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Auflistung nach Autor:in "Liu, Yu"

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  • Konferenzbeitrag
    Considerations for cross-device Augmented Reality interaction patterns in the field of cultural heritage mediation
    (INFORMATIK 2024, 2024) Liu, Yu; Spierling, Ulrike
    In museums and exhibitions, augmented reality (AR) technology increases visitor engagement by providing immersive experiences. Using an example in a natural history museum, we discuss how interaction patterns specifically developed for a head-mounted display can also be applied to hand-held devices. The aim is to use the same content on different platforms. The interaction patterns discussed are spatial guidance with following a virtual avatar, the indication of AR content in space and its activation, the control of sequential explanations, and the interaction with annotations such as precisely applied labels. Cross-device solutions and patterns are compared.
  • Textdokument
    A Tangible Object for General Purposes in Mobile Augmented Reality Applications
    (INFORMATIK 2020, 2021) Rau, Linda; Horst, Robin; Liu, Yu; Dörner, Ralf; Spierling, Ulrike
    Smartphones and tablets are common technologies within today's private living environments. They are well-suited to serve as a platform for mobile Augmented Reality (AR). Tangible AR is a subclass of AR which includes tangible objects and can make interactions intuitive. With this, new options for human-computer interaction become available at home. Based on literature research and design rationale, we identify requirements that help to develop a tangible object which can intuitively be used as tangible user interface (TUI) for mobile AR applications. Users should be able to handle the tangible object comfortably. Additionally, it needs to be reliably trackable with today's tracking algorithms. The tangible object should also offer affordances to the users. We strive to develop a single, versatile object that is usable in different application scenarios at home. Our approach is to design a tangible object that combines different surfaces and shapes to offer various affordances and interaction possibilities. A physical instance of this object can be created with a 3D printer. We argue that this allows users to trigger actions intuitively in an AR environment or to manipulate virtual content.