Prof. Dr. Reinhart D. KühneGerman Aerospace Center

Institute of Transportation Research

Satellite borne traffic data detection and traffic management

BITS-Seminar, Shanghai, March 4th, 2003

Traffic Objects

Congestion Turning flow

Incident Spreading

Traffic Objects:

Origin - Destination - Relation

Traffic Objects:

Problem: Image distortion due to camera pointing instability on satellites with moderate attitude stability

Real-time focal plane image motion measurement

with an Optical Correlator

and posteriori image correction

Solution :

Enabling Technologies SMART OPTICAL IMAGING

MEDIUM-RESOLUTION MULTI-SPECTRAL IMAGERMEDIUM-RESOLUTION MULTI-SPECTRAL IMAGER

attitude instability

Enabling Technologies

Solved problem: Minimization of data downlink capacity

Onboard Thematic Image Data Reduction

0.15 m

2 m

3 m

Recognition Result Traffic Density

Solved problem: Wide area traffic density estimation with moderate spatial image resolution

Subpixel Car Image Recognition

Spaceborne Earth Observation – Existing Systems

Paris

Tokio

BostonPictures by DigitalGlobe

Service Center:Satellite control infrastructure

Service Management

Service Center:Satellite control infrastructure

Service Management

Secure Web-Based Service Portal 1:

P/L Configuration uplink

Secure Web-Based Service Portal 1:

P/L Configuration uplinkSecure Web-Based Service

Portal 2:R/T Pre-processed Payload Data

Base

Secure Web-Based Service Portal 2:

R/T Pre-processed Payload Data BaseContent Provider:

P/L Configuration uplink planing

Content Provider:P/L Configuration uplink planing

Web-Based Customer PortalTraffic data base for final user

Web-Based Customer PortalTraffic data base for final user

Final User:Web-based access to services via

Internet/GSM etc.

Final User:Web-based access to services via

Internet/GSM etc.

Enabling Technology WEB-BASED ACCESS PORTALS