VistrailsWiki - User contributions [en]

VisLunch/Spring2008/

2008-02-12T19:33:59Z

Yuanzhou: /* 2/22: Creating Computer Games with examples from World Besides */

== 1/11: Introduction ==

Presenter: Claudio Silva

Notes: Organization issues

== 1/18: Global Illumination Techniques ==

Presenter: Jonathan

Topics: Global Illumination Techniques

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Further reading:

== 1/25: Physically based dye advection for flow visualization ==

Presenter: Guo-Shi Li

Topics: Physically based dye advection for flow visualization

Notes: EuroVis 2008 submission

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Further reading:

== 2/1: Cancelled ==

== 2/8: Multifield visualization using local statistical complexity ==

Presenter: Carlos Scheidegger

Topics: Multifield visualization using local statistical complexity(Vis07)

Notes: may also Carlos' SIGGRAPH2008 Submission

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== 2/15: Probabilistic Transfer Functions ==

Presenter: Josh Stratton

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Further reading:

Klaus Lindstrøm's PhD Thesis (google it)

== 2/22: Creating Computer Games with examples from World Besides ==

Presenter: Morten Daehlen

Topics: World Beside is a game based learning environment built on three
pillars: On-line gaming and communication (MMO=Massive Multiplayer Online), a model (or an
approximation) to the real world,and parts of curriculum in high school (in Norway). Within this environment different games for learning purposes are being developed. With emphasis on technical issues and challenges when developing computer games,this talk will give an overview of the major components required to construct advanced computer games.

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== 2/29: GPUs ==

Presenter: Jens Kruger

Topics: GPUs for Fun and Profit

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VisLunch/Spring2008/

2008-02-08T21:16:19Z

Yuanzhou: /* 2/22: ??? */

== 1/11: Introduction ==

Presenter: Claudio Silva

Notes: Organization issues

== 1/18: Global Illumination Techniques ==

Presenter: Jonathan

Topics: Global Illumination Techniques

Notes:

Slides:

Animations:

Further reading:

== 1/25: Physically based dye advection for flow visualization ==

Presenter: Guo-Shi Li

Topics: Physically based dye advection for flow visualization

Notes: EuroVis 2008 submission

Slides:

Animations:

Further reading:

== 2/1: Cancelled ==

== 2/8: Multifield visualization using local statistical complexity ==

Presenter: Carlos Scheidegger

Topics: Multifield visualization using local statistical complexity(Vis07)

Notes: may also Carlos' SIGGRAPH2008 Submission

Slides:

Animations:

Further reading:

== 2/15: Probabilistic Transfer Functions ==

Presenter: Josh Stratton

Topics:

Notes:

Slides:

Animations:

Further reading:

Klaus Lindstrøm's PhD Thesis (google it)

== 2/22: Creating Computer Games with examples from World Besides ==

Presenter: Morten Daehlen

Topics:

Notes:

Slides:

Animations:

Further reading:

== 2/29: GPUs ==

Presenter: Jens Kruger

Topics: GPUs for Fun and Profit

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Further reading:

== 3/7: ??? ==

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VisLunch/Spring2008/

2008-02-06T18:40:18Z

Yuanzhou: /* 2/22: ??? */

== 1/11: Introduction ==

Presenter: Claudio Silva

Notes: Organization issues

== 1/18: Global Illumination Techniques ==

Presenter: Jonathan

Topics: Global Illumination Techniques

Notes:

Slides:

Animations:

Further reading:

== 1/25: Physically based dye advection for flow visualization ==

Presenter: Guo-Shi Li

Topics: Physically based dye advection for flow visualization

Notes: EuroVis 2008 submission

Slides:

Animations:

Further reading:

== 2/1: Cancelled ==

== 2/8: Multifield visualization using local statistical complexity ==

Presenter: Carlos Scheidegger

Topics: Multifield visualization using local statistical complexity(Vis07)

Notes: may also Carlos' SIGGRAPH2008 Submission

Slides:

Animations:

Further reading:

== 2/15: ??? ==

Presenter: Josh Stratton

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Further reading:

== 2/22: GPU ==

Presenter: Jens Kruger

Topics: GPUs for Fun & Profit

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== 2/29: ??? ==

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VisLunch/Spring2008/

2008-01-31T22:21:31Z

Yuanzhou: /* 2/8: ??? */

== 1/11: Introduction ==

Presenter: Claudio Silva

Notes: Organization issues

== 1/18: Global Illumination Techniques ==

Presenter: Jonathan

Topics: Global Illumination Techniques

Notes:

Slides:

Animations:

Further reading:

== 1/25: Physically based dye advection for flow visualization ==

Presenter: Guo-Shi Li

Topics: Physically based dye advection for flow visualization

Notes: EuroVis 2008 submission

Slides:

Animations:

Further reading:

== 2/1: Cancelled ==

== 2/8: Multifield visualization using local statistical complexity ==

Presenter: Carlos Scheidegger

Topics: Multifield visualization using local statistical complexity(Vis07)

Notes: may also Carlos' SIGGRAPH2008 Submission

Slides:

Animations:

Further reading:

== 2/15: ??? ==

Presenter: Josh Stratton

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VisLunch/Spring2008/

2008-01-31T22:13:14Z

Yuanzhou: /* 2/1: Cancelled */

VisLunch/Spring2008/

2008-01-31T22:12:31Z

Yuanzhou: /* 2/8: ??? */

VisLunch/Spring2008/

2008-01-31T22:12:14Z

Yuanzhou: /* 2/15: ??? */

VisLunch/Spring2008/

2008-01-31T22:12:01Z

Yuanzhou: /* 2/8: ??? */

VisLunch/Spring2008/

2008-01-31T22:11:04Z

Yuanzhou: /* 2/1: ??? */

VisLunch/Spring2008/

2008-01-25T00:18:51Z

Yuanzhou:

VisLunch/Spring2008/

2008-01-24T23:23:46Z

Yuanzhou:

VisLunch/Spring2008/

2008-01-24T23:19:19Z

Yuanzhou:

== 1/11: Introduction ==

Presenter: Claudio Silva

Notes: Organization issues

== 1/18: Global Illumination Techniques ==

Presenter: Jonathan

Topics: Global Illumination Techniques

Notes:

Slides:

Animations:

Further reading:

== 1/25: ??? ==

Presenter: Guo-Shi Li

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VisLunch/Spring2008/

2008-01-17T23:20:17Z

Yuanzhou:

== 1/11: Introduction ==

Presenter: Claudio Silva

Notes: Organization issues

== 1/18: Global Illumination Techniques ==

Presenter: Jonathan

Topics: Global Illumination Techniques

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VisLunch/Spring2008/

2008-01-17T23:08:36Z

Yuanzhou: New page: == 1/11: Introduction == Presenter: Claudio Silva Notes: Organization issues == 1/18: Global Illumination Techniques == Presenter: Jonathan Topics: Global Illumination Techniques ...

== 1/11: Introduction ==

Presenter: Claudio Silva

Notes: Organization issues

== 1/18: Global Illumination Techniques ==

Presenter: Jonathan

Topics: Global Illumination Techniques

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SciVisFall2007/VisLunch/Fall2007

2007-12-07T02:09:07Z

Yuanzhou:

Here is the new home of the vis lunch

Oct.19: "Querying and creating visualization by analogy" by Carlos Scheidegger

Oct.26: "Interactive visualization of large higher-order tetrahedral data" by Yuan Zhou

Nov.2: Vis Recap, Congratulations to Carlos, Huy, David, Juliana and Claudio, whose paper wins Vis 2007 Best paper!

Nov.9: "PRIME and its application with VisTrails" by Jianrong Su

Nov.16: "When graphics become visualization " by Prof. Min Chen

Nov.23: No talk, Happy Thanksgiving!

Nov.30: No talk, Lauro Linsś talk is cancelled.

Dec.7 : ¨BLINK: A Language to visualize, recognize, classify and manipulate 3D spaces¨ by Lauro Lins

SciVisFall2007/VisLunch/Fall2007

2007-11-28T21:53:31Z

Yuanzhou:

SciVisFall2007/VisLunch/Fall2007

2007-11-09T23:36:06Z

Yuanzhou:

Here is the new home of the vis lunch

Oct.19: "Querying and creating visualization by analogy" by Carlos Scheidegger

Oct.26: "Interactive visualization of large higher-order tetrahedral data" by Yuan Zhou

Nov.2: Vis Recap, Congratulations to Carlos, Huy, David, Juliana and Claudio, whose paper wins Vis 2007 Best paper!

Nov.9: "PRIME and its application with VisTrails" by Jianrong Su

Nov.16: " " by Prof. Min Chen

Nov.23: No talk, Happy Thanksgiving!

Nov.30: " " by Lauro Lins

SciVisFall2007/Schedule

2007-11-05T23:50:41Z

Yuanzhou: /* 11/1: Simplification Techniques */

== 8/21: Introduction to visualization ==

Lecturer: Claudio

Topics: Scientific Visualization

Notes: [http://www.cs.utah.edu/~csilva/courses/cs5630/lec01-notes.pdf lec01-notes.pdf]

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/lec01.pdf lec01.pdf]

Animations: [http://www.cs.utah.edu/~csilva/courses/cs5630/explosion_640x480-5.mov explosion_640x480-5.mov], [http://www.cs.utah.edu/~csilva/courses/cs5630/fig7.mov fig7.mov], [http://www.cs.utah.edu/~csilva/courses/cs5630/fig8.mov fig8.mov], [http://www.cs.utah.edu/~csilva/courses/cs5630/fig9.mov fig9.mov], [http://www.cs.utah.edu/~csilva/courses/cs5630/SevereTstorm.mov SevereTstorm.mov]

Further reading:

[http://www.sci.utah.edu/~csilva/papers/vis2003.pdf Visualizing Spatial and Temporal Variability in Coastal Observatories], W. Herrera-Jimenez, W. Correa, C. Silva, and A. Baptista, IEEE Visualization 2003.

== 8/23: The visualization pipeline ==

Lecturer: Claudio

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

Notes: [http://www.cs.utah.edu/~csilva/courses/cs5630/lec02-notes.pdf lec02-notes.pdf]

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/lec02.pdf lec02.pdf]

VisTrails: During this class, we built a pipeline equivalent to the cone.tcl (see class slides). Here is the vistrails file: [http://www.cs.utah.edu/~csilva/courses/cs5630/cone.vt cone.vt]

Further reading:

[http://www.cs.utah.edu/~csilva/courses/cs5630/reproducible_vis.pdf Provenance for Visualizations: Reproducibility and Beyond], C. Silva, J. Freire, and S. Callahan, IEEE Computing in Science and Engineering, to appear.

== 8/28: Modeling Data for Visualization ==

Lecturer: Carlos

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

Notes: TBA

Slides: [http://www.sci.utah.edu/~cscheid/scivis_fall07/modelling_1.ppt .ppt file]

Further reading:

There is no required reading for this lecture. The notes will be available shortly. The following papers are there for people that are looking to get more advanced material that will not be covered in class.

=== Interpolation ===

[http://lmi.bwh.harvard.edu/papers/papers/geodesic-loxodromes-final.html Geodesic-loxodromes...] This is the fancy interpolation for diffusion tensors I mentioned in class.

[http://en.wikipedia.org/wiki/Bernstein_polynomial Bernstein polynomials] These are the polynomials used for cubic Bezier curves that I mentioned in class.

==== Separability ====

[http://portal.acm.org/citation.cfm?id=1187793 Extensions of the Zwart-Powell Box spline...] This is a recent paper that shows a class of trivariate reconstruction techniques that are ''not'' separable.

==== Tensors ====

[http://www.cs.utah.edu/research/techreports/2004/pdf/UUCS-04-014.pdf Visualization and Analysis of Diffusion Tensor Fields] Gordon Kindlmann's PhD. thesis, with everything you ever wanted to know about DTI. Section 2.1 has a good primer in tensor algebra.

== 8/30: Modeling Data for Visualization ==

Lecturer: Carlos

Topics: Geometry Processing: Reconstruction and meshing; Simplification; Smoothing; Other Filtering algorithms

Notes: [http://www.sci.utah.edu/~cscheid/scivis_fall07/week2.pdf .pdf file]. If you want to print these, you might want to wait for a week or two, until I finish polishing them.

Slides: [http://www.sci.utah.edu/~cscheid/scivis_fall07/processing.ppt .ppt file] ''These slides include simplificatin algorithms, which I'll talk about next week.''

== 9/4: Elementary Plotting Techniques ==

Lecturer: Steve

Topics: Principles of Graph Construction

Notes: [http://www.sci.utah.edu/~stevec/classes/cs5630/PlottingNotes.pdf PlottingNotes.pdf]

Slides: [http://www.sci.utah.edu/~stevec/slides/SciVis/Plotting1.pdf Plotting1.pdf]

Vistrails: See next lecture.

Further Reading: There is no required reading for this lecture. For those interested in more depth, the following books are very useful:

* 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.

== 9/6: Elementary Plotting Techniques ==

Lecturer: Steve

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

Notes: [http://www.sci.utah.edu/~stevec/classes/cs5630/PlottingNotes.pdf PlottingNotes.pdf]

Slides: [http://www.sci.utah.edu/~stevec/slides/SciVis/Plotting2.pdf Plotting2.pdf]

Vistrails: [http://www.sci.utah.edu/~stevec/classes/cs5630/PlottingVistrails.zip 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). If you don't have permission to write to this directory (CADE users), then unzip the file where you want. Just be aware that in this case the paths for the data files may not be correct for most vistrails and will need to be fixed before they will execute properly.

Further Reading: There is no required reading for this lecture. Some articles of interest:

* [http://www.fmrib.ox.ac.uk/analysis/techrep/tr00mj2/tr00mj2/node24.html Histogram Bin Size]
* [http://en.wikipedia.org/wiki/Correlation Correlation]
* [http://en.wikipedia.org/wiki/Linear_regression Linear Regression]
* [http://en.wikipedia.org/wiki/Box_plot Box Plots]

== 9/11: Color and Human Perception ==

Lecturer: Claudio

Topics: Human vision system; Optical illusions

Notes: TBA

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/human-vision.pdf human-vision.pdf]

Links:

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

http://www.grand-illusions.com/gregory2.htm (also, see the related book: [http://www.amazon.com/Eye-Brain-Richard-L-Gregory/dp/0691048371])

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

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

== 9/13: Color and Human Perception ==

Lecturer: Claudio

Topics: Color Science; Color spaces; Color Blindness; Color maps; Tone mapping

Notes: TBA

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/colorvision.pdf colorvision.pdf]

Links:

Further reading:

[http://www.research.ibm.com/dx/proceedings/pravda/truevis.htm How Not to Lie with Visualization]

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

== 9/18 (a): Color and Human Perception ==

Lecturer: Claudio

Same material as previous lecture.

== 9/18 (b): 2D Visualization Techniques ==

Lecturer: Carlos

Topics: 2-D contours, marching quads, marching tris; Color mapping; height fields; NPR

Slides: [http://www.sci.utah.edu/~cscheid/scivis_fall07/2d_scalar_vis.pdf pdf file]

Notes: [http://www.sci.utah.edu/~cscheid/scivis_fall07/2d_scalar_vis_notes.pdf pdf file]

Vistrails: [http://www.sci.utah.edu/~cscheid/scivis_fall07/ozone_and_data.zip zip file with ozone.vt and data] [http://www.sci.utah.edu/~cscheid/scivis_fall07/asymptotic_decider.vt asymptotic decider in 2d] [http://www.sci.utah.edu/~cscheid/scivis_fall07/elevation.zip heightfields]

Note: These vistrails use relative file paths so you don't need to change each of them individually to match your directory structure. Simply unzip the file to whichever location is more convenient. Then, inside VisTrails, open the VisTrails shell, type:

import os
os.chdir("c:/directory/where/you/unzipped/it")

This will change the directory so you should be able to just run the pipelines.

== 9/20: Math refresher ==

Lecturer: Carlos

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

== 9/25: 2D Visualization Techniques ==

Lecturer: Carlos

Topics: 2-D vector fields, div, grad, curl in 2D; Steady vs Unsteady flows; Glyphs; 2-D streamlines, streaklines, pathlines

Slides: [http://www.sci.utah.edu/~cscheid/scivis_fall07/2d_vector_vis.pdf pdf file]

Notes: coming soon

Vistrails: [http://www.sci.utah.edu/~cscheid/scivis_fall07/vector_vis_1.zip vistrail with steady vector field vis and data] [http://www.sci.utah.edu/~cscheid/scivis_fall07/unsteady.zip vistrail with unsteady vector field vis and data] '''Note:''' Because VTK does not support time-varying datasets directly, we had to create a reasonably ugly hack to simulate unsteady fields. This means the datasets are quite big (80MB in total).

== 9/27 (a): 2D Visualization Techniques ==

Lecturer Carlos

Same material as last lecture.

== 9/27 (b): Volume Vis ==

Lecturer: Claudio

Topics: Slicing; Contours; Marching algorithms

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/iso-basic.pdf iso-basic.pdf]

References:

[http://portal.acm.org/citation.cfm?id=37401.37422 Marching cubes: A high resolution 3D surface construction algorithm]

[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=175782 The asymptotic decider: resolving the ambiguity in marching cubes]

== 10/2: Volume Vis ==

Lecturer: Claudio

Topics: Accelerating structures; High-quality contours

Slides:

[http://www.cs.utah.edu/~csilva/courses/cs5630/iso-speed.pdf iso-speed.pdf]

[http://www.cs.utah.edu/~csilva/courses/cs5630/iso-speed-2.pdf iso-speed-2.pdf]

References:

[http://doi.ieeecomputersociety.org/10.1109/2945.489388 A Near Optimal Isosurface Extraction Algorithm Using the Span Space]

[http://doi.ieeecomputersociety.org/10.1109/2945.485619 Automatic Isosurface Propagation Using an Extrema Graph and Sorted Boundary Cell Lists]

[http://doi.ieeecomputersociety.org/10.1109/2945.597798 Speeding Up Isosurface Extraction Using Interval Trees]

[http://doi.ieeecomputersociety.org/10.1109/SVVG.2004.5 Implicit Occluders]

== 10/4: Volume Vis ==

Lecturer: Claudio

Topics: High quality isosurfaces

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/iso-quality.pdf iso-quality.pdf]

References:

[http://www.cs.utah.edu/~csilva/2007-sub/macet.pdf Edge Transformations for Improving Mesh Quality of Marching Cubes]

[http://www.sci.utah.edu/~csilva/papers/tvcg2006acr.pdf High-Quality Extraction of Isosurfaces from Regular and Irregular Grids]

[http://portal.acm.org/citation.cfm?id=566570.566586 Dual contouring of hermite data]

[http://www.sci.utah.edu/%7Emiriah/research/meshing/vis07meyer.pdf Topology, Accuracy, and Quality of Isosurface Meshes Using Dynamic Particles]

[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1260744 Material interface reconstruction]

== 10/9: Fall break ==

== 10/11: Fall break ==

== 10/16: Volume Vis ==

Lecturer: Claudio

Topics: continued from last class

== 10/18: Direct Volume Rendering ==

Lecturer: Steve

Topics: Introduction to volume rendering

Slides: [http://www.sci.utah.edu/~stevec/classes/cs5630/VolumeRendering1.pdf VolumeRendering1.pdf]

Notes: [http://www.sci.utah.edu/~stevec/classes/cs5630/dvr.pdf dvr.pdf]

vistrails: [http://www.sci.utah.edu/~stevec/classes/cs5630/VolumeRenderingVistrails.zip VolumeRenderingVistrails.zip]

References:
[http://www.llnl.gov/graphics/docs/OpticalModelsLong.pdf Optical Models for Direct Volume Rendering]

== 10/23: Midterm 1 ==

== 10/25: Direct Volume Rendering ==

Lecturer: Steve

Topics: Structured grid techniques: ray-casting, splatting, texture slicing, shear-warp

Slides: [http://www.sci.utah.edu/~stevec/classes/cs5630/VolumeRendering2.pdf VolumeRendering2.pdf]

Notes: same as previous class

vistrails: same as previous class

References:

[http://graphics.stanford.edu/papers/volume-cga88/ Display of Surfaces from Volume Data] - Ray casting paper

[http://portal.acm.org/citation.cfm?id=329138 Interactive Volume Rendering] - Splatting paper, paper requires ACM digital library access

[http://portal.acm.org/citation.cfm?id=197972&dl=ACM&coll=GUIDE Accelerated volume rendering and tomographic reconstruction using texture mapping hardware] - Texture slicing paper, requires ACM digital library access

[http://graphics.stanford.edu/papers/shear/ Fast Volume Rendering Using a Shear-Warp Factorization of the Viewing Transformation] - Shear-warp paper

== 10/30: Cosmology and EEG analysis ==

Guest lecture: Erik Anderson

Topics: Applications of Visualization Techniques, Multi-modal Visualization

Slides: VisualizationApplications [http://www.sci.utah.edu/~eranders/talk/scivis_applications/applications.ppt ppt] | [http://www.sci.utah.edu/~eranders/talk/scivis_applications/applications.odp odp]

VisTrail: Contact me [http://www.sci.utah.edu/~eranders here]

References:

[http://www.sci.utah.edu/~eranders/papers/embs2007_neuro.pdf Working Memory in Schizophrenia] - Overview of rTMS in EEG Analysis

[http://arxiv.org/abs/0706.1270 Cosmology Code Comparison Project] - Cosmological Simulation Project

== 11/1: Simplification Techniques ==

Guest lecture: Yuan Zhou

Topics: Simplification techniques: vertex clustering, vertex decimation, iterative contraction, quadric error based surface and tetrahedral simplification

Slides: [http://graphics.cs.uiuc.edu/~yuanzhou/class/SciVis2007_simplification Simplification]

References:

[http://graphics.cs.uiuc.edu/~garland/papers/quadrics.pdf Surface Simplification Using Quadric Error Metrics]

[http://graphics.cs.uiuc.edu/~garland/papers/STAR99 Multiresolution Modeling : Survey & Future Opportunities]

[http://graphics.cs.uiuc.edu/~garland/papers/TR-2004-2450 Quadric-Based Simplication in Any Dimension]

[http://www.sci.utah.edu/~csilva/papers/tvcg2007cr Streaming Simplification of Tetrahedral Meshes]

== 11/6: Vector and Tensor Visualization ==

Lecturer: Claudio

Topics: LIC; hyper LIC; Topology-based techniques

== 11/8: Vector and Tensor Vis ==

Lecturer: Carlos

Topics: Glyphs; DTI techniques

== 11/13: Aesthetic Issues in Vis ==

Lecturer: Claudio

Topics: Volume Illustration and NPR

== 11/15: Aesthetic Issues in Vis ==

Lecturer: Steve

Topics: Tufte

== 11/20: Aesthetic Issues in Vis ==

Lecturer: Steve

Topics: Tufte

== 11/22: Thanksgiving ==

== 11/27: Information Visualization ==

Lecturer: Carlos

Topics: Parallel coordinates; Graph visualization

== 11/29: Information Visualization ==

Lecturer: Claudio

Topics: Hierarchical data vis; brushing; sizing text

== 12/4: Data Management for Vis ==

== 12/6: Vis for presentation/discovery ==

== 12/11: Open research questions ==

SciVisFall2007/Schedule

2007-11-05T23:47:27Z

Yuanzhou: /* 11/1: Simplification Techniques */

== 8/21: Introduction to visualization ==

Lecturer: Claudio

Topics: Scientific Visualization

Notes: [http://www.cs.utah.edu/~csilva/courses/cs5630/lec01-notes.pdf lec01-notes.pdf]

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/lec01.pdf lec01.pdf]

Animations: [http://www.cs.utah.edu/~csilva/courses/cs5630/explosion_640x480-5.mov explosion_640x480-5.mov], [http://www.cs.utah.edu/~csilva/courses/cs5630/fig7.mov fig7.mov], [http://www.cs.utah.edu/~csilva/courses/cs5630/fig8.mov fig8.mov], [http://www.cs.utah.edu/~csilva/courses/cs5630/fig9.mov fig9.mov], [http://www.cs.utah.edu/~csilva/courses/cs5630/SevereTstorm.mov SevereTstorm.mov]

Further reading:

[http://www.sci.utah.edu/~csilva/papers/vis2003.pdf Visualizing Spatial and Temporal Variability in Coastal Observatories], W. Herrera-Jimenez, W. Correa, C. Silva, and A. Baptista, IEEE Visualization 2003.

== 8/23: The visualization pipeline ==

Lecturer: Claudio

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

Notes: [http://www.cs.utah.edu/~csilva/courses/cs5630/lec02-notes.pdf lec02-notes.pdf]

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/lec02.pdf lec02.pdf]

VisTrails: During this class, we built a pipeline equivalent to the cone.tcl (see class slides). Here is the vistrails file: [http://www.cs.utah.edu/~csilva/courses/cs5630/cone.vt cone.vt]

Further reading:

[http://www.cs.utah.edu/~csilva/courses/cs5630/reproducible_vis.pdf Provenance for Visualizations: Reproducibility and Beyond], C. Silva, J. Freire, and S. Callahan, IEEE Computing in Science and Engineering, to appear.

== 8/28: Modeling Data for Visualization ==

Lecturer: Carlos

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

Notes: TBA

Slides: [http://www.sci.utah.edu/~cscheid/scivis_fall07/modelling_1.ppt .ppt file]

Further reading:

There is no required reading for this lecture. The notes will be available shortly. The following papers are there for people that are looking to get more advanced material that will not be covered in class.

=== Interpolation ===

[http://lmi.bwh.harvard.edu/papers/papers/geodesic-loxodromes-final.html Geodesic-loxodromes...] This is the fancy interpolation for diffusion tensors I mentioned in class.

[http://en.wikipedia.org/wiki/Bernstein_polynomial Bernstein polynomials] These are the polynomials used for cubic Bezier curves that I mentioned in class.

==== Separability ====

[http://portal.acm.org/citation.cfm?id=1187793 Extensions of the Zwart-Powell Box spline...] This is a recent paper that shows a class of trivariate reconstruction techniques that are ''not'' separable.

==== Tensors ====

[http://www.cs.utah.edu/research/techreports/2004/pdf/UUCS-04-014.pdf Visualization and Analysis of Diffusion Tensor Fields] Gordon Kindlmann's PhD. thesis, with everything you ever wanted to know about DTI. Section 2.1 has a good primer in tensor algebra.

== 8/30: Modeling Data for Visualization ==

Lecturer: Carlos

Topics: Geometry Processing: Reconstruction and meshing; Simplification; Smoothing; Other Filtering algorithms

Notes: [http://www.sci.utah.edu/~cscheid/scivis_fall07/week2.pdf .pdf file]. If you want to print these, you might want to wait for a week or two, until I finish polishing them.

Slides: [http://www.sci.utah.edu/~cscheid/scivis_fall07/processing.ppt .ppt file] ''These slides include simplificatin algorithms, which I'll talk about next week.''

== 9/4: Elementary Plotting Techniques ==

Lecturer: Steve

Topics: Principles of Graph Construction

Notes: [http://www.sci.utah.edu/~stevec/classes/cs5630/PlottingNotes.pdf PlottingNotes.pdf]

Slides: [http://www.sci.utah.edu/~stevec/slides/SciVis/Plotting1.pdf Plotting1.pdf]

Vistrails: See next lecture.

Further Reading: There is no required reading for this lecture. For those interested in more depth, the following books are very useful:

* 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.

== 9/6: Elementary Plotting Techniques ==

Lecturer: Steve

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

Notes: [http://www.sci.utah.edu/~stevec/classes/cs5630/PlottingNotes.pdf PlottingNotes.pdf]

Slides: [http://www.sci.utah.edu/~stevec/slides/SciVis/Plotting2.pdf Plotting2.pdf]

Vistrails: [http://www.sci.utah.edu/~stevec/classes/cs5630/PlottingVistrails.zip 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). If you don't have permission to write to this directory (CADE users), then unzip the file where you want. Just be aware that in this case the paths for the data files may not be correct for most vistrails and will need to be fixed before they will execute properly.

Further Reading: There is no required reading for this lecture. Some articles of interest:

* [http://www.fmrib.ox.ac.uk/analysis/techrep/tr00mj2/tr00mj2/node24.html Histogram Bin Size]
* [http://en.wikipedia.org/wiki/Correlation Correlation]
* [http://en.wikipedia.org/wiki/Linear_regression Linear Regression]
* [http://en.wikipedia.org/wiki/Box_plot Box Plots]

== 9/11: Color and Human Perception ==

Lecturer: Claudio

Topics: Human vision system; Optical illusions

Notes: TBA

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/human-vision.pdf human-vision.pdf]

Links:

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

http://www.grand-illusions.com/gregory2.htm (also, see the related book: [http://www.amazon.com/Eye-Brain-Richard-L-Gregory/dp/0691048371])

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

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

== 9/13: Color and Human Perception ==

Lecturer: Claudio

Topics: Color Science; Color spaces; Color Blindness; Color maps; Tone mapping

Notes: TBA

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/colorvision.pdf colorvision.pdf]

Links:

Further reading:

[http://www.research.ibm.com/dx/proceedings/pravda/truevis.htm How Not to Lie with Visualization]

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

== 9/18 (a): Color and Human Perception ==

Lecturer: Claudio

Same material as previous lecture.

== 9/18 (b): 2D Visualization Techniques ==

Lecturer: Carlos

Topics: 2-D contours, marching quads, marching tris; Color mapping; height fields; NPR

Slides: [http://www.sci.utah.edu/~cscheid/scivis_fall07/2d_scalar_vis.pdf pdf file]

Notes: [http://www.sci.utah.edu/~cscheid/scivis_fall07/2d_scalar_vis_notes.pdf pdf file]

Vistrails: [http://www.sci.utah.edu/~cscheid/scivis_fall07/ozone_and_data.zip zip file with ozone.vt and data] [http://www.sci.utah.edu/~cscheid/scivis_fall07/asymptotic_decider.vt asymptotic decider in 2d] [http://www.sci.utah.edu/~cscheid/scivis_fall07/elevation.zip heightfields]

Note: These vistrails use relative file paths so you don't need to change each of them individually to match your directory structure. Simply unzip the file to whichever location is more convenient. Then, inside VisTrails, open the VisTrails shell, type:

import os
os.chdir("c:/directory/where/you/unzipped/it")

This will change the directory so you should be able to just run the pipelines.

== 9/20: Math refresher ==

Lecturer: Carlos

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

== 9/25: 2D Visualization Techniques ==

Lecturer: Carlos

Topics: 2-D vector fields, div, grad, curl in 2D; Steady vs Unsteady flows; Glyphs; 2-D streamlines, streaklines, pathlines

Slides: [http://www.sci.utah.edu/~cscheid/scivis_fall07/2d_vector_vis.pdf pdf file]

Notes: coming soon

Vistrails: [http://www.sci.utah.edu/~cscheid/scivis_fall07/vector_vis_1.zip vistrail with steady vector field vis and data] [http://www.sci.utah.edu/~cscheid/scivis_fall07/unsteady.zip vistrail with unsteady vector field vis and data] '''Note:''' Because VTK does not support time-varying datasets directly, we had to create a reasonably ugly hack to simulate unsteady fields. This means the datasets are quite big (80MB in total).

== 9/27 (a): 2D Visualization Techniques ==

Lecturer Carlos

Same material as last lecture.

== 9/27 (b): Volume Vis ==

Lecturer: Claudio

Topics: Slicing; Contours; Marching algorithms

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/iso-basic.pdf iso-basic.pdf]

References:

[http://portal.acm.org/citation.cfm?id=37401.37422 Marching cubes: A high resolution 3D surface construction algorithm]

[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=175782 The asymptotic decider: resolving the ambiguity in marching cubes]

== 10/2: Volume Vis ==

Lecturer: Claudio

Topics: Accelerating structures; High-quality contours

Slides:

[http://www.cs.utah.edu/~csilva/courses/cs5630/iso-speed.pdf iso-speed.pdf]

[http://www.cs.utah.edu/~csilva/courses/cs5630/iso-speed-2.pdf iso-speed-2.pdf]

References:

[http://doi.ieeecomputersociety.org/10.1109/2945.489388 A Near Optimal Isosurface Extraction Algorithm Using the Span Space]

[http://doi.ieeecomputersociety.org/10.1109/2945.485619 Automatic Isosurface Propagation Using an Extrema Graph and Sorted Boundary Cell Lists]

[http://doi.ieeecomputersociety.org/10.1109/2945.597798 Speeding Up Isosurface Extraction Using Interval Trees]

[http://doi.ieeecomputersociety.org/10.1109/SVVG.2004.5 Implicit Occluders]

== 10/4: Volume Vis ==

Lecturer: Claudio

Topics: High quality isosurfaces

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/iso-quality.pdf iso-quality.pdf]

References:

[http://www.cs.utah.edu/~csilva/2007-sub/macet.pdf Edge Transformations for Improving Mesh Quality of Marching Cubes]

[http://www.sci.utah.edu/~csilva/papers/tvcg2006acr.pdf High-Quality Extraction of Isosurfaces from Regular and Irregular Grids]

[http://portal.acm.org/citation.cfm?id=566570.566586 Dual contouring of hermite data]

[http://www.sci.utah.edu/%7Emiriah/research/meshing/vis07meyer.pdf Topology, Accuracy, and Quality of Isosurface Meshes Using Dynamic Particles]

[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1260744 Material interface reconstruction]

== 10/9: Fall break ==

== 10/11: Fall break ==

== 10/16: Volume Vis ==

Lecturer: Claudio

Topics: continued from last class

== 10/18: Direct Volume Rendering ==

Lecturer: Steve

Topics: Introduction to volume rendering

Slides: [http://www.sci.utah.edu/~stevec/classes/cs5630/VolumeRendering1.pdf VolumeRendering1.pdf]

Notes: [http://www.sci.utah.edu/~stevec/classes/cs5630/dvr.pdf dvr.pdf]

vistrails: [http://www.sci.utah.edu/~stevec/classes/cs5630/VolumeRenderingVistrails.zip VolumeRenderingVistrails.zip]

References:
[http://www.llnl.gov/graphics/docs/OpticalModelsLong.pdf Optical Models for Direct Volume Rendering]

== 10/23: Midterm 1 ==

== 10/25: Direct Volume Rendering ==

Lecturer: Steve

Topics: Structured grid techniques: ray-casting, splatting, texture slicing, shear-warp

Slides: [http://www.sci.utah.edu/~stevec/classes/cs5630/VolumeRendering2.pdf VolumeRendering2.pdf]

Notes: same as previous class

vistrails: same as previous class

References:

[http://graphics.stanford.edu/papers/volume-cga88/ Display of Surfaces from Volume Data] - Ray casting paper

[http://portal.acm.org/citation.cfm?id=329138 Interactive Volume Rendering] - Splatting paper, paper requires ACM digital library access

[http://portal.acm.org/citation.cfm?id=197972&dl=ACM&coll=GUIDE Accelerated volume rendering and tomographic reconstruction using texture mapping hardware] - Texture slicing paper, requires ACM digital library access

[http://graphics.stanford.edu/papers/shear/ Fast Volume Rendering Using a Shear-Warp Factorization of the Viewing Transformation] - Shear-warp paper

== 10/30: Cosmology and EEG analysis ==

Guest lecture: Erik Anderson

Topics: Applications of Visualization Techniques, Multi-modal Visualization

Slides: VisualizationApplications [http://www.sci.utah.edu/~eranders/talk/scivis_applications/applications.ppt ppt] | [http://www.sci.utah.edu/~eranders/talk/scivis_applications/applications.odp odp]

VisTrail: Contact me [http://www.sci.utah.edu/~eranders here]

References:

[http://www.sci.utah.edu/~eranders/papers/embs2007_neuro.pdf Working Memory in Schizophrenia] - Overview of rTMS in EEG Analysis

[http://arxiv.org/abs/0706.1270 Cosmology Code Comparison Project] - Cosmological Simulation Project

== 11/1: Simplification Techniques ==

Guest lecture: Yuan Zhou

Topics: Simplification techniques: vertex clustering, vertex decimation, iterative contraction, quadric error based surface and tetrahedral simplification

Slides: [http://graphics.cs.uiuc.edu/~yuanzhou/class/SciVis2007_simplification Simplification]

References:

[http://graphics.cs.uiuc.edu/~garland/papers/quadrics Surface Simplification Using Quadric Error Metrics]

[http://graphics.cs.uiuc.edu/~garland/papers/STAR99 Multiresolution Modeling : Survey & Future Opportunities]

[http://graphics.cs.uiuc.edu/~garland/papers/TR-2004-2450 Quadric-Based Simplication in Any Dimension]

[http://www.sci.utah.edu/~csilva/papers/tvcg2007cr Streaming Simplification of Tetrahedral Meshes]

== 11/6: Vector and Tensor Visualization ==

Lecturer: Claudio

Topics: LIC; hyper LIC; Topology-based techniques

== 11/8: Vector and Tensor Vis ==

Lecturer: Carlos

Topics: Glyphs; DTI techniques

== 11/13: Aesthetic Issues in Vis ==

Lecturer: Claudio

Topics: Volume Illustration and NPR

== 11/15: Aesthetic Issues in Vis ==

Lecturer: Steve

Topics: Tufte

== 11/20: Aesthetic Issues in Vis ==

Lecturer: Steve

Topics: Tufte

== 11/22: Thanksgiving ==

== 11/27: Information Visualization ==

Lecturer: Carlos

Topics: Parallel coordinates; Graph visualization

== 11/29: Information Visualization ==

Lecturer: Claudio

Topics: Hierarchical data vis; brushing; sizing text

== 12/4: Data Management for Vis ==

== 12/6: Vis for presentation/discovery ==

== 12/11: Open research questions ==

SciVisFall2007/Schedule

2007-11-05T23:34:57Z

Yuanzhou: /* 11/1: Simplification Techniques */

== 8/21: Introduction to visualization ==

Lecturer: Claudio

Topics: Scientific Visualization

Notes: [http://www.cs.utah.edu/~csilva/courses/cs5630/lec01-notes.pdf lec01-notes.pdf]

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/lec01.pdf lec01.pdf]

Animations: [http://www.cs.utah.edu/~csilva/courses/cs5630/explosion_640x480-5.mov explosion_640x480-5.mov], [http://www.cs.utah.edu/~csilva/courses/cs5630/fig7.mov fig7.mov], [http://www.cs.utah.edu/~csilva/courses/cs5630/fig8.mov fig8.mov], [http://www.cs.utah.edu/~csilva/courses/cs5630/fig9.mov fig9.mov], [http://www.cs.utah.edu/~csilva/courses/cs5630/SevereTstorm.mov SevereTstorm.mov]

Further reading:

[http://www.sci.utah.edu/~csilva/papers/vis2003.pdf Visualizing Spatial and Temporal Variability in Coastal Observatories], W. Herrera-Jimenez, W. Correa, C. Silva, and A. Baptista, IEEE Visualization 2003.

== 8/23: The visualization pipeline ==

Lecturer: Claudio

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

Notes: [http://www.cs.utah.edu/~csilva/courses/cs5630/lec02-notes.pdf lec02-notes.pdf]

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/lec02.pdf lec02.pdf]

VisTrails: During this class, we built a pipeline equivalent to the cone.tcl (see class slides). Here is the vistrails file: [http://www.cs.utah.edu/~csilva/courses/cs5630/cone.vt cone.vt]

Further reading:

[http://www.cs.utah.edu/~csilva/courses/cs5630/reproducible_vis.pdf Provenance for Visualizations: Reproducibility and Beyond], C. Silva, J. Freire, and S. Callahan, IEEE Computing in Science and Engineering, to appear.

== 8/28: Modeling Data for Visualization ==

Lecturer: Carlos

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

Notes: TBA

Slides: [http://www.sci.utah.edu/~cscheid/scivis_fall07/modelling_1.ppt .ppt file]

Further reading:

There is no required reading for this lecture. The notes will be available shortly. The following papers are there for people that are looking to get more advanced material that will not be covered in class.

=== Interpolation ===

[http://lmi.bwh.harvard.edu/papers/papers/geodesic-loxodromes-final.html Geodesic-loxodromes...] This is the fancy interpolation for diffusion tensors I mentioned in class.

[http://en.wikipedia.org/wiki/Bernstein_polynomial Bernstein polynomials] These are the polynomials used for cubic Bezier curves that I mentioned in class.

==== Separability ====

[http://portal.acm.org/citation.cfm?id=1187793 Extensions of the Zwart-Powell Box spline...] This is a recent paper that shows a class of trivariate reconstruction techniques that are ''not'' separable.

==== Tensors ====

[http://www.cs.utah.edu/research/techreports/2004/pdf/UUCS-04-014.pdf Visualization and Analysis of Diffusion Tensor Fields] Gordon Kindlmann's PhD. thesis, with everything you ever wanted to know about DTI. Section 2.1 has a good primer in tensor algebra.

== 8/30: Modeling Data for Visualization ==

Lecturer: Carlos

Topics: Geometry Processing: Reconstruction and meshing; Simplification; Smoothing; Other Filtering algorithms

Notes: [http://www.sci.utah.edu/~cscheid/scivis_fall07/week2.pdf .pdf file]. If you want to print these, you might want to wait for a week or two, until I finish polishing them.

Slides: [http://www.sci.utah.edu/~cscheid/scivis_fall07/processing.ppt .ppt file] ''These slides include simplificatin algorithms, which I'll talk about next week.''

== 9/4: Elementary Plotting Techniques ==

Lecturer: Steve

Topics: Principles of Graph Construction

Notes: [http://www.sci.utah.edu/~stevec/classes/cs5630/PlottingNotes.pdf PlottingNotes.pdf]

Slides: [http://www.sci.utah.edu/~stevec/slides/SciVis/Plotting1.pdf Plotting1.pdf]

Vistrails: See next lecture.

Further Reading: There is no required reading for this lecture. For those interested in more depth, the following books are very useful:

* 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.

== 9/6: Elementary Plotting Techniques ==

Lecturer: Steve

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

Notes: [http://www.sci.utah.edu/~stevec/classes/cs5630/PlottingNotes.pdf PlottingNotes.pdf]

Slides: [http://www.sci.utah.edu/~stevec/slides/SciVis/Plotting2.pdf Plotting2.pdf]

Vistrails: [http://www.sci.utah.edu/~stevec/classes/cs5630/PlottingVistrails.zip 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). If you don't have permission to write to this directory (CADE users), then unzip the file where you want. Just be aware that in this case the paths for the data files may not be correct for most vistrails and will need to be fixed before they will execute properly.

Further Reading: There is no required reading for this lecture. Some articles of interest:

* [http://www.fmrib.ox.ac.uk/analysis/techrep/tr00mj2/tr00mj2/node24.html Histogram Bin Size]
* [http://en.wikipedia.org/wiki/Correlation Correlation]
* [http://en.wikipedia.org/wiki/Linear_regression Linear Regression]
* [http://en.wikipedia.org/wiki/Box_plot Box Plots]

== 9/11: Color and Human Perception ==

Lecturer: Claudio

Topics: Human vision system; Optical illusions

Notes: TBA

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/human-vision.pdf human-vision.pdf]

Links:

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

http://www.grand-illusions.com/gregory2.htm (also, see the related book: [http://www.amazon.com/Eye-Brain-Richard-L-Gregory/dp/0691048371])

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

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

== 9/13: Color and Human Perception ==

Lecturer: Claudio

Topics: Color Science; Color spaces; Color Blindness; Color maps; Tone mapping

Notes: TBA

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/colorvision.pdf colorvision.pdf]

Links:

Further reading:

[http://www.research.ibm.com/dx/proceedings/pravda/truevis.htm How Not to Lie with Visualization]

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

== 9/18 (a): Color and Human Perception ==

Lecturer: Claudio

Same material as previous lecture.

== 9/18 (b): 2D Visualization Techniques ==

Lecturer: Carlos

Topics: 2-D contours, marching quads, marching tris; Color mapping; height fields; NPR

Slides: [http://www.sci.utah.edu/~cscheid/scivis_fall07/2d_scalar_vis.pdf pdf file]

Notes: [http://www.sci.utah.edu/~cscheid/scivis_fall07/2d_scalar_vis_notes.pdf pdf file]

Vistrails: [http://www.sci.utah.edu/~cscheid/scivis_fall07/ozone_and_data.zip zip file with ozone.vt and data] [http://www.sci.utah.edu/~cscheid/scivis_fall07/asymptotic_decider.vt asymptotic decider in 2d] [http://www.sci.utah.edu/~cscheid/scivis_fall07/elevation.zip heightfields]

Note: These vistrails use relative file paths so you don't need to change each of them individually to match your directory structure. Simply unzip the file to whichever location is more convenient. Then, inside VisTrails, open the VisTrails shell, type:

import os
os.chdir("c:/directory/where/you/unzipped/it")

This will change the directory so you should be able to just run the pipelines.

== 9/20: Math refresher ==

Lecturer: Carlos

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

== 9/25: 2D Visualization Techniques ==

Lecturer: Carlos

Topics: 2-D vector fields, div, grad, curl in 2D; Steady vs Unsteady flows; Glyphs; 2-D streamlines, streaklines, pathlines

Slides: [http://www.sci.utah.edu/~cscheid/scivis_fall07/2d_vector_vis.pdf pdf file]

Notes: coming soon

Vistrails: [http://www.sci.utah.edu/~cscheid/scivis_fall07/vector_vis_1.zip vistrail with steady vector field vis and data] [http://www.sci.utah.edu/~cscheid/scivis_fall07/unsteady.zip vistrail with unsteady vector field vis and data] '''Note:''' Because VTK does not support time-varying datasets directly, we had to create a reasonably ugly hack to simulate unsteady fields. This means the datasets are quite big (80MB in total).

== 9/27 (a): 2D Visualization Techniques ==

Lecturer Carlos

Same material as last lecture.

== 9/27 (b): Volume Vis ==

Lecturer: Claudio

Topics: Slicing; Contours; Marching algorithms

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/iso-basic.pdf iso-basic.pdf]

References:

[http://portal.acm.org/citation.cfm?id=37401.37422 Marching cubes: A high resolution 3D surface construction algorithm]

[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=175782 The asymptotic decider: resolving the ambiguity in marching cubes]

== 10/2: Volume Vis ==

Lecturer: Claudio

Topics: Accelerating structures; High-quality contours

Slides:

[http://www.cs.utah.edu/~csilva/courses/cs5630/iso-speed.pdf iso-speed.pdf]

[http://www.cs.utah.edu/~csilva/courses/cs5630/iso-speed-2.pdf iso-speed-2.pdf]

References:

[http://doi.ieeecomputersociety.org/10.1109/2945.489388 A Near Optimal Isosurface Extraction Algorithm Using the Span Space]

[http://doi.ieeecomputersociety.org/10.1109/2945.485619 Automatic Isosurface Propagation Using an Extrema Graph and Sorted Boundary Cell Lists]

[http://doi.ieeecomputersociety.org/10.1109/2945.597798 Speeding Up Isosurface Extraction Using Interval Trees]

[http://doi.ieeecomputersociety.org/10.1109/SVVG.2004.5 Implicit Occluders]

== 10/4: Volume Vis ==

Lecturer: Claudio

Topics: High quality isosurfaces

Slides: [http://www.cs.utah.edu/~csilva/courses/cs5630/iso-quality.pdf iso-quality.pdf]

References:

[http://www.cs.utah.edu/~csilva/2007-sub/macet.pdf Edge Transformations for Improving Mesh Quality of Marching Cubes]

[http://www.sci.utah.edu/~csilva/papers/tvcg2006acr.pdf High-Quality Extraction of Isosurfaces from Regular and Irregular Grids]

[http://portal.acm.org/citation.cfm?id=566570.566586 Dual contouring of hermite data]

[http://www.sci.utah.edu/%7Emiriah/research/meshing/vis07meyer.pdf Topology, Accuracy, and Quality of Isosurface Meshes Using Dynamic Particles]

[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1260744 Material interface reconstruction]

== 10/9: Fall break ==

== 10/11: Fall break ==

== 10/16: Volume Vis ==

Lecturer: Claudio

Topics: continued from last class

== 10/18: Direct Volume Rendering ==

Lecturer: Steve

Topics: Introduction to volume rendering

Slides: [http://www.sci.utah.edu/~stevec/classes/cs5630/VolumeRendering1.pdf VolumeRendering1.pdf]

Notes: [http://www.sci.utah.edu/~stevec/classes/cs5630/dvr.pdf dvr.pdf]

vistrails: [http://www.sci.utah.edu/~stevec/classes/cs5630/VolumeRenderingVistrails.zip VolumeRenderingVistrails.zip]

References:
[http://www.llnl.gov/graphics/docs/OpticalModelsLong.pdf Optical Models for Direct Volume Rendering]

== 10/23: Midterm 1 ==

== 10/25: Direct Volume Rendering ==

Lecturer: Steve

Topics: Structured grid techniques: ray-casting, splatting, texture slicing, shear-warp

Slides: [http://www.sci.utah.edu/~stevec/classes/cs5630/VolumeRendering2.pdf VolumeRendering2.pdf]

Notes: same as previous class

vistrails: same as previous class

References:

[http://graphics.stanford.edu/papers/volume-cga88/ Display of Surfaces from Volume Data] - Ray casting paper

[http://portal.acm.org/citation.cfm?id=329138 Interactive Volume Rendering] - Splatting paper, paper requires ACM digital library access

[http://portal.acm.org/citation.cfm?id=197972&dl=ACM&coll=GUIDE Accelerated volume rendering and tomographic reconstruction using texture mapping hardware] - Texture slicing paper, requires ACM digital library access

[http://graphics.stanford.edu/papers/shear/ Fast Volume Rendering Using a Shear-Warp Factorization of the Viewing Transformation] - Shear-warp paper

== 10/30: Cosmology and EEG analysis ==

Guest lecture: Erik Anderson

Topics: Applications of Visualization Techniques, Multi-modal Visualization

Slides: VisualizationApplications [http://www.sci.utah.edu/~eranders/talk/scivis_applications/applications.ppt ppt] | [http://www.sci.utah.edu/~eranders/talk/scivis_applications/applications.odp odp]

VisTrail: Contact me [http://www.sci.utah.edu/~eranders here]

References:

[http://www.sci.utah.edu/~eranders/papers/embs2007_neuro.pdf Working Memory in Schizophrenia] - Overview of rTMS in EEG Analysis

[http://arxiv.org/abs/0706.1270 Cosmology Code Comparison Project] - Cosmological Simulation Project

== 11/1: Simplification Techniques ==

Guest lecture: Yuan Zhou

Topics: Simplification techniques: vertex clustering, vertex decimation, iterative contraction, quadric error based surface and tetrahedral simplification

Slides: [http://graphics.cs.uiuc.edu/~yuanzhou/class/SciVis2007_simplification.pdf]

References:

[http://graphics.cs.uiuc.edu/~garland/papers/quadrics.pdf]
[http://graphics.cs.uiuc.edu/~garland/papers/STAR99.pdf]
[http://graphics.cs.uiuc.edu/~garland/papers/TR-2004-2450.pdf]
[http://www.sci.utah.edu/~csilva/papers/tvcg2007cr.pdf]

== 11/6: Vector and Tensor Visualization ==

Lecturer: Claudio

Topics: LIC; hyper LIC; Topology-based techniques

== 11/8: Vector and Tensor Vis ==

Lecturer: Carlos

Topics: Glyphs; DTI techniques

== 11/13: Aesthetic Issues in Vis ==

Lecturer: Claudio

Topics: Volume Illustration and NPR

== 11/15: Aesthetic Issues in Vis ==

Lecturer: Steve

Topics: Tufte

== 11/20: Aesthetic Issues in Vis ==

Lecturer: Steve

Topics: Tufte

== 11/22: Thanksgiving ==

== 11/27: Information Visualization ==

Lecturer: Carlos

Topics: Parallel coordinates; Graph visualization

== 11/29: Information Visualization ==

Lecturer: Claudio

Topics: Hierarchical data vis; brushing; sizing text

== 12/4: Data Management for Vis ==

== 12/6: Vis for presentation/discovery ==

== 12/11: Open research questions ==