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Visualization Technology Basic

Nov.12, 2013 Visualization of 3D CG. Visualization Technology Basic. Masaki Hayashi. Lecture assigning. What, how and why is visualization?  Steven Bachelder 3D CG basic and a tool usage  Jonatan Österberg Technical issue of visualization  Masaki Hayashi.

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Visualization Technology Basic

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  1. Nov.12, 2013Visualization of 3D CG Visualization Technology Basic Masaki Hayashi

  2. Lecture assigning • What, how and why is visualization? Steven Bachelder • 3D CG basic and a tool usage JonatanÖsterberg • Technical issue of visualization Masaki Hayashi I will focus on the technical aspect of visualization.

  3. Today’s lecture • Key issue of 3DCG visualization • Available technologies of visualization • Some show cases Overview of visualization method (I will introduce the principles behind the technologies as much as possible)

  4. Principle behind the technology It is important to know the technical issue even if you are not a technical person. TOOL Input Output eg. Photoshop • So that you can use the tool efficiently. • Not to be cheated by a technician.

  5. Visualization Very wide meaning Creative visualization Flow visualization Geovisualization Illustration Information graphics visual representations of information Information visualization Interactive visualization Music visualization Scientific visualization Software visualization Visualization (computer graphics)

  6. Visualization with 3DCG To make a model  Using CG tool (by Jonatan) To digitize a real thing  Digitization technique (by me)

  7. Three phases of visualization 1Acquisition 2 Representation User interface Digitization, modeling 3 Dissemination Storage & Network & Computer Display, Web

  8. Acquisition • Filming •  Photograph • Laser scanning •  Measurement by laser beam • Photogrammetry •  Reconstruct geometry from multiple pictures

  9. Filming • Digital camera • Resolution, White balance, Focal length, RAW data, Lighting • Image scannerResolution, Color depth • Panoramic image

  10. Laser scanning • Range: Small object, statue, ruin to city landscape • + Aerial • Output: 3D point cloud • x, y, z, + (i, r, g, b) • Multiple measurements: Compensation of the shadow Example:ScanView(CMU) Minolta-Konica Vivid 9i ILRIS  Intelligent Laser Ranging and Imaging Systems 3m – 1000m (Optech) IMView Peru (landscape), Hampson museum (artifact)

  11. Photogrammetry • Digital camera • Multiple filming and software reconstruction • Range: Same as scanner • Output: 3D point cloud + color x, y, z, r, g, b • Compensation of shadow Example: PhotoScan (Agisoft) Acute3D

  12. Representation • Device: • PC • Monitor • Screen projection • Head-mounted display • Images: • 2D picture • 2D panoramic image • 3D CG

  13. Virtual Museum • Real space • Immersive VR • Big display • AR • Web service • Floor map navigation • Panorama walkthrough • Art work viewing • 3DCG walkthrough

  14. Immersive display HMD (Head Mounted Display) Latest Classic

  15. Immersive display CAVE(Cave Automatic Virtual Environment) Comes with head tracking, stereoscopy, wand, multiple loudspeakers

  16. Immersive display ImmersaDesk Comes with head tracking, stereoscopy, wand, stereo sound

  17. Big display 4K / 8K 4K LCD Monitor (Astrodesign) 60-inch 8K PDP Monitor (Panasonic) 145-inch 8K projector (NHK)

  18. Big display Multi-display Curved screen with 3 projectors (22m x 6m) (Toppan)

  19. Big display Multi-display Cleveland Museum (12m x 1.5m) 23 times HDTV with touch panel

  20. AR ( Augmented Reality ) Real image + CG AR information service Google glass

  21. AR ( Augmented Reality ) Real image + CG A board with marker CG is composited in real-time

  22. Panoramic display Panoramic movie Google Art Project PERISCOPE ( DNP )

  23. Web service 360-degree image, floor plan navigation, information display Louvre Virtual Tours http://musee.louvre.fr/visite-louvre/index.html?defaultView=rdc.s46.p01&lang=ENG

  24. Web service Panorama view, view point transition, information display Smithsonian National Museum of Natural History http://www.mnh.si.edu/vtp/1-desktop/

  25. Web service Google Art Project Panorama view + view point transition (same technique used in Street View) http://www.google.com/culturalinstitute/collection/van-gogh-museum?projectId=art-project&source=maps.sv

  26. Web service Google Art Project Detail observation mode + related information

  27. Web service 3DCG walkthrough ( UNITY based 3D walkthrough ) GRAPHTWERK http://3dstellwerk.com/en/

  28. Web service 3DCG walkthrough 3D Ancient Wonders (Shockwave Player, UNITY ) http://www.3dancientwonders.com/index.php

  29. Web service 3DCG object handing The Virtual HampsonMuseum ( VRML, PDF, OBJ data ) http://hampson.cast.uark.edu/

  30. Dissemination There is not so many technical issue Rather cultural issue • Devices for users: •  PC, Tablet, Smartphone, etc. • Ways of reaching:  Web, Internet, Mobile, etc. • User interactions:  Keyboard, Touch screen, Voice control, Haptic device, etc.

  31. Dissemination • Some keywords • Links • Tagging • Rating (likes) • Keyword searching • Personalization • Community • SNS Example of social tagging (from Steve Project)

  32. Dissemination Examples of virtual museum Joconde Portal collections of museums in France 500,000 objects http://www.culture.gouv.fr/documentation/joconde/fr/ Artefacts Canada 3,000,000 objects http://www.pro.rcip-chin.gc.ca/artefact/index-eng.jsp Steve Project “Steve tagger” social tagging http://tagger.steve.museum/ The J. paul Getty Museum “My Getty” Bookmarks http://www.getty.edu/mygetty/

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