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  • 1.
    Andel, Miroslav
    et al.
    Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.
    Petrovski, Alexander
    Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.
    Henrysson, Anders
    Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.
    Ollila, Mark
    Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.
    Interactive Collaborative Scene Assembly Using AR on Mobile Phones2006In: Artificial Reality and Telexistence, ICAT, Springer , 2006, p. 1008-1017Conference paper (Refereed)
    Abstract [en]

    In this paper we present and evaluate a platform for interactive collaborative face-to-face Augmented Reality using a distributed scene graph on mobile phones. The results of individual actions are viewed on the screen in real-time on every connected phone. We show how multiple collaborators can use consumer mobile camera phones to furnish a room together in an Augmented Reality environment. We have also presented a user case study to investigate how untrained users adopt this novel technology and to study the collaboration between multiple users. The platform is totally independent of a PC server though it is possible to connect a PC client to be used for high quality visualization on a big screen device such as a projector or a plasma display.

  • 2.
    Henrysson, Anders
    et al.
    Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.
    Billinghurst, Mark
    HITLabNZ University of Canterbury.
    Ollila, Mark
    Linköping University, The Institute of Technology. Linköping University, Department of Science and Technology.
    AR Tennis2006In: ACM SIGGRAPH 2006 Sketches,2006, New York, NY, USA: ACM Press , 2006, p. 13-Conference paper (Refereed)
    Abstract [en]

        

  • 3.
    Henrysson, Anders
    et al.
    Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.
    Billinghurst, Mark
    HIT Lab NZ, University of Canterbury, NZ.
    Ollila, Mark
    Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
    Face to Face Collaborative AR on Mobile Phones2005In: Proceedings of the Fourth IEEE and ACM international Symposium on Mixed and Augmented Reality, 2005, p. 80-89Conference paper (Other academic)
    Abstract [en]

    Mobile phones are an ideal platform for augmented reality. In this paper we describe how they also can be used to support face to face collaborative AR applications. We have created a custom port of the ARToolKit library to the Symbian mobile phone operating system and then developed a sample collaborative AR game based on this. We describe the game in detail and user feedback from people who have played it. We also provide general design guidelines that could be useful for others who are developing mobile phone collaborative AR applications.

  • 4.
    Henrysson, Anders
    et al.
    Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.
    Billinghurst, Mark
    HITLAB University of Canterbury in Christchurch, NZ.
    Ollila, Mark
    Linköping University, The Institute of Technology. Linköping University, Department of Science and Technology.
    Mobile Phone Augmented Reality - Experiments and Applications2005In: SIGRAD Annual Conference,2005, Linköping, Sweden: University of Linköping Press , 2005, p. 35-Conference paper (Refereed)
  • 5.
    Henrysson, Anders
    et al.
    Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.
    Billinghurst, Mark
    HIT Lab NZ, University of Canterbury, NZ.
    Ollila, Mark
    Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
    Virtual Object Manipulation using a Mobile Phone2005In: Proceedings of the 2005 international Conference on Augmented Tele-Existence, 2005, p. 164-171Conference paper (Other academic)
    Abstract [en]

    Augmented Reality (AR) on mobile phones has reached a level of maturity where it can be used as a tool for 3D object manipulation. In this paper we look at user interface issues where an AR enabled mobile phone acts as an interaction device. We discuss how traditional 3D manipulation techniques apply to this new platform. The high tangibility of the device and its button interface makes it interesting to compare manipulation techniques. We describe AR manipulation techniques we have implemented on a mobile phone and present a small pilot study evaluating these methods.

  • 6.
    Henrysson, Anders
    et al.
    Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.
    Ollila, Mark
    Linköping University, The Institute of Technology. Linköping University, Department of Science and Technology.
    Augmented Reality on Smartphones2003In: IEEE International Augmented Reality Toolkit Workshop,2003, Piscataway, NJ, USA: IEEE , 2003, p. 27-Conference paper (Refereed)
  • 7.
    Henrysson, Anders
    et al.
    Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.
    Ollila, Mark
    Linköping University, The Institute of Technology. Linköping University, Department of Science and Technology.
    Context aware maps2004In: SIGRAD 2004,2004, 2004, p. 49-50Conference paper (Other academic)
  • 8.
    Henrysson, Anders
    et al.
    Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.
    Ollila, Mark
    Linköping University, The Institute of Technology. Linköping University, Department of Science and Technology.
    UMAR: Ubiquitous mobile augmented reality2004In: 3rd International Conference on Mobile and Ubiquitous Multimedia MUM2004,2004, 2004, p. 41-45Conference paper (Other academic)
  • 9.
    Henrysson, Anders
    et al.
    Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.
    Ollila, Mark
    Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
    Billinghurst, Mark
    HIT Lab NZ, University of Canterbury, New Zealand.
    Mobile Phone Based AR Scene Assembly2005In: Proceedings of the 4th international Conference on Mobile and Ubiquitous Multimedia, 2005, p. 95-102Conference paper (Other academic)
    Abstract [en]

    In this paper we describe a mobile phone based Augmented Reality application for 3D scene assembly. Augmented Reality on mobile phones extends the interaction capabilities on such handheld devices. It adds a 6 DOF isomorphic interaction technique for manipulating 3D content. We give details of an application that we believe to be the first where 3D content can be manipulated using both the movement of a camera tracked mobile phone and a traditional button interface as input for transformations. By centering the scene in a tangible marker space in front of the phone we provide a mean for bimanual interaction. We describe the implementation, the interaction techniques we have developed and initial user response to trying the application.

  • 10.
    Henrysson, Anders
    et al.
    Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.
    Ollila, Mark
    Linköping University, The Institute of Technology. Linköping University, Department of Science and Technology.
    Billinghurst, Mark
    HITLabNZ.
    Mobile Phone Based Augmented Reality2006In: Emerging Technologies of Augmented Reality: interfaces and design / [ed] Michael Haller, Mark Billinghurst, and Bruce Thomas, editors, Hershey, PA, USA: Idea Group Publishing , 2006, 1, p. 90-109Chapter in book (Other academic)
    Abstract [en]

      Although the field of mixed reality has grown significantly over the last decade, there have been few published books about augmented reality, particularly the interface design aspects. Emerging Technologies of Augmented Reality: Interfaces and Design provides a foundation of the main concepts of augmented reality (AR), with a particular emphasis on user interfaces, design, and practical AR techniques, from tracking algorithms to design principles for AR interfaces. Emerging Technologies of Augmented Reality: Interfaces and Design contains comprehensive information focusing on the following topics: technologies that support AR, development environments, interface design and evaluation of applications, and case studies of AR applications

  • 11.
    Peltonen, Jaakko
    et al.
    University of Oulu, Finland.
    Ollila, Mark
    Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
    Ojala, Timo
    University of Oulu, Finland.
    TimeMachine Oulu – Dynamic Creation of Cultural-Spatio-Temporal Models as a Mobile Service2003In: Human-Computer Interaction with Mobile Devices and Services: 5th International Symposium, Mobile HCI 2003, Udine, Italy, September 2003. Proceedings / [ed] Luca Chittaro, Springer Berlin/Heidelberg, 2003, Vol. 2795, p. 342-346Chapter in book (Refereed)
    Abstract [en]

    The use of architectural and historical information in a mobile environment is investigated in this paper. We have created a system for dynamic creation of spatio-temporal VRML-models for context aware clients in a mobile cultural setting. The user can interact and query objects using standard web interfaces as well interaction in the 3D environment. We perform a preliminary user evaluation for iterative design of future versions of the mobile service.

  • 12.
    Unger, Jonas
    et al.
    Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.
    Wrenninge, Magnus
    Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
    Ollila, Mark
    Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
    Real-time Image Based Lighting in Software using HDR Panoramas2003In: Proceedings of the 1st international conference on Computer graphics and interactive techniques in Australasia and South East Asia, 2003Conference paper (Refereed)
    Abstract [en]

    We present a system allowing real-time image based lighting basedon HDR panoramic images [Debevec 1998]. The system performstime-consuming diffuse light calculations in a pre-processing step,which is key to attaining interactivity. The real-time subsystem processesan image based lighting model in software, which wouldbe simple to implement in hardware. Rendering is handled byOpenGL, but could be substituted for another graphics API, shouldthere be such a need. Applications for the technique presentedare discussed, and includes methods for realistic outdoor lighting.The system architecture is outlined, describing the algorithms used.Lastly, the ideas for future work that arose during the project arediscussed

  • 13.
    Unger, Jonas
    et al.
    Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.
    Wrenninge, Magnus
    Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
    Wänström, Filip
    Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
    Ollila, Mark
    Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
    Implementation of a Real-time Image Based Lighting in Software Using HDR Panoramas2002In: In proceedings of SIGRAD'02, 2002Conference paper (Refereed)
1 - 13 of 13
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