Self-organizing maps
Probabilistic segmentation of volume data for visualization using SOM-PNN classifier
VVS '98 Proceedings of the 1998 IEEE symposium on Volume visualization
LAPACK Users' guide (third ed.)
LAPACK Users' guide (third ed.)
Salient iso-surface detection with model-independent statistical signatures
Proceedings of the conference on Visualization '01
Multidimensional Transfer Functions for Interactive Volume Rendering
IEEE Transactions on Visualization and Computer Graphics
The Transfer Function Bake-Off
IEEE Computer Graphics and Applications
ISpace: Interactive Volume Data Classification Techniques Using Independent Component Analysis
PG '02 Proceedings of the 10th Pacific Conference on Computer Graphics and Applications
Representing high-dimensional data sets as closed surfaces
Information Visualization
Radial Basis Functions
RGVis: Region Growing Based Techniques for Volume Visualization
PG '03 Proceedings of the 11th Pacific Conference on Computer Graphics and Applications
Lighting Transfer Functions Using Gradient Aligned Sampling
VIS '04 Proceedings of the conference on Visualization '04
An Intelligent System Approach to Higher-Dimensional Classification of Volume Data
IEEE Transactions on Visualization and Computer Graphics
High-Quality Two-Level Volume Rendering of Segmented Data Sets on Consumer Graphics Hardware
Proceedings of the 14th IEEE Visualization 2003 (VIS'03)
Gaussian Transfer Functions for Multi-Field Volume Visualization
Proceedings of the 14th IEEE Visualization 2003 (VIS'03)
Curvature-Based Transfer Functions for Direct Volume Rendering: Methods and Applications
Proceedings of the 14th IEEE Visualization 2003 (VIS'03)
Visualization of Boundaries in Volumetric Data Sets Using LH Histograms
IEEE Transactions on Visualization and Computer Graphics
High-Level User Interfaces for Transfer Function Design with Semantics
IEEE Transactions on Visualization and Computer Graphics
A cluster-space visual interface for arbitrary dimensional classification of volume data
VISSYM'04 Proceedings of the Sixth Joint Eurographics - IEEE TCVG conference on Visualization
EUROVIS'06 Proceedings of the Eighth Joint Eurographics / IEEE VGTC conference on Visualization
Volume visualization and exploration through flexible transfer function design
Computers and Graphics
Volume visualization and exploration through flexible transfer function design
Computers and Graphics
Multi-dimensional reduction and transfer function design using parallel coordinates
VG'10 Proceedings of the 8th IEEE/EG international conference on Volume Graphics
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Direct volume rendering techniques allow visualization of volume data without extracting intermediate geometry. The mapping from voxel attributes to optical properties is performed by transfer functions which, consequently, play a crucial role in building informative images from the data. One-dimensional transfer functions, which are based only on a scalar value per voxel, often do not provide proper visualizations. On the other hand, multidimensional transfer functions can perform more sophisticated data classification, based on vectorial voxel signatures. The transfer function design is a non-trivial and unintuitive task, especially in the multi-dimensional case. In this paper we propose a multi-dimensional transfer function design technique that uses self-organizing maps to perform dimensional reduction. Our approach gives uniform treatment to volume data containing voxel signatures of arbitrary dimension, and allows the use of any type of voxel attribute as part of the voxel signatures.