GIS and Hyperspectral

000516 MITRE - 1

Georgia Tech Research Institute

Georgia Tech Visualization and GISGeorgia Tech Visualization and GIS

Nick [email protected]

000516 MITRE - 2


Georgia Tech Virtual Geographic Information System (GTVGIS)

Georgia Tech Virtual Geographic Information System (GTVGIS)

Integration of:

• Remote Sensing

• GIS

• Visualization

000516 MITRE - 3


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.

000516 MITRE - 4


Global Architecture•32 zones•8 levels per quadtree•Separate coordinate system at each leaf node (256x256 total nested systems)•1 mm worst case resolution

000516 MITRE - 5

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

000516 MITRE - 6


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.

000516 MITRE - 10


GTVGISGTVGIS

000516 MITRE - 11


000516 MITRE - 12


Technologies Technologies

• GIS/RS

• GPS

• Mobile Computing (Wireless)

• Numerical Modeling

• Real Time Data Access

• Visualization/CAVE/Augmented Reality

• WEB

000516 MITRE - 13


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

000516 MITRE - 14


000516 MITRE - 15


000516 MITRE - 16


000516 MITRE - 17


000516 MITRE - 18


000516 MITRE - 19


000516 MITRE - 20


000516 MITRE - 21


000516 MITRE - 22


000516 MITRE - 23


000516 MITRE - 24


000516 MITRE - 25


000516 MITRE - 26


000516 MITRE - 28


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

000516 MITRE - 31


Flood Extent Modeling (GT+USGS+NWS)Flood Extent Modeling (GT+USGS+NWS)

000516 MITRE - 32


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

000516 MITRE - 33


Severe Storms CenterSevere Storms Center

000516 MITRE - 34



000516 MITRE - 35



000516 MITRE - 36


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

000516 MITRE - 37


000516 MITRE - 38


000516 MITRE - 39


000516 MITRE - 40


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

000516 MITRE - 41


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

000516 MITRE - 42


000516 MITRE - 43


000516 MITRE - 44


Vector GIS DataVector GIS Data

• ESRI Shape Files

• Overlays terrain at LOD

• Precomputed intersections (1st try)

• Initial Query

000516 MITRE - 45


000516 MITRE - 46


000516 MITRE - 47


000516 MITRE - 48


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

000516 MITRE - 49


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)

000516 MITRE - 51


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

000516 MITRE - 52

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.

000516 MITRE - 53


Mobile, Wireless CoverageGeorgia Tech campus testbed

000516 MITRE - 54


3D Server3D Server

• Rendering on Remote Server

• Database on Remote Server RAID

• Lightweight Web Interface for:

• Navigation

• Mode Selection

• Display

• Query

• Movie Access

000516 MITRE - 55


000516 MITRE - 56


Rwanda (Virungas)Rwanda (Virungas)

000516 MITRE - 57


000516 MITRE - 58

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

000516 MITRE - 60


ContactsContacts

Nick FaustHead of Image Analysis and Visualization Branch

Associate director for the Center for GIS404-894-0021

[email protected]

Bill RibarskyGraphics, Visualization, and Useability Lab (GVU) -

College of Computing404-894-6148

[email protected]

Steve FrenchDirector for the Center for GIS

[email protected]

Melinda HigginsProgram Manager: CD-GRASS

[email protected]

mailto:[email protected]

GIS and Hyperspectral

Documents

Transcript of GIS and Hyperspectral