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Dive into the research topics where Anders Henrysson is active.

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Featured researches published by Anders Henrysson.


international symposium on mixed and augmented reality | 2005

Face to face collaborative AR on mobile phones

Anders Henrysson; Mark Billinghurst; Mark Ollila

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.


mobile and ubiquitous multimedia | 2004

UMAR: Ubiquitous Mobile Augmented Reality

Anders Henrysson; Mark Ollila

In this paper we discuss the prospects of using marker based Augmented Reality for context aware applications on mobile phones. We also present the UMAR, a conceptual framework for developing Ubiquitous Mobile Augmented Reality applications which consists of research areas identified as relevant for successfully bridging the physical world and the digital domain using Mobile Augmented Reality. A step towards this we have successfully ported the ARToolkit to consumer mobile phones running on the Symbian platform and present results around this. We also present three sample applications based on UMAR and future case study work planned.


Proceedings of the 2005 international conference on Augmented tele-existence | 2005

Virtual object manipulation using a mobile phone

Anders Henrysson; Mark Billinghurst; Mark Ollila

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.


mobile and ubiquitous multimedia | 2005

Mobile phone based AR scene assembly

Anders Henrysson; Mark Ollila; Mark Billinghurst

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.


international conference on computer graphics and interactive techniques | 2007

Experiments in 3D interaction for mobile phone AR

Anders Henrysson; Joe Marshall; Mark Billinghurst

In this paper we present an evaluation of several different techniques for virtual object positioning and rotation on a mobile phone. We compare gesture input captured by the phones front camera, to tangible input, keypad interaction and phone tilting in increasingly complex positioning and rotation tasks in an AR context. Usability experiments found that tangible input techniques are best for translation tasks, while keypad input is best for rotation tasks. Implications for the design of mobile phone 3D interfaces are presented as well as directions for future research.


new zealand chapter's international conference on computer human interaction | 2007

Using a mobile phone for 6 DOF mesh editing

Anders Henrysson; Mark Billinghurst

This paper describes how a mobile phone can be used as a six degree of freedom interaction device for 3D mesh editing. Using a video see-through Augmented Reality approach, the mobile phone meets several design guidelines for a natural, easy to learn, 3D human computer interaction device. We have developed a system that allows a user to select one or more vertices in an arbitrary sized polygon mesh and freely translate and rotate them by translating and rotating the device itself. The mesh is registered in 3D and viewed through the device and hence the system provides a unified perception-action space. We present the implementation details and discuss the possible advantages and disadvantages of this approach.


international conference on computer graphics and interactive techniques | 2006

AR tennis

Anders Henrysson; Mark Billinghurst; Mark Ollila

AR Tennis is the first example of a face to face collaborative AR application developed for mobile phones. In this application two players sit across a table from each other with a piece of paper between them that has a set of ARToolKit markers drawn on it. Computer vision techniques are used to track the phone position relative to the markers. When the player points the phone camera at the markers they see a virtual tennis court overlaid on live video of the real world.


human-computer interaction with mobile devices and services | 2006

A novel interface to sensor networks using handheld augmented reality

Malinda Rauhala; Ann-Sofie Gunnarsson; Anders Henrysson

Augmented Reality technology enables a mobile phone to be used as an x-ray tool, visualizing structures and states not visible to the naked eye. In this paper we evaluate a set of techniques used augmenting the world with a visualization of data from a sensor network. Combining virtual and real information introduces challenges as information from the two domains might interfere. We have applied our system to humidity data and present a user study together with feedback from domain experts. The prototype system can be seen as the first step towards a novel tool for inspection of building elements.


international conference on artificial reality and telexistence | 2006

Interactive collaborative scene assembly using AR on mobile phones

Miroslav Andel; Alexander Petrovski; Anders Henrysson; Mark Ollila

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.


international symposium on mixed and augmented reality | 2006

Visualization of sensor data using mobile phone augmented reality

Ann-Sofie Gunnarsson; Malinda Rauhala; Anders Henrysson; Anders Ynnerman

We have developed a prototype system for visual inspection of hidden structures using a mobile phone wireless ZigBee sensor network. Data collected from an embedded wireless sensor matrix is used to synthesize graphics in real-time. Combining this with augmented reality technology on a mobile phone yields a novel approach to on-site inspection of a broad range of elements and their current internal states.

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Mark Billinghurst

University of South Australia

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Joe Marshall

University of Nottingham

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