Geographic%20Visualization%20

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Geographic Visualization Visual Data Mining
Yifang Ban Hans Hauska
Geoinformatik Institutionen för Samhällsplanering
och Miljö Skolan för arkitektur och
samhällsbyggnad
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Geoinformatics

• Theories and technologies for collection,
  storage, visualization, analysis, statistical
  estimation and presentation of geographical
  information
• Three main areas
• Remote Sensing
• Geographic Information System (GIS)
• Global Positioning System (GPS)

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Multitemporal RADARSAT SAR Data
Remote Sensing
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GIS and Remote Sensing for monitoring landscape
dynamics
1983
1988
1990
1996
2001
Landsat TM - Archive
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Multitemporal RADARSAT SAR Data
GIS
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GPS
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3D City Models
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Millimetric land subsidence in the Pomona urban
area in California
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Transportation Networks
Courtesy TerraPoint
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Area 2 Before Tsunami                         
                                                  
                                                  
                                                  
    Area 2 After Tsunami                      
                                                  
                                                  
                                                  
      
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First Global Carbon Monoxide (Air Pollution)
Measurements
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DEM Stream Systems
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Real Estate Visulization
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Ur
Uncertainty in geospatial data and decision rules
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Grafikdator

• Onyx2 InfiniteReality Deskside (Silicon Graphics)
• 2 st R10000 CPU
• 512 Mbyte minne
• 64 MByte texturminne
• 11 Milj polygoner/sek

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Mjukvara

• OpenGL och OpenGL Optimizer
• Databashanterare Informix-SE
• Distribuerad datakraft på Linux (Alpha, Intel)

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VR-bord

• Immersive Workbench (Fakespace Inc.)
• Visualiserbar yta 140 x 185 cm
• Upplösning1600x1200 (mono)1280x1024 (stereo)
• Display Marquee 9500
• Tracking Polhemus
• Interaktivitet Muspenna,handskar, 3D boll

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Projektor
Z
Y
Bordsyta
X
Origo
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Tracker
CrystalEyes
Muspenna
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Bakgrund och framtid

• Balplex
• Gipsmodeller
• VISUALISERING
• Modellering
• Simulering
• Animering

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VROOM

• Väggeometri
• Linje, vägytor
• Textur (närbild)
• Undanhållning
• Objekt
• Byggnader
• Fly-throughs
• Realtid
• MPEG

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VROOM

• LOD (Levels of details)
• Manuell
• Automatisk
• Betraktningssätt
• Mono
• Stereo
• Bench
• Anaglyf

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