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
  • Error analysis for the evaluation of rational Bezier curves

    Publication Year: 2001, Page(s):470 - 474
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB) | HTML iconHTML

    Rational Bezier curves provide flexibility in curve design. The goal of this paper is to perform error analysis of Farin's (1983, 1986) algorithm for the evaluation of these curves. It is shown that a similar error analysis can be applied for the algorithms in rational spaces obtained from spaces admitting shape preserving representations View full abstract»

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  • Efficient simplification of polygonal surface models

    Publication Year: 2001, Page(s):464 - 469
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB) | HTML iconHTML

    We have proposed a new edge collapse simplification algorithm that can produce efficiently high quality approximations of closed manifold surface models. To reduce the number of triangular faces in a polygonal model, a sequence of edge collapses is performed and to choose the appropriate sequence of edge collapses, we have introduced a new error metric based on a quantity proportional to the volum... 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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  • ViDiO-Visual Distribution of Objects

    Publication Year: 2001, Page(s):331 - 335
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB) | HTML iconHTML

    The authors present a tool: Visual Distribution of Objects (ViDiO), for graphical deployment of CORBA objects. It allows easy association of hosts with IDL interfaces and produces client, server, and object code in Java based on the drawn diagram and provided XML based templates. It is based on a library designed for platform independent display of computer networks 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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  • View morphing using sprites with depth

    Publication Year: 2001, Page(s):323 - 328
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB) | HTML iconHTML

    Recently there has been a great deal of interest in morphing techniques to produce intermediary images between two images. These techniques combine 2D interpolations of shape and color to make realistic special effects. The authors simulate view morphing, using sprites with depth about a pair of partially occluded images based on the epipolar geometry. The epipolar constraints improve the accuracy... 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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  • 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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  • 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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  • Representation of moving surfaces

    Publication Year: 2001, Page(s):192 - 196
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB) | HTML iconHTML

    Our goal is to deal with a non rigid surface, for example lubricant around a ball, interfaces between two fluids and so on. We then first describe how to approximate a movement and then how to interpolate such approximating functions. Finally we present two alternatives, global or local interpolation of the movements 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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  • A software repository for education and research in information visualization

    Publication Year: 2001, Page(s):257 - 262
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (652 KB) | HTML iconHTML

    This paper argues for the creation of a software repository for research and education in information visualization (IV). It starts with an introduction and overview of IV online resources and software repositories. Next, we introduce the code repository that we have created and demonstrate how it was used in the IV course which one of the authors teaches. Sample implementations by students are pr... View full abstract»

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  • A study of three browser history mechanisms for Web navigation

    Publication Year: 2001, Page(s):13 - 21
    Cited by:  Papers (1)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1008 KB) | HTML iconHTML

    Finding a previously visited page during Web navigation is a very common and important process. Although most commercial browsers incorporate a history mechanism, when accessing pages that were recently visited, users still rely mainly on the “Back” button. In this paper, we studied the effectiveness of visually enhanced history browser mechanisms on Web navigation. We used three diffe... 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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  • A design tool for the hierarchical hair model

    Publication Year: 2001, Page(s):186 - 191
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (652 KB) | HTML iconHTML

    Modeling, designing and rendering realistic human hair is one of the most challenging topics in computer graphics. The difficulty mainly comes from the large amount of hair, the fine shapes of the individual hairs, and the complex illuminating interactions among hairs and surrounding objects. An enhanced interactive hair styling system - V-HairStudio, based on our previous work, is developed to de... 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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  • Visualisation to assist non-speaking users of augmentative communication systems

    Publication Year: 2001, Page(s):251 - 256
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (824 KB) | HTML iconHTML

    Many non-speaking people use augmentative and alternative communication (AAC) systems to assist them to communicate with other people. Access to an AAC system is generally slow for its user, who may have other disabilities as well as being non-speaking. An AAC system can contain stored words, messages and stories for use in communication, and there can be a large quantity of such information for t... View full abstract»

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  • Design and implementation of a Web-based distributed collaborative design environment

    Publication Year: 2001, Page(s):703 - 707
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB) | HTML iconHTML

    This paper reviews work on distributed collaborative virtual design environments and the emerging technology of metacomputing. The paper discusses the design of distributed collaborative design environments using metacomputing, for example Globus, to provide intensive data computing via an asynchronous collection of loosely synchronous components. The essential component, Globus, focuses on defini... View full abstract»

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  • Sens-A-Patch: interactive visualization of label spaces

    Publication Year: 2001, Page(s):7 - 12
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (628 KB) | HTML iconHTML

    Sens-A-Patch is an interactive visualization technique based on overlapping clusters on a 2D space. It is intended for long-term use of personal label collections and aims at providing a fluent medium for restructuring and serendipitous discovery. Sens-A-Patch implements the principles of spatial meaning, focus+context and tight coupling in a space-efficient way. It is also shown empirically to be... View full abstract»

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  • Design visualization based on a machine readable physical model

    Publication Year: 2001, Page(s):665 - 670
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (540 KB) | HTML iconHTML

    This paper describes work on mapping from an abstract intelligent physical modelling system to a virtual modelling environment for design visualization. It also addresses related questions: Why is there a current revival of interest in these techniques? What is different now? Why use abstract representations? What were these systems for in the first place? What might be their new role in the futur... 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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  • Thinning Arabic characters for feature extraction

    Publication Year: 2001, Page(s):181 - 185
    Cited by:  Papers (7)
    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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