Towards the Virtual Internet Gallery

Müller, Antje; Leissler, Martin; Hemmje, Matthias; Neuhold, Erich J.

doi:10.1109/mmcs.1999.778278

Cited by 7 publications

(4 citation statements)

References 2 publications

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“…The most recent deliverables, which have already become widely used de facto standards, encompass IP-based multimedia streaming technology (Crowcroft et al 1999;McCanne 1999) and the Virtual Reality Manipulation Language (VRML) along with its related tools. An issue which is still open, however, is how to effectively integrate the available Internet-based multimedia technologies with virtual reality (Brutzman 1998;Mueller and Neuhold 1998).…”

Section: Integrating Multimedia and Virtual Reality Technologies On Tmentioning

confidence: 99%

The Virtual Video Gallery: a user‐centred media on‐demand system

Fortino

Russo

2004

Interactive Technology and Smart Education

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The convergence of multimedia, virtual reality and the Internet is promoting low-cost multimedia virtual environments which are easily accessible to large network communities. These environments, which facilitate usability and enhance user experience, are very suitable for supporting user-oriented application domains such as e-learning and entertainment. This paper presents a multimedia virtual environment, namely the Virtual Video Gallery, an advanced, distributed media on-demand system which is browsable through a virtual world. By taking a virtual walk inside the gallery, the user can interactively select, preview, watch and control multimedia sessions. While the user-centred design of the system relies on UML-based modelling techniques, system implementation is obtained by the integration of Java, VRML and Web-based technologies. In order to evaluate the user-oriented effectiveness of the Virtual Video Gallery and compare it to currently available Internet-based MoD systems, the usability testing of the system was established for deriving both summative and formative usability data.

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Section: Integrating Multimedia and Virtual Reality Technologies On Tmentioning

confidence: 99%

The Virtual Video Gallery: a user‐centred media on‐demand system

Fortino

Russo

2004

Interactive Technology and Smart Education

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“…Other systems that retrieve images or other kinds of artwork (such as sculptures, pottery, and so on), have used 3D mainly for visualization purposes. In other work [7][8][9] results of a user query were arranged in a 3D environment to enable the fruition of artwork in the same way as the user is accustomed to in real museums. Both approaches provide a dynamic creation of the scene, depending on the results of the query.…”

Section: Introductionmentioning

confidence: 99%

“…Both approaches provide a dynamic creation of the scene, depending on the results of the query. In one system, 8 an advanced trigger mechanism allows the scene on the client side to track changes in the database. However, 3D-based interaction is limited to navigation in the environment and manipulation of the objects it contains, while query specification is based on Structured Query Language (SQL).…”

Section: Introductionmentioning

confidence: 99%

Querying by photographs: a VR metaphor for image retrieval

Assfalg

Pala²

2000

IEEE Multimedia

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Interaction paradigms based on 3D interfaces and virtual reality offer new possibilities to overcome the limitations of query by example. We present a system that lets users navigate a 3D world where they can take photographs to query a database of images by content. Furthermore, users can interactively customize the virtual world by adding objects to the scene and editing object properties such as colors and textures. T he emergence of multimedia technology and the possibility of sharing and distributing image data through largebandwidth computer networks have contributed to an increase of visual data in the global information exchange. Significant advances have been made in the development of efficient compression techniques, but techniques that enable efficient retrieval by content of visual data remain an active research topic. Recently, researchers have developed new tools and interaction paradigms to search for visual information by referring directly to its content. Visual elements such as color, texture, shape, structure, and spatial relationships serve as clues for retrieving images with similar content. The most successful and commonly employed querying interfaces rely on query-by-example paradigms. These paradigms require users to sketch, either from scratch or using prototype images, the content of the image they're looking for. Although it's easy to create simple examples, producing significant examples of complex scenes remains a difficult task. The photographer's metaphor presented in this article facilitates authoring complex examples. Actually, the user takes a photograph of a (customizable) 3D environment rendered by the system. Since the system renders the environment, the paradigm's effectiveness doesn't rely on the user's painting abilities.

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“…In client-server-based interactive information visualization user interfaces (see, e.g., [LHN99], [MLHN99], [RLHA98], [MSSNHPL98]), data sets of many types are made accessible by a server. Users request such data sets and client user interfaces visualize them applying a given information visualization mapping.…”

Section: Introductionmentioning

confidence: 99%

Automatic Updates of Interactive Information Visualization User Interfaces through Database Triggers

Leissler

Hemmje

Neuhold

2000

Advances in Visual Information Management

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In client-server based interactive infonnation visualization, user interfaces data sets of many types are made accessible by a server. On the server side, these data sets can, e.g., be stored in a file system. As soon as a user requests the data set, it will be transmitted from the server to the requesting client. A different approach is to dynamically construct a data set at request time on the server side for visualization on the client side. Another approach for database driven infonnation visualization is to request actual data out of a running infonnation visualization application on the client side. Both visualization methods have in common that changes in the underlying data cannot be automatically reflected in changes of the client's infonnation visualization state and context. A solution for this problem is the use of database triggers which today are often implemented in existing database management systems (DBMS). Database triggers are a mechanism used to define a set of operations which are to be executed by the DBMS as soon as a given part of the data in the database changes. Using triggers to update an infonnation visualization client has the advantage of eliminating unnecessary database requests. Moreover, the delay in updating the infonnation visualization on the client side is only dependent on the time it takes to send a message from the server to the client. This paper describes a conceptual model for such a trigger mechanism and evaluates some upcoming problems. Furthennore, the paper describes a prototypical proof-of-concept implementation based on commonly used technologies and systems. H. Arisawa et al. (eds.), Advances in Visual Information Management

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Towards the Virtual Internet Gallery

Cited by 7 publications

References 2 publications

The Virtual Video Gallery: a user‐centred media on‐demand system

The Virtual Video Gallery: a user‐centred media on‐demand system

Querying by photographs: a VR metaphor for image retrieval

Automatic Updates of Interactive Information Visualization User Interfaces through Database Triggers

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