DataVis2012/Schedule

1/23: Introduction to visualization

Lecturer: Claudio

Topics: Scientific Visualization

Notes: lec01-notes.pdf

Slides: TBA

Animations: NCSA storm animation

Further reading:

Visualization by Tamara Munzner (see PDF on her page)

(Optional reading) Provenance for Computational Tasks: A Survey

(Optional reading) Provenance for Visualizations: Reproducibility and Beyond, C. Silva, J. Freire, and S. Callahan, IEEE Computing in Science and Engineering, 2008.

1/30: The visualization pipeline

Lecturer: Huy Vo

Topics: Procedural vs. Dataflow programming; Using Dataflow for the Vis Pipeline; Dataflow programming with VTK; Dataflow programming with VisTrails; python.

Notes: lec02-notes.pdf

Slides: dataflow.pdf

Further reading:

CMake Tutorial

VTK Pipeline

VTK Tutorial

ParaView Tutorial

2/6: Modeling Data for Visualization

Lecturer: Claudio Silva

Topics: Discrete vs continous data; Sampling and interpolation; Point vs triangulated data; Meshing data types; Regular vs irregular data; Tabular data; Vector and tensor fields; Geometry Processing: Reconstruction and meshing; Simplification; Smoothing; Other Filtering algorithms

Topics (here???): Basic linear algebra; vectors; basic differential geometry (space curves, tangents, normals, surfaces); basic vector calculus (gradient, divergence, curl, gauss' theorem, green's theorem)

Notes: modeling data

Slides: processing.ppt

Further reading:

Basic Signal Processing

Surface Simplification Using Quadric Error Metrics

(Optional Reading) A Memory Insensitive Technique for Large Model Simplification

(Optional Reading) Quadric-based Simplification in any Dimension

http://en.wikipedia.org/wiki/Least_squares

(Optional Reading) Robust Moving Least-squares Fitting with Sharp Features

(Optional Reading) Optimal Bandwidth Selection for MLS Surfaces

2/13: Plotting

Lecturer: Claudio

Topics: Simple Plotting Methods: Dot Plots, Connected Symbol Plots, Scatter Plots, Histograms, Others. Advanced Plotting Methods: Multimodal, Higher Dimensional, Correlation, Uncertainty and Variation.

Notes: PlottingNotes.pdf

Slides: Plotting1.pdf and Plotting2.pdf

Vistrails: PlottingVistrails.zip - Unzip this file in the examples directory of your VisTrails installation and it will add the vistrails along with their data sets (in the data directory).

Further Reading:

• The Elements of Graphing Data. William S. Cleveland, Hobart Press, 2nd Edition, 1994.

• Visualizing Data. William S. Cleveland, Hobart Press, 1993.

• The Visual Display of Quantitative Information. Edward R. Tufte, Graphics Press, 2001.

• Visual Explanations: Images and Quantities, Evidence and Narrative. Edward R. Tufte, Graphics Press, 2997.

• Histogram Bin Size

• Correlation

• Linear Regression

• Box Plots

2/27: Color and Human Perception

Lecturer: Huy Vo

Topics: Human vision system; Optical illusions; Color Science; Color spaces; Color Blindness; Color maps;

Notes:

Slides: human-vision.pdf colorvision-jens.pdf

Links:

• http://en.wikipedia.org/wiki/Eye

• http://www.handprint.com/HP/WCL/color2.html

• How NOT to Lie with Visualization, Bernice E. Rogowitz, Lloyd A. Treinish, IBM Research.

• Color Theory, ColorSpaces, Marc Levoy, Stanford Graphics Lab.

• http://en.wikipedia.org/wiki/Opponent_process

• http://en.wikipedia.org/wiki/Color_models

• http://en.wikipedia.org/wiki/Absolute_color_space

• http://en.wikipedia.org/wiki/Additive_color

• http://en.wikipedia.org/wiki/Subtractive_color

• http://en.wikipedia.org/wiki/RGB_color_model

• http://en.wikipedia.org/wiki/SRGB_color_space

• http://en.wikipedia.org/wiki/CIE_XYZ_color_space

3/5 2D Visualization Techniques

Lecturer:

Topics: 2-D contours, marching quads, marching tris; Color mapping; height fields; NPR; 2-D vector fields, div, grad, curl in 2D; Steady vs Unsteady flows; Glyphs; 2-D streamlines, streaklines, pathlines

Slides:

Notes:

Vistrails:

3/19 Volume Visualization

Lecturer:

Topics: Slicing; Contours; Marching algorithms; Accelerating structures; High-quality contours

Slides:

References:

3/26 Volume Visualization

Lecturer:

Topics: Structured grid techniques: ray-casting, splatting, texture slicing, shear-warp; Unstructured grid techniques; Transfer function specification

Slides:

Notes:

Vistrails:

References:

4/9 Vector & Tensor Visualization

Lecturer:

Topics: DT/MRI intro, glyphs, colormapping, volume rendering; 3D techniques, critical points

Slides:

References:

4/16: Information Visualization

Lecturer:

Topics: Parallel coordinates; Graph visualization; Trees and Graphs; InfoVis Examples

Slides:

Links:

4/23: Information Visualization

Lecturer:

Topics: Parallel coordinates; Graph visualization; Trees and Graphs; InfoVis Examples

Slides:

Links:

5/7: Information Visualization

Lecturer:

Topics: Parallel coordinates; Graph visualization; Trees and Graphs; InfoVis Examples

Slides:

Links: