gis and hyperspectral
TRANSCRIPT
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Georgia Tech Research Institute
Georgia Tech Visualization and GISGeorgia Tech Visualization and GIS
Nick [email protected]
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Georgia Tech Research Institute
Georgia Tech Virtual Geographic Information System (GTVGIS)
Georgia Tech Virtual Geographic Information System (GTVGIS)
Integration of:
• Remote Sensing
• GIS
• Visualization
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Georgia Tech Research Institute
GTVGIS, a General Framework forGlobal Geospatial Data and Visualization
• It accepts and integrates all types of geospatial data into a global framework.
• It is scalable to very large data stores and to distributed environments.
• It provides an interactive (“real time”) visualization framework.
• It supports discovery of new information via navigation in context with unfolding detail.
• It supports heterogeneous detail management.
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Georgia Tech Research Institute
Global Architecture•32 zones•8 levels per quadtree•Separate coordinate system at each leaf node (256x256 total nested systems)•1 mm worst case resolution
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Georgia Tech Research InstituteBackground:
Gl Time-dependent Volume Data Quadtree
•Stacked, time-sequenced volumes for fast visualization
Geolayered
ime
tGeospatial Quadtree A
ltitud
e
Longitude
Longitude cone wedge
Latitude plane wedge Latitude
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GTVGIS Fly-inGTVGIS Fly-in
Georgia Tech 3D (GT3D)Georgia Tech 3D (GT3D)
Attributes:• Address• Perimeter• Area• Name
Linked Data:• Pictures• Floor Plans• 3D Models• Movies
GIS Functionality• Route Planning• Distance• Size Selection• etc.
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Georgia Tech Research Institute
GTVGISGTVGIS
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Georgia Tech Research Institute
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Georgia Tech Research Institute
Technologies Technologies
• GIS/RS
• GPS
• Mobile Computing (Wireless)
• Numerical Modeling
• Real Time Data Access
• Visualization/CAVE/Augmented Reality
• WEB
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Georgia Tech Research Institute
Dian Fossey Gorilla FundDian Fossey Gorilla FundCollaboration:• Atlanta Zoo• Dian Fossey Gorilla Fund(see http://www.gorillafund.org)
• Country of Rwanda• National University of Rwanda• Clark Atlanta University• Georgia Institute of Technology• Georgia Tech Research Institute
Erdas Virtual GIS (VGIS)
TECHNOLOGY
• Habitat Suitability• Hyperspectral Image Analysis• GIS
• Change Analysis• Land Cover Characterization• Virtual Reality
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
GIS Center:Research Application Projects
GIS Center:Research Application Projects
• Web Application Development• Natural Hazards• Economic Development• Infrastructure Management• Land Suitability• Air Pollution• Hydrography• Precision Farming
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Georgia Tech Research Institute
Flood Extent Modeling (GT+USGS+NWS)Flood Extent Modeling (GT+USGS+NWS)
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Georgia Tech Research Institute
Severe Storms Center/NSF Large Data VisualizationSevere Storms Center/NSF Large Data Visualization
Initial Demonstrations
• Capture 3D Doppler Radar Backscatterand Velocity
• Geocorrect to Terrain• 3D Render of Volumetric Data• Time Series Visualization
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Georgia Tech Research Institute
Severe Storms CenterSevere Storms Center
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Georgia Tech Research Institute
Severe Storms CenterSevere Storms Center
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Georgia Tech Research Institute
Severe Storms CenterSevere Storms Center
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Georgia Tech Research Institute
Weather Model IntegrationWeather Model Integration
• Visualization of 5D data
• X,Y,Z,Time,variable
• MM5 (Penn State and NCAR)
• Sub-grid-scale nested model
• Predictive based on national, regional, and local measurements
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
Alexandria Digital Earth Prototype(ADEPT)ADEPT – NSF Digital LibraryADEPT – NSF Digital Library
CDL NPACI
InterLib
ADEPT
ADL
digital library services in support of learningdigital library services in support of learning
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Georgia Tech Research Institute
ADEPT geo-information services•Visual information
–indexing the surface of the Earth
•smooth zoom from 10km to 1m
–integration and conflation
•merge, overlay, analyze multiple datasets
–datum and projection
•everything referenced to curved (not flat) Earth surface
–level-of-detail
•varies with focus and resolution of field-of-view
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
Vector GIS DataVector GIS Data
• ESRI Shape Files
• Overlays terrain at LOD
• Precomputed intersections (1st try)
• Initial Query
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
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Georgia Tech Research Institute
MURI Augmented RealityMURI Augmented Reality
• High Detail Georgia Tech Testbed
• Mobile Computing/Display of Map/Image
• GIS Query
• GPS Locations of all Participants
• Wireless Communications
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Georgia Tech Research Institute
Multimodal Interaction in Multiple Environments
Multimodal Interaction in Multiple Environments
Environments•Desktop•Laptop•Mobile (palm, HMD, larger handheld or wearable)•Virtual Workbench•Liveboard•NAVE•Others
Interaction Modes•Mouse•Joystick or Spaceball•Pen-based or touch screen•Wired 3D or wireless 3D•Head tracking, hand-tracking, gesture recognition•Voice•Others
•What are the environmental affordances?•What are user needs?•Is 3D interaction necessary?•How best to navigate large virtual spaces (2D or 3D)?•How to most effectively combine modes?•How to evaluate?
Virtual Reality Cave (NAVE)Virtual Reality Cave (NAVE)
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Georgia Tech Research Institute
Architecture: Agile, Mobile, Collaborative Testbed
Architecture: Agile, Mobile, Collaborative Testbed
Central Terrain Database
NAVE
Mobile Displays
Wireless Terrain Datalink
Position, Terrain Markup, Route Finding, Weather, Friendly/Foe advisories, etc.
w/GPS, bearing, tilt sensors and wireless data.
Local databases download and cache data according to bandwidth, movement, and
rendering speed of each platform.
WirelessTerrain Datalink
WirelessCollaboration Channels
Virtual Workbench
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Georgia Tech Research InstituteDevices: Agile, Mobile, Collaborative Testbed
Two mobile, wearable computers with different displays and different interfaces. The one on the left captures gestures with a camera while the one in the center uses a handheld "twiddler". On the right is the Virtual Workbench set up with a perceptual interface that captures 3D object shapes as well as hand and arm gestures.
Multiscreen, immersive, and inexpensive NAVE environment for command post operations.
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Georgia Tech Research Institute
Mobile, Wireless CoverageGeorgia Tech campus testbed
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Georgia Tech Research Institute
3D Server3D Server
• Rendering on Remote Server
• Database on Remote Server RAID
• Lightweight Web Interface for:
• Navigation
• Mode Selection
• Display
• Query
• Movie Access
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Georgia Tech Research Institute
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Georgia Tech Research Institute
Rwanda (Virungas)Rwanda (Virungas)
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Georgia Tech Research Institute
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Georgia Tech Research InstituteFuture Work
•Fully internetworked structure with geospatial data servers and GTVGIS visual interfaces as clients•Fully portable version of GTVGIS built on Java 3D•Volumetric visualization of time-dependent weather and other data•Integrated GIS capability•Augmented, wearable clients with accurately geo-located terrain visualization
Virtual Reality CaveVirtual Reality Cave
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Georgia Tech Research Institute
ContactsContacts
Nick FaustHead of Image Analysis and Visualization Branch
Associate director for the Center for GIS404-894-0021
Bill RibarskyGraphics, Visualization, and Useability Lab (GVU) -
College of Computing404-894-6148
Steve FrenchDirector for the Center for GIS
Melinda HigginsProgram Manager: CD-GRASS