Work summary from 2009 internship. Using Java to improve visualization of CT images.

1. Presentation Identifier (Title or Location), Month 00, 2008
Utilizing CT Scan Images
Kane Gyovai
Student Intern

2. ‹#›
Outline
• CT Scanner Basics
• Starting Point
• Steps Toward Utilization
• Milestones
• Future Goals
• Summary

3. ‹#›
CT Scanner Basics
• Capabilities
– CT - computed tomography
– Tomography – imaging by sections
– Uses x-rays and a computer to create detailed cross
sectional images
• Use at NETL
– Create cross sections for cores
– Cores representative of real world samples
• Coal, sandstone, dolomite, sand
– Observe changes in cross sections
• User varies pressure, temp., fluid flow, etc.

4. ‹#›
CT Scanner Basics

5. ‹#›
CT Scanner Basics
• Motivation - Carbon sequestration
• Properties of samples ~ properties of source
material
– Physical – porosity, density, modulus of elasticity
– Geochemical – organic and mineral composition
• Up scaling
– Characterize the whole by its parts

6. ‹#›
Starting Point
• CT images from previous experiments
– Multiple files of cross sections
• Very little data
• ImageJ
– Open source Java based program
– Image analysis and manipulation
• Goal – Obtain something useful
• Improve visualization capabilities
– Videos, color schemes, montages
• Density scale?

7. ‹#›
Steps Toward Utilization
• Improved visualization capabilities
– 2D operations – crop, fill, enhance
– Custom pixel based color schemes
– 3D Image Viewer
– Animation Creator

8. ‹#›
Steps Toward Utilization
• Density Scale Recognition
– Thanks to new approach
– Nearly Linear
• Macro programming
– Smaller java based programs
– Broad range of applications
– Easily shared and modified
• Collaboration
– How do we use this new tool?

9. ‹#›
Milestones
• Toolset created for NETL
– 5 tools in set
– Different applications
– Completely expandable
• Analysis simplified greatly
– Day(s) to minutes
• Achieves original goal
– Obtain something useful
• Documentation and User’s Guide

10. ‹#›
Milestones
• Tool set

11. ‹#›
Milestones
• Simplified Analysis

12. ‹#›
Milestones
• Provides Useful Information (quickly)
1.41
1.43
1.45
1.47
1.49
1.51
1.53
1.55
0 5 10 15 20 25 30 35 40
BulkDensity(g/cm3)
Slice Number
Coal Sample Bulk Density Distribution
Start 200psi
End 200psi
Start 400psi
End 400psi
Start 600psi
End 600psi

13. ‹#›
Milestones
• Documentation and User’s Guide

14. ‹#›
Future Goals
• Two new programs being developed
• Integrate with numerical simulation
• Complete documentation
• Publish to website

15. ‹#›
Summary
• CT Scanner Basics
• Starting Point
• Steps Toward Utilization
• Milestones
• Future Goals

16. ‹#›
Image Bibliography
• http://www.lanl.gov/orgs/ees/ees11/geophysics/stimulation/labphoto1.jpg
• http://sbi.oregonstate.edu/images/upscaling.png
• http://www.tiac.net/~sw/ColorChart/pics/ColorChart.gif
• http://blog.taragana.com/wp-content/uploads/2009/06/java.jpg

17. ‹#›
End
• Questions?