| 1. |
- Benford, Steve, et al.
(författare)
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Designing Storytelling Technologies to Encourage Collaboration Between Young Children
- 2000. - 2
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Konferensbidrag (refereegranskat)abstract
- We describe the iterative design of two collaborative storytelling technologies for young children, KidPad and the Klump. We focus on the idea of designing interfaces to subtly encourage collaboration so that children are invited to discover the added benefits of working together. This idea has been motivated by our experiences of using early versions of our technologies in schools in Sweden and the UK. We compare the approach of encouraging collaboration with other approaches to synchronizing shared interfaces. We describe how we have revised the technologies to encourage collaboration and to reflect design suggestions made by the children themselves.
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| 2. |
- Bullock, Adrian, et al.
(författare)
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Designing interactive collaborative environments
- 2001. - 2
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Ingår i: Collaborative Virtual Environments: Digital Places and Spaces for Interaction. - : Springer. - 1852332441
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- We describe our experiences of creating and using a wide variety of techniques and applications to support collaboration in virtual environments for different activities and user groups. Our aim is to offer plentiful and rich possibilities for interaction across and between both real and virtual environments.
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| 3. |
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| 4. |
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| 5. |
- Simsarian, Kristian, et al.
(författare)
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Achieving Virtual Presence with a Semi-Autonomous Robot Through a Multi-Reality and Speech Control Interface
- 1996. - 1
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Ingår i: Proceedings of 3d Eurographics Workshop on Virtual Environments.
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Konferensbidrag (refereegranskat)abstract
- This paper describes a model for a complex human-machine system where a human operator controls a remote robot through the mediation of a distributed virtual environment with a language interface. The system combines speech controlled graphical immersive environments with the live video from a robot working in a real environment. The worlds are synchronized and updated based on operator selections, commands and robot actions. This system allows the user to have a powerful tool with a high level of abstraction to create and control autonomous robots, thus making possible the realization of single and multiple autonomous robot applications.
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| 6. |
- Simsarian, Kristian T.
(författare)
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Toward human-robot collaboration
- 2000
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Recently robots have been launched as tour-guides in museums, and as lawnmowers, in-home vacuum cleaners, and remotely operated machines in so-called distant, dangerous and dirty applications. While the methods to endow robots with a degree of autonomy have been a strong research focus, the methods for human-machine control have not been given as much attention. As autonomous robots become more ubiquitous, the methods we use to communicate task specification to them become more crucial.This thesis presents a methodology and a system for the supervisory collaborative control of a remote semi-autonomous mobile robot. The presentation centers on three main aspects of the work and offers a description of the system and the motivations behind the design.The supervisory system for human specification of robot tasks is based on a Collaborative Virtual Environment (CVE) which provides an effective framework for scalable robot autonomy, interaction and environment visualization. The system affords the specification of deictic commands to the semi-autonomous robot via the spatial CVE interface. Spatial commands can be specified in a manner that takes into account some specific everyday notions of collaborative task activity.Environment visualization of the remote environment is accomplished by combining the virtual model of the remote environment with video from the robot camera. Finally the system underwent a study with users that explored design and interaction issues within the context of performing a remote search task. Examples of study issues center on the presentation of the CVE, understanding robot competence, presence, control and interaction. One goal of the system presented in the thesis is to provide a direction in human-machine interaction from a form of direct control to an instance of human-machine collaboration.
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| 7. |
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| 8. |
- Simsarian, Kristian, et al.
(författare)
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View-Invariant Regions and Mobile Robot Self-Localization
- 1996. - 1
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This paper addresses the problem of mobile robot self-localization given a polygonal map and a set of observed edge segments. The standard approach to this problem uses interpretation tree search with pruning heuristics to match observed edges to map edges. Our approach introduces a preprocessing step in which the map is decomposed into 'view-invariant regions' (VIRs). The VIR decomposition captures information about map edge visibility, and can be used for a variety of robot navigation tasks. Basing self-localization search on VIRs greatly reduces the branching factor of the search tree and thereby simplifies the search task. In this paper we define the VIR decomposition and give algorithms for its computation and for self-localization search. We present results of simulations comparing standard and VIR-based search, and discuss the application of the VIR decomposition to other problems in robot navigation.
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| 9. |
- Simsarian, Kristian, et al.
(författare)
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Windows on the World: An example of Augmented Virtuality
- 1997. - 2
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Konferensbidrag (refereegranskat)abstract
- This work presents a system for creating augmented virtuality. We present a tool and methodology that can be used to create virtual worlds that are augmented by video textures taken of real world objects. These textures are images automatically extracted from images of real world scenes. The idea is to construct and update, in real time, a representation of the salient and relevant features of the real world. This idea has the advantage of constructing a virtual world that has the relevant data of the real world, but maintaining the flexibility of a virtual world. One advantage of the virtual-real world representation is that it is not dependent on physical location and can be manipulated in a way not subject to the temporal, spatial, and physical constraints found in the real world.
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| 10. |
- Åkesson, Karl-Petter, et al.
(författare)
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Reality Portals
- 1999. - 2
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Konferensbidrag (refereegranskat)abstract
- Through interactive augmented virtuality we provide the ability to interactively explore a remote space inside a virtual environment. This paper presents a tool and technique that can be used to create such virtual worlds that are augmented by video textures taken of real world objects. The system constructs and updates, in near real-time, a representation of the user-defined salient and relevant features of the real world. This technique has the advantage of constructing a virtual world that contains the relevant video-data of the real world, while maintaining the flexibility of a virtual world. The virtual-real world representation is not dependent on physical location and can be manipulated in a way not subject to the temporal, spatial, and physical constraints found in the real world. Another advantage is that spatializing the video-data may afford more intuitive examination.
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