Austin; Choudhary, Zubin; Li, Yifan; Welch, Greg; Argelaguet, Ferran and McMahan, Ryan and Sugimoto, Maki
    Embodied agents, i.e., computer-controlled characters, have proven useful for various applications across a multitude of display setups and modalities. While most traditional work focused on embodied agents presented on a screen or projector, and a growing number of works are focusing on agents in virtual reality, a comparatively small number of publications looked at such agents in augmented reality (AR). Such AR agents, specifically when using see-through head-mounted displays (HMDs) as the display medium, show multiple critical differences to other forms of agents, including their appearances, behaviors, and physical-virtual interactivity. Due to the unique challenges in this specific field, and due to the comparatively limited attention by the research community so far, we believe that it is important to map the field to understand the current trends, challenges, and future research. In this paper, we present a systematic review of the research performed on interactive, embodied AR agents using HMDs. Starting with 1261 broadly related papers, we conducted an in-depth review of 50 directly related papers from 2000 to 2020, focusing on papers that reported on user studies aiming to improve our understanding of interactive agents in AR HMD environments or their utilization in specific applications. We identified common research and application areas of AR agents through a structured iterative process, present research trends, and gaps, and share insights on future directions.