Exploration and visualization of large scale time varying and unstructured volume data
Download
1 / 35

visualization and graphics research group - PowerPoint PPT Presentation


  • 286 Views
  • Updated On :

Exploration and Visualization of Large-scale, Time-varying and Unstructured Volume Data Lars Linsen, Ralph Bruckschen, Jaya Sreevalsan-Nair, Christof Nuber, Bernd Hamann, Kenneth I. Joy Center for Image Processing and Integrated Computing (CIPIC) University of California, Davis

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'visualization and graphics research group' - omer


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Exploration and visualization of large scale time varying and unstructured volume data l.jpg

Exploration and Visualization of Large-scale, Time-varying and Unstructured Volume Data

Lars Linsen, Ralph Bruckschen, Jaya Sreevalsan-Nair, Christof Nuber, Bernd Hamann, Kenneth I. Joy

Center for Image Processing and Integrated Computing (CIPIC)

University of California, Davis

Presentation at All-Hands Meeting ‘03

San Diego, CA

March 18 - 21, 2003


Volume data representation l.jpg
Volume data representation and Unstructured Volume Data

regular / structured irregular / unstructured

imaging data

(stack of images)

simulated data

(numerically computed)

measured data

(distributed sensors)

+ implicit grid connectivity + high adaptivity

+ implicit vertex positions

applications

advantages

All-Hands Meeting '03


Volume data representation3 l.jpg
Volume data representation and Unstructured Volume Data

regular / structured irregular / unstructured

imaging data

(stack of images)

simulated data

(numerically computed)

measured data

(distributed sensors)

+ implicit grid connectivity + high adaptivity

+ implicit vertex positions

changing over time

applications

advantages

All-Hands Meeting '03


Overview l.jpg
Overview and Unstructured Volume Data

  • Wavelet-based multiresolution with subdivision

  • - regular

  • - provides high adaptivity

  • - time-varying

  • 2. Multiresolution over unstructured hexahedral grids

  • - irregular

  • Point-based high-resolution visualization

  • - regular / irregular

  • - simple rendering primitives

All-Hands Meeting '03


Overview5 l.jpg
Overview and Unstructured Volume Data

  • Wavelet-based multiresolution with subdivision

  • - regular

  • - provides high adaptivity

  • - time-varying

  • 2. Multiresolution over unstructured hexahedral grids

  • - irregular

  • Point-based high-resolution visualization

  • - regular / irregular

  • - simple rendering primitives

All-Hands Meeting '03


Subdivision l.jpg
subdivision and Unstructured Volume Data

polyhedral shapes:

All-Hands Meeting '03


Downsampling filter l.jpg
Downsampling filter and Unstructured Volume Data

w/o wavelets

w/ wavelets

Linear B-spline wavelet

downsampling filter:

Brain: 1050 x 970 x 753

original

All-Hands Meeting '03


Isosurface extraction l.jpg
Isosurface extraction and Unstructured Volume Data

w/ wavelets

w/o wavelets

Richtmyer-Meshkov instability: 1024 x 1024 x 1024

All-Hands Meeting '03


Isosurface extraction9 l.jpg
Isosurface extraction and Unstructured Volume Data

w/ wavelets

w/o wavelets

Richtmyer-Meshkov instability: 1024 x 1024 x 1024

All-Hands Meeting '03


Isosurface extraction10 l.jpg
Isosurface extraction and Unstructured Volume Data

w/ wavelets

w/o wavelets

Richtmyer-Meshkov instability: 1024 x 1024 x 1024

All-Hands Meeting '03


Isosurface extraction11 l.jpg
Isosurface extraction and Unstructured Volume Data

w/ wavelets

w/o wavelets

Richtmyer-Meshkov instability: 1024 x 1024 x 1024

All-Hands Meeting '03


Isosurface extraction12 l.jpg
Isosurface extraction and Unstructured Volume Data

w/ wavelets

w/o wavelets

Richtmyer-Meshkov instability: 1024 x 1024 x 1024

All-Hands Meeting '03


Isosurface extraction13 l.jpg
Isosurface extraction and Unstructured Volume Data

w/ wavelets

w/o wavelets

Richtmyer-Meshkov instability: 1024 x 1024 x 1024

All-Hands Meeting '03


Isosurface extraction14 l.jpg
Isosurface extraction and Unstructured Volume Data

w/ wavelets

w/o wavelets

Richtmyer-Meshkov instability: 1024 x 1024 x 1024

All-Hands Meeting '03


Isosurface extraction15 l.jpg
Isosurface extraction and Unstructured Volume Data

w/ wavelets

w/o wavelets

Richtmyer-Meshkov instability: 1024 x 1024 x 1024

All-Hands Meeting '03


Isosurface extraction16 l.jpg
Isosurface extraction and Unstructured Volume Data

w/ wavelets

w/o wavelets

Richtmyer-Meshkov instability: 1024 x 1024 x 1024

All-Hands Meeting '03


Isosurface extraction17 l.jpg
Isosurface extraction and Unstructured Volume Data

w/ wavelets

w/o wavelets

Richtmyer-Meshkov instability: 1024 x 1024 x 1024

All-Hands Meeting '03


Isosurface extraction18 l.jpg
Isosurface extraction and Unstructured Volume Data

w/ wavelets

w/o wavelets

Richtmyer-Meshkov instability: 1024 x 1024 x 1024

All-Hands Meeting '03


Isosurface extraction19 l.jpg
Isosurface extraction and Unstructured Volume Data

w/ wavelets

w/o wavelets

Richtmyer-Meshkov instability: 1024 x 1024 x 1024

All-Hands Meeting '03


Isosurface extraction20 l.jpg
Isosurface extraction and Unstructured Volume Data

w/ wavelets

w/o wavelets

Richtmyer-Meshkov instability: 1024 x 1024 x 1024

All-Hands Meeting '03


Isosurface extraction21 l.jpg
Isosurface extraction and Unstructured Volume Data

w/ wavelets

w/o wavelets

Richtmyer-Meshkov instability: 1024 x 1024 x 1024

All-Hands Meeting '03


Subdivision22 l.jpg
subdivision and Unstructured Volume Data

Hypercube:

1

All-Hands Meeting '03


Subdivision23 l.jpg
subdivision and Unstructured Volume Data

All-Hands Meeting '03


Time varying volume data l.jpg
Time-varying volume data and Unstructured Volume Data

Argon bubble: 640 x 256 x 256 x 450

w/o wavelets

w/ wavelets

All-Hands Meeting '03


Overview25 l.jpg
Overview and Unstructured Volume Data

  • Wavelet-based multiresolution with subdivision

  • - regular

  • - provides high adaptivity

  • - time-varying

  • 2. Multiresolution over unstructured hexahedral grids

  • - irregular

  • Point-based high-resolution visualization

  • - regular / irregular

  • - simple rendering primitives

All-Hands Meeting '03


Unstructured hexahedral grids l.jpg
Unstructured hexahedral grids and Unstructured Volume Data

Irregular multiresolution hierarchy:

2624 cells 824 cells 524 cells

All-Hands Meeting '03


Unstructured hexahedral grids27 l.jpg
Unstructured hexahedral grids and Unstructured Volume Data

Visualization via cutting planes (oil pressure):

2624 cells 824 cells 524 cells

All-Hands Meeting '03


Time varying unstructured hexahedral grids l.jpg
Time-varying unstructured hexahedral grids and Unstructured Volume Data

Visualization via

isosurfaces

(oil concentration):

All-Hands Meeting '03


Overview29 l.jpg
Overview and Unstructured Volume Data

  • Wavelet-based multiresolution with subdivision

  • - regular

  • - provides high adaptivity

  • - time-varying

  • 2. Multiresolution over unstructured hexahedral grids

  • - irregular

  • Point-based high-resolution visualization

  • - regular / irregular

  • - simple rendering primitives

All-Hands Meeting '03


Point based high resolution visualization l.jpg
Point-based high-resolution visualization and Unstructured Volume Data

High-resolution visualization at interactive frame rates

Bottleneck: Loading data from hard disk

  • Sort points by color value (color implicit, location stored)

  • Sort colors

  • Data encoding

    Rendering:

  • Point-based

  • Splatting

All-Hands Meeting '03


Point based high resolution visualization31 l.jpg
Point-based high-resolution visualization and Unstructured Volume Data

Human brain: 1050 x 970 x 753

All-Hands Meeting '03


Point based high resolution visualization32 l.jpg
Point-based high-resolution visualization and Unstructured Volume Data

Visible Female Human

(2048 x 1216 x 5186):

All-Hands Meeting '03


Conclusion l.jpg
Conclusion and Unstructured Volume Data

  • Exploration and visualization of

  • large-scale,

  • unstructured and/or

  • time-varying volume data

  • based on

  • multiresolution or

  • special storage scheme / data retrieval.

All-Hands Meeting '03


Acknowledgments l.jpg
Acknowledgments and Unstructured Volume Data

  • NPACI – SDSC, The Scripps Research Institute

  • CASC, Lawrence Livermore National Laboratory

  • Edward G. Jones, Center for Neuroscience, UC Davis

  • Mary Wheeler, Malgorzata Peszynska, TICAM, UT Austin

  • Arthur W. Toga, UCLA

  • Edward G. Jones, Center for Neuroscience, UC Davis

  • CASC, Lawrence Livermore National Laboratory

  • CCSE, Lawrence Berkeley National Laboratory

  • Victor M. Spitzer, National Library of Medicine

All-Hands Meeting '03


Contact l.jpg
Contact and Unstructured Volume Data

Lars Linsen

Center for Image Processing and Integrated Computing (CIPIC)

Department of Computer Science

University of California, Davis

[email protected]

http://graphics.cs.ucdavis.edu

All-Hands Meeting '03


ad