Pausiris - MONA Volume Visualistion Paul Bourke Contents iVEC - - PowerPoint PPT Presentation

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Pausiris - MONA Volume Visualistion Paul Bourke Contents iVEC - - PowerPoint PPT Presentation

Sep 17, 2022 103 likes •589 views

Pausiris - MONA Volume Visualistion Paul Bourke Contents iVEC Visualisation @ iVEC Some history Ta-Sheret-Min Volume visualisation Cat Pausiris Live example MONA exhibition iVEC

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Pausiris - MONA Volume Visualistion

Paul Bourke

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Contents

  • iVEC
  • Visualisation @ iVEC
  • Some history
  • Ta-Sheret-Min
  • Volume visualisation
  • Cat
  • Pausiris
  • Live example
  • MONA exhibition
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iVEC

  • Unincorporated joint venture between the 5 public research organisations in

Western Australia UWA - Curtin - Murdoch - ECU - CSIRO

  • Main teams: supercomputing - data - visualisation
  • Managing the Pawsey facility, providing the compute for the Square Kilometer Array

Pathfinder

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Visualisation @ IVEC

  • Visualisation is around the use of advanced computer graphics and algorithms to

provide researchers with insight into their datasets.

  • An interesting mixture between hard core computer science, engineering and

technology but there is also a creative aspect.

  • Outcomes include
  • revealing something new in a dataset
  • providing understanding faster than by using lower order techniques
  • revealing errors, for example in simulation data
  • In addition to pure research, visualisation used
  • to convey research to colleagues
  • convey research to peers at conferences
  • visuals for papers
  • public outreach and education
  • outreach through museums, science centers
  • artistic expressions
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History: Tasmania Museum and Art Gallery

  • TMAG - Islands to Ice exhibition.
  • Artist: Peter Morse.
  • Reasonable scale stereoscopic

3D theatre installed in 2006.

  • Cleaned up and presented a

number of high resolution stereoscopic photographs by Frank Hurley.

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Islands to Ice

  • Wonderful collection of stereoscopic pairs on glass plates.
  • Scanned and “cleaned up”.
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Ta-Sheret-Min

  • Relatively low resolution 3D CT scan.
  • 2008-2009
  • Egypt, Late Period, end 26th – 28th Dynasty, c. 664–

399 BCE;

  • Human remains, linen wrappings, wood, plaster,

pigment.

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Synthetic holograms

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Crystal prints

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Volume Visualisation

  • Volumetric data is now very common to a very wide range of disciplines.
  • 3D scanning of physical objects. For example MRI, CT, MicroCT.
  • Representations of simulations. For example fluid dynamics, cosmology, finite

element techniques in engineering.

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Voxels

  • A digital image contains some quantity

sampled on a regular grid on a 2D plane.

  • In a volumetric dataset there is some

quantity sampled on a regular 3D grid.

In a volumetric dataset there is some quantity sampled on a regular 3D grid.

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Examples of volume visualisation

Cosmological simulations

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Volume visualisation

  • The process of exploring and revealing the structure/interior of a volumetric dataset.
  • The general approach involves a mapping between voxel values and colour/
  • pacity.
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Medical research

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Raw data

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Cat

  • Even lower resolution.
  • Remember CT only gives

density so all colours are fake.

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Pausiris

  • Egypt, Ptolemaic to Roman Period, 100 BCE – CE 100.
  • Human remains encased in stucco plaster with glass eyes, incised and painted

decoration.

  • Provenance and identity had been confirmed.
  • Skeletal structure was intact, unopened.
  • Finally a high resolution CT (Computed Tomography) scan from the Hobart hospital

newly acquired scanner.

  • Scanned in 3 parts, needed to be reassembled.
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Whole mummy visualisation

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Porosity

  • Volume rendering can also be applied to small samples for forensic or materials

testing.

  • 1cm ^3 sample.
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Animations

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Live Example

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MONA

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Pausiris gallery

Artists impression

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Pausiris gallery, 24 hours to go

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Pausiris gallery (final)

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Cabinet

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Cabinet

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Cabinet

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Cabinet

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Pausiris gallery

  • Andres Serrano.
  • At what point does a dead person become an artefact rather than a person?

A “he/she” vs an “it”?

  • The Morgue (Blood Transfusion Resulting In Aids), 1992.
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Questions? After the break - 3D reconstruction from photographs