Geoinformatics The start for solving any geo-related problem

Mathias LemmensDepartment of Geodesy, Section GIS Technology

Delft University of Technology, The Netherlands

GIMA Module 1 08/09/09

Delft University of TechnologyDelft University of TechnologyDepartment of GeodesyDepartment of Geodesy

The Geomatic ProcessThe Geomatic Process

Data CaptureTachymetryGPSPhotogrammetryRS

Data StorageGISTechnologyDatabasesCadastres

AnalysisApplicationDependent

Comm./VisualisationMaps

Geo-managementRural and UrbanLandmanagement

Quality Control

Geo-data/informationGeo-data/information

• Geometry (where?)• Thematic (what?)• Topology• Time

ExpansionExpansion

• Technology– New Sensors

• GPS, Ikonos, LiDAR, digital cameras, InSAR

– High resolution

– From 2D to 3D

– Computer technology

– Virtual Reality

– Telecommunication (Internet)

• Society– World population

– Mobility

– Local conflicts

– Communication

– Food production

– Energy consumption

– Exploration of natural resources and sea areas

– Intensified land use

Landsat MSSLandsat MSS IKONOSIKONOS

Radar on IceRadar on Ice

Digital Cameras of IGNDigital Cameras of IGN

AirborneDigital FrameCamera of IGN

Double Swath ColourCamera

From 2D to 3DFrom 2D to 3D

1. Start from scratch2. Use existing 2D digital maps

3D = 2D + 1D3D = 2D + 1D

2D Digital Map Add Third Dimension Add Texture

Laser-AltimetryLaser-Altimetry

GPS

INSLaser Pulses(80,000/sec)

Computer-technologyComputer-technology

• Map -> Files• Lines -> Objects• Queries

– compute fastest route A -> B

– find varanasi university

– determination of land owner when planning a new road

– to monitor transportation

– projection of a design on the existing (map) situation

ComputertechnologieComputertechnologie

Dual architecture Layered architecture Integrated architecture

Virtual RealityVirtual Reality

Virtual Reality FunctionalityVirtual Reality Functionality

Visuali-sation

VirtualReality

ActionInformationextraction

Navigation

GII: geo-information at the source

ConclusionsConclusions

• Without information people are living in blindness

• Any geo-science needs geo-data and geo-information to achieve its goals and to tackle today’s complexity of earth-related problems, increasing geo-information is required

• Geomatics is the science concerned with the developing of technologies and methodologies for collecting, storing, processing and dissemination of geo-data and geo-information

• The processing of the mass of geo-data emerging from new sensor technologies requires automation