Proceedings Fifth International Conference on Information Visualisation

25-27 July 2001

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  • Proceedings Fifth International Conference on Information Visualisation

    Publication Year: 2001
    Request permission for commercial reuse | PDF file iconPDF (505 KB)
    Freely Available from IEEE
  • Author index

    Publication Year: 2001, Page(s):767 - 769
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    Freely Available from IEEE
  • Generating dynamic shadows for virtual reality applications

    Publication Year: 2001, Page(s):595 - 600
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (720 KB) | HTML iconHTML

    In this paper, we discuss the benefits of including shadows in virtual reality applications and we propose a solution to the problem of generating shadows for dynamic scenes. In order to achieve interactivity, we restrict the problem to the case of polyhedral objects and planar surfaces. We propose a new mode as an extension to VRML that automatically generates the shadow of the underlying polygon... View full abstract»

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  • Visualisation of a simple beam under a load in virtual environment

    Publication Year: 2001, Page(s):589 - 591
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (136 KB) | HTML iconHTML

    Visualisation is generally considered to be a problem in structural design. Being an iterative process, structural design is time consuming for engineers, and results are difficult for clients to visualize. Current numerical methods have slow dynamic visualisation capability, which is usually separate from the calculation phase. The paper investigates whether an analogue virtual reality (VR) model... View full abstract»

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  • The general variables concept: a simple step from single- to multi-user environment

    Publication Year: 2001, Page(s):584 - 588
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB) | HTML iconHTML

    When implementing multi-user cooperation systems in a networked virtual environment, synchronizing local representations of a shared virtual world has to be considered. It involves distributing and storing the data that represent users' activity in the virtual world. The authors propose a concept of general variables, which formalizes the task of distributing, journaling and locking the data in th... View full abstract»

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  • Wayfinding in virtual environments using an interactive spatial cognitive map

    Publication Year: 2001, Page(s):574 - 583
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (920 KB) | HTML iconHTML

    We illustrate how an interactive spatial cognitive map representation of a large-scale virtual space under navigation can be constructed in order to help solve navigation queries and formulate navigation commands. We explain our design, describe its implementation and present the evaluation results from a sample of 6 navigators. Our balanced-within experiment shows that our implementation results ... View full abstract»

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  • Quaternion wavelets for moving volume representation

    Publication Year: 2001, Page(s):459 - 463
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB) | HTML iconHTML

    As a pure academic exercise, Mitrea (1994) published a paper about Clifford wavelets. This is the more exhaustive approach to the subject, years before I published a paper completely unrelated about quaternion wavelets from a different point of view. I try to develop the idea of Mitrea a little more in terms of a “static” use of quaternion wavelets and also some of my own ideas related... View full abstract»

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  • Immersive audio-augmented environments: the LISTEN project

    Publication Year: 2001, Page(s):571 - 573
    Cited by:  Papers (6)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB) | HTML iconHTML

    The author reports on the LISTEN project, a research project funded by the European Commission in the context of the Information Society Technology (IST) program. LISTEN, which started in January 2001, will provide users with intuitive access to personalized and situated audio information spaces while they naturally explore everyday environments. A new form of multisensory content is proposed to e... View full abstract»

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  • Tessellation and contour extraction algorithms for rapid prototyping replication of 3D-μCT reconstructions of cancellous bone

    Publication Year: 2001, Page(s):449 - 455
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (696 KB) | HTML iconHTML

    A set of algorithms has been developed and evaluated for 3D and 2½D rapid prototyping replication of 3D reconstructions of cancellous bone samples. The algorithms replicate a voxel map without any loss of fidelity, so as to increase the validity of the comparison of mechanical tests on the 3D reconstructed models with those predicted by finite element analyses. The evaluation is both in ter... View full abstract»

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  • Visual authoring tool for presentation agent based on Multimodal Presentation Markup Language

    Publication Year: 2001, Page(s):563 - 567
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (700 KB) | HTML iconHTML

    The paper proposes a visual authoring tool for a presentation agent system on the Web. In presentation systems, it is more fascinating when we conduct the presentation stream via the explanation or conversation of presenters. In order to provide a presentation on demand on the Web, we need a character based presentation agent. There are several ways to control such agents but some are too complex ... View full abstract»

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  • Dynamic background correction in 3Dt body surface sensing and visualisation

    Publication Year: 2001, Page(s):444 - 448
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (700 KB) | HTML iconHTML

    The sensing and visualisation of 3D body surface information is being researched for clinical use in the radiation treatment of cancer, where accurate patient set-up and positional monitoring is essential. Where 3D measurement is based on the projection of structured light onto the patient it is neccessary to remove background detail prior to extracting patient surface topology. Rapid background c... View full abstract»

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  • Collated Path: a one-dimensional interface element to promote user orientation and sense-making activities in the Semantic Web

    Publication Year: 2001, Page(s):555 - 562
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (684 KB) | HTML iconHTML

    This paper details the design of a one-dimensional interface element, the “Collated Path” an effort to create a very, light-weight information manipulation tool that could be used within a user's own dataset (e.g. their history list), which could then be used in combination with other searches. It is optimized to present views of the Semantic Web useful for everyday applications. Empha... View full abstract»

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  • Animated illuminated lines for flow visualization

    Publication Year: 2001, Page(s):317 - 322
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB) | HTML iconHTML

    A method of using a dynamic texture on 3D polylines to represent field streamlines is described for the purpose of visualizing continuous fluid dynamic fields. The method combines stream lines and particle animation into one hybrid technique, and employs texture display on lines to represent full 3D lighting, motion and 3D flow structure in one view. The technique exploits texture graphics systems... View full abstract»

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  • 4D volume rendering with the shear warp factorisation: extensions and quantitative results

    Publication Year: 2001, Page(s):435 - 443
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1028 KB) | HTML iconHTML

    We present extensions to an approach for rendering time-varying data based on the shear-warp factorisation. The change detection technique is adapted to process Poisson distributed datasets, a modified block differencing technique that decreases the change detection errors is presented along with a modification of the original run-length encoding method which allows better spatial compression for ... View full abstract»

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  • Ontology-based information visualisation

    Publication Year: 2001, Page(s):546 - 554
    Cited by:  Papers (5)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (676 KB) | HTML iconHTML

    The main contribution is to show how visual representations of information can be based on ontological classifications of that information. We first discuss the central role of ontologies on the Semantic Web. We subsequently outline our general approach to the construction of ontology-based visualisations of data. This is followed by a set of examples of ontology-based visualisations which all dif... View full abstract»

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  • Image based rendering using rational filters

    Publication Year: 2001, Page(s):311 - 316
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (872 KB) | HTML iconHTML

    Image based rendering is a powerful technique for 3D object visualization and representation. Using this approach, arbitrary object or scene views are generated automatically from a small set of real reference images. An algorithm for image based rendering using stereo image pairs is presented. The main goal is to produce a realistic 3D `continuous look-around' effect along the stereo baseline. To... View full abstract»

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  • Combining linking and focusing techniques for a multiple hierarchy visualisation

    Publication Year: 2001, Page(s):425 - 432
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1332 KB) | HTML iconHTML

    Visualisations have previously combined linking and brushing operations successfully. However, none (to our knowledge) have combined linking and focusing techniques. We describe the motivation behind developing such a technique, and show how our visualisation takes advantage of inherent links in a set of multiple overlapping hierarchies to build a mechanism that can produce linked focus+context ef... View full abstract»

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  • Visual interaction with XML metadata

    Publication Year: 2001, Page(s):539 - 545
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (924 KB) | HTML iconHTML

    This paper explores the possibility of developing interactive visually-rich interfaces that enable Web users to access and manipulate XML metadata and underlying ontologies. Native visualisations, i.e. those that are integral parts of the process of creating and displaying XML documents, are analysed in order to utilise their potential in our interface design. As a result of adapting and merging v... View full abstract»

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  • An interactive and concerted dance system - emotion extraction and support for emotional concert

    Publication Year: 2001, Page(s):303 - 308
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB) | HTML iconHTML

    A human activity that expresses one's emotion is significantly important in non-verbal communications. Human body motion such as a dance performance is one of the important factors in expressing such an emotion. An effective method to extract emotional information in real time from dance images is described. A novel heuristic function is also proposed to evaluate the degree of harmony between two ... View full abstract»

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  • Web-based distribution of GIS metropolitan maps

    Publication Year: 2001, Page(s):419 - 424
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB) | HTML iconHTML

    Much research on spatial data retrieval has been accumulated in the past two decades. However, the research of Internet distribution of GIS contents is still in its infancy. This paper describes a systematic approach to optimize Internet distribution of GIS vector maps. The goal is to reduce user-perceived response time and improve viewers' navigation efficiency. At the center of this approach is ... View full abstract»

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  • Linear programming concept visualization

    Publication Year: 2001, Page(s):529 - 535
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (708 KB) | HTML iconHTML

    A visualization scheme as a tool to find the solution of any 3D-linear programming problem is introduced. The presented approach is highly suitable to draw and visualize interactively the feasible region of a given 3D-linear programming problem. It can be used for a better understanding of the solution process when different methods devoted to solve the underlying problem are applied, e.g., the si... View full abstract»

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  • Visualisation of long distance grammatical collocation patterns in language

    Publication Year: 2001, Page(s):297 - 302
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (700 KB) | HTML iconHTML

    Research in generic unsupervised learning of language structure applied to the Search for Extra-Terrestrial Intelligence (SETI) and decipherment of unknown languages has sought to build up a generic picture of lexical and structural patterns, characteristic of natural language. As part of this toolkit, a generic system is required to facilitate the analysis of behavioural trends amongst selected p... View full abstract»

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  • Interaction and visualization supporting Web browsing patterns

    Publication Year: 2001, Page(s):413 - 418
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB) | HTML iconHTML

    Provides advanced visualization and interaction paradigms to support Web browsing through the intensive use of bookmarks, navigation history and best-of lists. Our approach is motivated by past studies of Web browsing patterns that proved the usefulness of such tools even though standard browsers provide very few interaction and visualization features for them. In this paper, we first motivate our... View full abstract»

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  • Thinning Arabic characters for feature extraction

    Publication Year: 2001, Page(s):181 - 185
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB) | HTML iconHTML

    A successful approach to the recognition of Latin characters is to extract features from that character such as the number of strokes, stroke intersections and holes, and to use ad-hoc tests to differentiate between characters which have similar features. The first stage in this process is to produce thinned 1 pixel thick representations of the characters to simplify feature extraction. This appro... View full abstract»

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  • A visualization method for the morphological exploration of tensegrity structures

    Publication Year: 2001, Page(s):523 - 528
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB) | HTML iconHTML

    Tensegrities are a special type of tensile structures that offer a viable alternative to conventional space covering structures. The morphology of tensegrity networks is uniquely and directly related to their structural and mechanical properties. Geometric and topological complexity is a characteristic of the morphology of tensegrity structures and accounts for significant difficulties in the stud... View full abstract»

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