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Exploratory visualization based on - Thomas Lewiner - PUC-Rio

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Exploratory visualization based on - Thomas Lewiner - PUC-Rio
Exploratory visualization
based on
multidimensional transfer
functions and star coordinates
Alex Laier Bordignon,
Rener Castro,
Hélio Lopes,
Thomas Lewiner and
Geovan Tavares
Department of Mathematics – PUC-Rio
2/12
Introduction/Motivation
How to analize multi-dimensional data in 2D ?
3/12
Star Coordinates
Star coordinates
analysis
4/12
1) project the points
2) generate the density map
5/12
Interactive axis choice
6/12
Giving weight to an axis
7/12
Multidimensional
transfer functions
Six dimensional space
Map to color space
Transfer function
Real time feedback
8/12
Painting the clusters,
interactively building a
transfer function
9/12
Results
10/12
Results
11/12
Results
12/12
Next steps
Automatic cluster detection
GPU
Improved paint tools
Best projection computation
Thanks for your
attention!
http://www.mat.puc-rio.br/~alexlaier
http://www.matmidia.mat.puc-rio.br/
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