| 1. |
- Drugge, Mikael, et al.
(författare)
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Eventcasting with a wearable computer
- 2004
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Ingår i: Proceedings, 24th International Conference on Distributed Computing Systems workshops. - Los Alamitos, Calif : IEEE Computer Society Press. - 0769520871 ; , s. 408-413, s. 408-413
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Konferensbidrag (refereegranskat)abstract
- Traditionally, interaction methods for wearable computers have focused on input to the computer itself, yet little has been done when it comes to allowing interaction with the surrounding environment. Pervasive computing, on the other hand, offers access to computational power from any place all the time, yet most interaction techniques utilize either physical hardware or monitoring of the user in order to receive input. This paper presents a novel form of interaction by which a wearable computer user can interact with and control a pervasive computing environment in a natural and intuitive manner. Using sensors, the user can be allowed to literally "throw" events into the environment as a way of interacting with devices and computers
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| 2. |
- Drugge, Mikael, et al.
(författare)
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Experiences of using wearable computers for ambient telepresence and remote interaction
- 2004
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Ingår i: Proceedings of the ACM SIGMM 2004 workshop on effective telepresence ETP 2004. - New York, NY, USA : IEEE Communications Society. - 1581139330 ; , s. 2-11, s. 2-11
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Konferensbidrag (refereegranskat)abstract
- We present our experiences of using wearable computers for providing an ambient form of telepresence to members of an e-meeting. Using a continuously running e-meeting session as a testbed for formal and informal studies and observations, this form of telepresence can be investigated from the perspective of remote and local participants alike. Based on actual experiences in real-life scenarios, we point out the key issues that prohibit the remote interaction from being entirely seamless, and follow up with suggestions on how those problems can be resolved or alleviated. Furthermore, we evaluate our system with respect to overall usability and the different means for an end-user to experience the remote world
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| 3. |
- Drugge, Mikael, et al.
(författare)
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Methods for interrupting a wearable computer user
- 2004
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Ingår i: Proceedings. - Los Alamitos, Calif : IEEE Communications Society. - 076952186X ; , s. 150-157
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Konferensbidrag (refereegranskat)abstract
- A wearable computer equipped with a head-mounted display allows its user to receive notifications and advice that is readily visible in her field of view. While needless interruption of the user should be avoided, there are times when the information is of such importance that it must demand the user’s attention. As the user is mobile and likely interacts with the real world when these situations occur, it is important to know in what way the user can be notified without increasing her cognitive workload more than necessary. To investigate ways of presenting information without increasing the cognitive workload of the recipient, an experiment was performed testing different approaches. The experiment described in this paper is based on an existing study of interruption of people in human-computer interaction, but our focus is instead on finding out how this applies to wearable computer users engaged in real world tasks.
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| 4. |
- Hallberg, Josef, et al.
(författare)
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Positioning with Bluetooth
- 2003
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Ingår i: 10th International Conference on Telecommunications. - Piscataway, NJ : IEEE Communications Society. - 0780376617 ; , s. 954-958
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Konferensbidrag (refereegranskat)abstract
- This paper presents an evaluation of Bluetooth positioning in a general positioning platform. Proceeding the evaluation a Bluetooth based positioning system was implemented in order to complement the theoretical evaluation with empirical tests. Three different ways of positioning with Bluetooth have been developed. With a registered positioning service a Bluetooth device has an active role in the positioning task as it sends a position on request. A Bluetooth device can also take a more passive role in a positioning task, where the unique address of the device is used by a connected device to look up respective position in a database. It is also possible to forward a position gained from the positioning platform using the peer to peer characteristics in Bluetooth. This paper does also contain a discussion on the theoretical time requirements for a positioning system based on Bluetooth. Empirical tests show that these requirements hold.
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| 5. |
- Nilsson, Marcus, et al.
(författare)
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A study on users' preference on interruption when using wearable computers and head mounted displays
- 2005
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Ingår i: Third IEEE International Conference on Pervasive Computing and Communications, PerCom 2005. - Los Alamitos : IEEE Computer Society Press. - 0769522998 ; , s. 149-158, s. 149-158
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Konferensbidrag (refereegranskat)abstract
- An important part of making a wearable computer un-obtrusive is the user interface and the way it interrupts the user. The amount of interruption that have to be made on the users primary task should be minimized. Usage without interruption is of course best for the performance of the primary task but is often not possible as many tasks that the wearable computer is involved in do need interaction with the user. It is therefore important to understand what type of interruption that will benefit the user most. The question about which interruption that causes the least amount of stress for the user is as important as which interruption that gives the best performance. This paper continues on previous work where performance of the users was measured for different types of interruption. In this paper subjective data is analyzed to understand how to build user interfaces for wearable computers and head mounted displays that considers stress and other subjective variables.
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| 6. |
- Nilsson, Marcus, et al.
(författare)
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Sharing experience and knowledge with wearable computers
- 2004
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Konferensbidrag (refereegranskat)abstract
- Wearable computer have mostly been looked on when used in isolation. But the wearable computer with Internet connection is a good tool for communication and for sharing knowledge and experience with other people. The unobtrusiveness of this type of equipment makes it easy to communicate at most type of locations and contexts. The wearable computer makes it easy to be a mediator of other people knowledge and becoming a knowledgeable user. This paper describes the experience gained from testing the wearable computer as a communication tool and being the knowledgeable user on different fairs.
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| 7. |
- Drugge, Mikael, et al.
(författare)
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Experiences from mobile e-meetings with the borderland wearable computer
- 2003
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- People are presented with an increasing number of opportunities to communicate regardless of location as wireless network connectivity becomes more prevalent. Questions that arise are in what form this communication is and what challenges it poses? Can the experience of group communication be enhanced so that a feeling of actual presence can be conveyed? Can we enable participants to experience the world from another person's perspective? We believe so, in this paper we discuss our experiences of group communication when using a wearable computer that is always connected to the network.
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| 8. |
- Drugge, Mikael, et al.
(författare)
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Experiences of conveying knowledge in borderland
- 2003
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- One of humankind's most basic needs is that of being able to communicate with other people. As wireless network connectivity becomes more prevalent, factors such as physical location and situation diminish in significance for deciding when and how such communication can take place. What happens when a user is given this freedom to utilize the network regardless of time and place? Questions that arise are how different media can enrich communication and what challenges it poses. Can we enable other users to experience the world from another person's perspective? Can we expand it beyond pure communication and allow other more novel uses to emerge? Can we use this as a way of conveying knowledge in real-time to those in need of it? We believe so, in this paper we discuss our experiences of mobile communication when using a wearable computer that is always connected to the best network available.
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| 9. |
- Nilsson, Marcus, et al.
(författare)
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Bluetooth positioning
- 2002
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Ingår i: CSEE 2002. - : Luleå tekniska universitet.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Research on positioning systems and context-aware applications are being performed in the Alipes project at CDT, Luleå University of Technology, Sweden. An evaluation of Bluetooth as a possible technology for positioning was performed during autumn of 2001 in this project. Proceeding the evaluation a Bluetooth based positioning system was implemented in order to complement the theoretical evaluation with empirical tests. Three different ways of positioning with Bluetooth have been developed for the Alipes project. With a registered positioning service a Bluetooth device has an active role in the positioning task as it sends a position on request. A Bluetooth device can also take a more passive role in a positioning task, which is when the unique address of the device is used by a connected device to look up a position in a database. It is also possible to forward a position gained from a positioning platform like Alipes over Bluetooth. This paper presents a Bluetooth positioning system where the three ways of positioning are implemented. The evaluation and conclusions of Bluetooth as a positioning source and how well Bluetooth performs in such a task are being discussed. To give support to the statements the implementation and tests are also presented.
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| 10. |
- Nilsson, Marcus
(författare)
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Communication, with and through wearable computers
- 2004
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This thesis presents research on wearable computers and their usage in communication. The wearable computer is looked upon as a tool for communication between people but also on how it can be used in communication with the environment. A wearable computer has been built with ordinary computer parts and devices available in well-equipped computer stores. This wearable computer is used in this thesis and has both video and audio capabilities and wireless network for communication with people and equipment over distance. The setup has then been used to study the effect of using wearable computer in activities involving communication with people and other equipment. This thesis presents some ways that a wearable computer can be used when considering communication. The user can become a beacon of knowledge sharing the knowledge of people connected to her through the network with people that are collocated with her. She could also become a tool for other people to explore and experience places where they are not located at the moment so called telepresence. It could be said that this is possible with equipment that is available today, but what differences the usage of wearable computer is the possibility to do these activities while still being active in what happens around the user. As the wearable computer should be easy to wear and interact with, the roll as a knowledge beacon or telepresence provider can become almost invisible for the user and other collocated people. To make these rolls as invisible as possible great care must be taken into the interaction between the wearable computer and the user, but also the interaction the user does through the wearable computer with other equipment. When being active as one or both of these rolls the user will mostly be involved in tasks that do not directly involve the wearable computer. When the wearable computer then needs the attention of the user it may have to interrupt the user's current task. This interruption should be done so that the decrease in performance of the user can be kept to a minimum. It is also of equal importance not to only consider the performance but also the experienced stress, which should also be kept to a minimum. A user study is presented in this thesis that explores some of the possible ways to interrupt a wearable computer and analyses what way is preferred when considering both objective and subjective data. In this thesis a novel interaction method called "Eventcasting" is also presented to decrease the time needed to focus on the wearable computer when doing simple tasks with the environment. This is so that interruption on the primary task can be even more minimized and the rolls as a knowledge beacon and telepresence provider can be as invisible as possible.
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