CBERS: the Brazilian Experience
Gilberto Camara Director for Earth
Observation INPE
Workshop – 3 Years of CBERS, Beijing, October 2002
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Overview
CBERS Ground and Application Segment in Brazil
CBERS Products and Distribution Statistics
CBERS Associated Software Technology
CBERS Applications
Perspectives for CBERS-2 and CBERS-3/4
The rôle of CBERS as an International Cooperation program
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CBERS Ground and Application Segment
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CBERS Ground and Application Segment
Data Reception
Image Production
Software
Develop. Applications
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CCD image of Brasilia
6 Crops= soy (red) and harvest (green)
CCD: Agricultural Region in São Paulo
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São Paulo Coast (CCD)
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IRMSS: Brazilian Coast (NE)
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São Paulo – Rio Janeiro (WFI)
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WFI: Belo Horizonte
Mining = dark regions
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WFI Mosaic: São Paulo State
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CBERS-1 Image Production
Total number
2000 = 653 products
2001 = 757 products
2002 = 863 products (September)
One product = CCD scene (+IRMSS)
CBERS demand is similar to LANDSAT
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Promoting CBERS
Partnerships
Universities, research institutes and industry
Education projects
High-school teachers
ISPRS – International society for remote sensing
Workshops/symposium (SBSR, SELPER, IRSE, etc)
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CBERS: Partnership examples
University of Michigan: mapping selective logging of timber (wood) in Amazon
University of Viçosa (Brazil): Vegetation index mapping
Military: maps with scales ranging from 1:250,000 (WFI) to 1:50,000 (CCD)
University of São Paulo: Geological studies
Agricultural Agency (EMBRAPA): Monitoring the expansion of agricultural area
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CBERS-Associated Software Technology
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R&D in Image Processing and GIS
SPRING – Image processing and GIS software.
Multi-platform (Windows, Linux, Solaris)
Web: http://www.dpi.inpe.br/spring (25.000 downloads)
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Segmentation and
Classification
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Restoration
Objective
Correct sensor distortions
Reduces the blur effect
sensor Restoration
filter
scene Digital
image
Corrected image
f (cycles/pixels) f (cycles/pixels)
1
1
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Restoration Filter
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Image Registration and Mosaicking tools
Objective
Combine two images to generate a large-area composite
Amount of data is very large
Difficult to get control points manually
INPE developed a semi-automatic registration system
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Registration System Interface
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Combination of CBERS Images
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CBERS Application Examples
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A comparison study between CBERS IR-MSS and Landsat TM images to evaluate deforestation in the Brazilian Amazon
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Segmentation Over Color Composite
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COLOR COMPOSITION FINAL MAP
Classification
DEFORESTATION PRIMARY FOREST
WATER BODIES NON-FOREST
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Comparison of Area Estimation
SENSOR DEFORESTATION Km-2
PRIMARY FOREST
Km-2
NON- FOREST
Km-2
WATER BODIES
Km-2
TM-LANDSAT 1771 9666 630 792
IRMSS-CBERS 1721 9577 638 860
Rel. Dif. (%) -2.8 -0.9 1.3 8.6
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CBERS images in Remote Sensing
Training Course for
Grade Teachers
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Perspectives for CBERS-2 and CBERS-3/4
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Perspectives for CBERS-2
Estalishment of a Joint Cooperation Agreement for Ground and
Application Segments
Strong partnership between CRESDA and INPE
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CRESDA-INPE Cooperation
Standards for CBERS image products;
Quality control and quality assessment plans for CBERS images;
A joint commercialization proposal for the marketing of CBERS images for countries other than Brazil and China
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CRESDA-INPE Cooperation
Joint image reception and image production ground station for the CBERS 3 and CBERS 4 satellites
Image processing software to extract information from CBERS
Establishment of an applications development center to develop end- user products
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Ground Segment: CBERS-3/4
To be developed as part of the joint agreement between Brazil and China
Establish an international network of receiving stations for CBERS-3/4
INPE Initiatives
Initial development of ground station for CBERS-2
Replace CBERS-1 processing station
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Concluding Remarks: The Rôle of CBERS for International
Cooperation
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Significant Contribution of CBERS
Competitive advantages of RS imagery
When there is a need to routinely monitor a large area consistently, reliably and/or
independently.
Where there is a need to gather
information rapidly about events whose location and timing are unpredictable.
Where there is a need for cost-effective cartographic mapping, and imagery can replace or complement aerial surveys.
CBERS serves the “public good”
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Significant Contribution of CBERS
International Earth Observation satellites
USA and Europe: Earth Observation as commercial service
Increase image cost for other countries
China and Brazil response
CBERS as a “public-good” satellite
International cooperation programs
Major oportunity for CBERS!
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Conclusion
Many thanks and honors
CAST for developing CBERS-1
CNSA and COSTIND for supporting CAST
CRESDA for the application
development and cooperation with INPE
May CBERS Project have a long life!
