Proceedings ArticleDOI
The contour spectrum
Chandrajit L. Bajaj,Valerio Pascucci,Daniel R. Schikore +2 more
- pp 192
TLDR
The authors introduce the contour spectrum, a user interface component that improves qualitative user interaction and provides real-time exact quantification in the visualization of isocontours.Abstract:
We introduce the contour spectrllm, a user interface component that improves qualitative user interaction and provides real-time exad quantification in the visualization of isoconlours. The contour spectrum is a signature consisting of a variety of scalar data and conlour attributes, computed over the range of scalar values wE!R. We explore the use of surface area, volume, and gradient integral of the contour that are shown to be univariate B-spline functions of the scalar value w for multi-dimensional unstructured triangulal' grids. These quantitative propcrties arc calculated in real-time and presented to the user as a collection of signature graphs (plots of functions of w) to assist in selecting relevant isovalues Wo for informative visualization. For timevarying data, these quantitativc properties can also be computed over time, and displaycd using a 2D interface, giving the user an overview of the time-varying function, and allowing interaction in both isovalue and timestep. The effectiveness of the current system and potential extensions are discussed.read more
Citations
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Journal ArticleDOI
Multidimensional transfer functions for interactive volume rendering
TL;DR: An important class of 3D transfer functions for scalar data is demonstrated, and the application of multi-dimensional transfer functions to multivariate data is described, and a set of direct manipulation widgets that make specifying such transfer functions intuitive and convenient are presented.
Book
Real-Time Volume Graphics
TL;DR: This course will learn techniques for harnessing the power of consumer graphics hardware and high-level shading languages for real-time rendering of volumetric data and effects, covering local and global illumination, scattering, pre-integration, implicit surfaces and non-polygonal isosurfaces, transfer function design and deformation.
Proceedings ArticleDOI
Semi-automatic generation of transfer functions for direct volume rendering
Gordon Kindlmann,James W. Durkin +1 more
TL;DR: It is demonstrated that for a large class of scalar volume data, namely that where the regions of interest are the boundaries between different materials, a transfer function which makes boundaries readily visible can be generated from the relationship between three quantities.
Journal ArticleDOI
A survey of the marching cubes algorithm
Timothy S. Newman,Hong Yi +1 more
TL;DR: The paper’s primary aim is to survey the development of the marching cubes algorithm and its computational properties, extensions, and limitations (including the attempts to resolve its limitations).
Journal ArticleDOI
Human factors in visualization research
Melanie Tory,Torsten Möller +1 more
TL;DR: This work aims to review known methodology for doing human factors research, with specific emphasis on visualization, and review current human factor research in visualization to provide a basis for future investigation, and identify promising areas for future research.
References
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Proceedings ArticleDOI
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