A touring machine: prototyping 3D mobile augmented reality systems for exploring the urban environment

Feiner, Steven; MacIntyre, Blair; Höllerer, Tobias; Webster, Anthony C.

doi:10.1109/iswc.1997.629922

Cited by 356 publications

(184 citation statements)

References 27 publications

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“…Research related to post-WIMP interfaces [13] has led to the definition of different paradigms for users interacting with a computer system while moving in a real environment. We will consider in particular the augmented [15,21,23] and mixed reality [25,38] paradigms. Figure 19 illustrates the relations between users, computer systems, and real world for different interaction paradigms.…”

Section: Towards a Unified Methodology For Universal Accessmentioning

confidence: 99%

Accessing information through multimodal 3D environments: towards universal access

Pittarello

2003

Universal Access in the Information Society

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3D environments represent a great opportunity for universal access to information, as they offer an intuitive interaction paradigm, similar to what is experienced by humans in their everyday lives. In spite of that, several 3D interfaces are characterized by poor structures and are hard to navigate. This paper presents the multimodal concept of the Interaction Locus (IL) as a means to give structure to 3D scenes, helping the user to interact with and access information inside them. The concept was initially developed with particular reference to desktop virtual reality (2.5 D virtual reality), but it is general enough to be extended to other contexts, such as real 3D scenes. The final part of this work shows how the IL concept addresses the need for a unified authoring methodology, capable of allowing access to different target user groups from a variety of different devices.

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Section: Towards a Unified Methodology For Universal Accessmentioning

confidence: 99%

Accessing information through multimodal 3D environments: towards universal access

Pittarello

2003

Universal Access in the Information Society

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“…Virtually all current notebook computers and many PDAs can be configured to accommodate these requirements. Feiner et al (1997) assembled such a prototype mobile ASDS from off-the-shelf equipment.…”

Section: Adapting the System To Mobile Platformsmentioning

confidence: 99%

Creating and delivering augmented scenes

Mower

2009

International Journal of Geographical Information Science

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An augmented scene delivery system (ASDS) creates and distributes annotated cartographic products in real time from captured still imagery. An ASDS applies augmented reality technology to the visualization of unrestricted exterior viewsheds through an adaptive, perspective-based surface resampling model. This paper describes an ASDS testing platform, introduces a client/server model for distributing augmented scenes over the Internet, presents a linear-time algorithm for resampling dense elevation models for perspective imaging and conducts an execution analysis of the algorithm's implementation, demonstrating that augmented scenes can be constructed and delivered efficiently. The paper also presents a migration path to mobile ASDS platforms with a discussion of the remaining technological problems associated with its implementation.

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“…In such applications, real-time constraints are very tight, particularly regarding the rendering cost of the 3D scene and interaction latency. In addition, filtering out of information is critical, since some elements present in the virtual world do not need to be retrieved in the augmented view (given that the user ''sees'' the real thing), while some other elements can simply be represented using tags, as in, e.g., the touring machine of Feiner et al (1997).…”

Section: Constraintbased Simplification Of Hierarchical Datamentioning

confidence: 99%

Software Framework for Managing Heterogeneity in Mobile Collaborative Systems

Correa

Marsic

2004

Comput Supported Coop Work

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Heterogeneity in mobile computing devices and application scenarios complicates the development of collaborative software systems. Heterogeneity includes disparate computing and communication capabilities, differences in users' needs and interests, and semantic conflicts across different domains and representations. In this paper, we describe a software framework that supports mobile collaboration by managing several aspects of heterogeneity. Adopting graph as a common data structure for the application state representation enables us to develop a generic solution for handling the heterogeneities. The effect external forces, such as resource constraints and diverging user interests, can be quantified and controlled as relational and attribute heterogeneity of state graphs. When mapping the distributed replicas of the application state, the external forces inflict a loss of graph information, resulting in many-to-one correspondences of graph elements. A key requirement for meaningful collaboration is maintaining a consistent shared state across the collaborating sites. Our framework makes the best of maximizing the state consistency, while accommodating the external force constraints, primarily the efficient use of scarce system resources. Furthermore, we describe the mobility aspects of our framework, mainly its extension to peer-to-peer scenarios and situations of intermittent connectivity. We describe an implementation of our framework applied to the interoperation of shared graphics editors across multiple platforms, where users are able to share 2D and 3D virtual environments represented as XML documents. We also present performance results, namely resource efficiency and latency, which demonstrate its feasibility for mobile scenarios.

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A touring machine: prototyping 3D mobile augmented reality systems for exploring the urban environment

Cited by 356 publications

References 27 publications

Accessing information through multimodal 3D environments: towards universal access

Accessing information through multimodal 3D environments: towards universal access

Creating and delivering augmented scenes

Software Framework for Managing Heterogeneity in Mobile Collaborative Systems

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