Publications (5)0 Total impact
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ABSTRACT: In this paper, we present a new approach for the visualization of time-series data based on spirals. Different to classical bar charts and line graphs, the spiral is suited to visualize large data sets and supports much better the identification of periodic structures in the data. Moreover, it supports both the visualization of nominal and quantitative data based on a similar visualization metaphor. The extension of the spiral visualization to 3D gives access to concepts for zooming and focusing and linking in the data set. The spiral comes with additional tools to further enhance the identification of cycles.
05/2001;
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ABSTRACT: We discuss potential and limitations of a Morph Node, inspired by the corresponding construct in Java3D. A Morph Node in Java3D interpolates vertex attributes among several homeomorphic geometries. This node is a promising candidate for the delivery of 3D animation in a very compact form. We review the state-of-the-art in Web 3D techniques with respect to the possibility of interpolating among several geometries. This review leads to a simple extension for VRML-97 as well as a recommendation for necessary changes in Java3D. Furthermore, we discuss various optimization issues for Morph Nodes. CR Categories and Subject Descriptors. I.3.6 [Computer Graphics ] Methodology and Techniques: Standards - VRML; I.3.7 [Computer Graphics] Three Dimensional Graphics and Realism: Animation; I.3.8 [Computer Graphics] Applications. Additional Keywords. Animation, Avatars, Morphing, Virtual Humans, VRML. 1. INTRODUCTION Animation of three-dimensional shapes involves the change of vertex attributes ...
07/2000;
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ABSTRACT: . In this paper we propose a new approach for the generation of visual scales for the visualization of scalar and multivariate data. Based on the speci#cation of only a few correspondences between the data set and elements of a space of visual representations complex visualization mappings are produced. The foundation of this approach is the introduction of a multidimensional space of visual representations. The mapping between these spaces can be de#ned by approximating or satisfying the user de#ned relations between data values and visual atributes. 1
08/1999;
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ABSTRACT: Morphing is a well known technique to generate smooth transitions between two objects. We propose a more general understanding of morphing: First, we use morphing to describe objects as a composite of other objects. Second, we allow this description to incorporate more than two base objects. Given this concept a set of objects produced by morphing among multiple objects forms a mathematical space, which we call morphing space. We present a mathematical framework to discuss the properties of such spaces and their relation to the applied morphing algorithms for synthesizing the elements. We show that not only synthesis of objects but also analysis of objects is possible in a morphing space. Analysis results in the definition of an object in terms of the base objects of which it is comprised. Algorithms are proposed for both the synthesis and the analysis process. Keywords: morphing, warping, vector space, synthesis, analysis INTRODUCTION It is a property of nature that objects...
02/1999;
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ABSTRACT: this paper we propose such a general methodology based on the idea of morphing. A more detailed and formal description of this technique is described in [1].
10/1998;
