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On-demand EO Processing Services in a 
federation of European Ground Segments 
Jérôme Gasperi 
Innovation 
Toulouse, France - 5 septembre 2014
Web Processing Service 
What is WPS ? 
WPS in a Ground Segments Federation 
Image processing 
OWS-10 OGC Testbed 
GSCB Federated Project Pilot
Web Processing Service 
What is WPS ?
WPS is an OGC standard that defines how to publish, describe and 
execute geospatial processes
http 
Web application WPS P r o c e s s in g a
Web Processing Service 
Image processing - Assisted land cover classification
From pixel... 
Remote sensing image
From pixel... 
Remote sensing image 
...to information 
Land cover thematic map
Orfeo Toolbox Processing 
http://orfeo-toolbox.org 
Constellation WPS 
http://www.constellation-sdi.org 
mapshup Web 
application 
http://mapshup.info
Orfeo Toolbox Remote sensing image library 
Open Source 
Developped by the French Space Agency 
More than 70 high level processing chains 
orthorectification 
segmentation 
classification 
etc. 
Processing
WPS a 
Web application 
1 
1 - DescribeProcess request for "Classification" 
Classification process 
description 
2 
2 - Set up MMI from process description 
+ 
Image url Well known areas 
3 
3 - Execute an asynchronous "Classification" request 
Land Cover 
4 
4 - Display result retrieved as a WMS layer 
Orfeo Toolbox 
mapshup 
Image
https://vimeo.com/67288677
WPS in a Ground Segments Federation 
OWS10 and GSCB Federated Project Pilot
vs. 
Centralisation Federation
Centralisation
Centralisation 
Data and processes are collocated 
+ Authentication is easy
Centralisation 
Data and processes are collocated 
+ Authentication is easy 
Data governance ? 
Existing infrastructures ? -
Federation
Federation 
+ Data governance
Federation 
+ Data governance 
Authentication (Single Sign On) 
Transfert of data/processes between clouds 
Security 
-
Make things work
Make things work 
Limit as possible data transfert between clouds
Make things work 
Limit as possible data transfert between clouds 
« Bring process to data » vs « Bring data to process » when possible
Make things work 
Limit as possible data transfert between clouds 
« Bring process to data » vs « Bring data to process » when possible 
Processing results should be downloaded only if needed
Make things work 
Limit as possible data transfert between clouds 
« Bring process to data » vs « Bring data to process » when possible 
Processing results should be downloaded only if needed 
Good option is to offer a Web service to visualize/manipulate results
Make things work 
Limit as possible data transfert between clouds 
« Bring process to data » vs « Bring data to process » when possible 
Processing results should be downloaded only if needed 
Good option is to offer a Web service to visualize/manipulate results 
Interoperability layers between clouds
Make things work 
Limit as possible data transfert between clouds 
« Bring process to data » vs « Bring data to process » when possible 
Processing results should be downloaded only if needed 
Good option is to offer a Web service to visualize/manipulate results 
Interoperability layers between clouds 
Authentication, Catalogs search, Virtualization
Make things work 
Limit as possible data transfert between clouds 
« Bring process to data » vs « Bring data to process » when possible 
Processing results should be downloaded only if needed 
Good option is to offer a Web service to visualize/manipulate results 
Interoperability layers between clouds 
Authentication, Catalogs search, Virtualization 
High speed network between clouds
WPS 
A 
WPS 
C 
Data 
B
WPS 
A 
Process with then process Data 
the result with 
WPS 
C 
Data 
B 
B 
WPS 
A 
WPS 
C
OWS-10 OGC Testbed 
Quality assessment and land cover services in a collaborative clouds environment
Note: this work is the result of the CNES/Astrium joint initiative within the 
« Open Mobility » thread - Cloud Computing of the OGC OWS-10 Testbed
Orthorectification of raw image 
! 
Assess quality of the orthorectified image 
in terms of geometrical accuracy 
! 
Compute Land Cover map from 
an orthorectified image 
Features
Client base processing chain workflow 
between multiple clouds 
! 
Collaborative processing without raw data 
acquisition transfert between clouds 
! 
WPS based on demand processing 
! 
Integration of Orfeo Toolbox library within 
Constellation SDI 
Key points
Airbus Defense and Space WPS 
Constellation SDI 
http://www.constellation-sdi.org 
mapshup 
http://mapshup.info 
WPS 
WPS 
Web 
Client 
Orfeo Toolbox 
WMS CSW 
http://orfeo-toolbox.org/otb/
Architecture 
browser, 
everywhere 
Rome, 
Italy 
Toulouse, 
France 
Montpellier, 
France 
WMS 
WPS 
WPS 
Download 
WMS 
WPS 
CSW 
WMS 
Metadata 
+ 
Raw images 
Reference 3D data
Orthorectify 
browser, 
everywhere 
Rome, 
Italy 
Toulouse, 
France 
Montpellier, 
France 
WMS 
WPS 
WPS 
Download 
WMS 
WPS 
CSW 
WMS 
Metadata 
+ 
Raw images 
Reference 3D data 
1 
Search catalog 
Orthorectify raw image stored on a Terradue 
infrastructure using a reference database and 
processing chain located at Airbus Defense&Space 
infrastructure without moving the data
browser, 
everywhere 
2 
Rome, 
Italy 
Toulouse, 
France 
Montpellier, 
France 
WMS 
WPS 
WPS 
Download 
WMS 
WPS 
CSW 
WMS 
Metadata 
+ 
Raw images 
Reference 3D data 
1 
Search catalog 
Ask for 
Orthorectification 
Orthorectify 
Orthorectify raw image stored on a Terradue 
infrastructure using a reference database and 
processing chain located at Airbus Defense&Space 
infrastructure without moving the data
browser, 
everywhere 
2 
Rome, 
Italy 
Toulouse, 
France 
Montpellier, 
France 
WMS 
WPS 
WPS 
Download 
WMS 
WPS 
CSW 
WMS 
Metadata 
+ 
Raw images 
Reference 3D data 
1 
Search catalog 
Ask for 
Orthorectification 
3 
Compute AOIs 
Orthorectify 
Compute RPCs 
Orthorectify raw image stored on a Terradue 
infrastructure using a reference database and 
processing chain located at Airbus Defense&Space 
infrastructure without moving the data
browser, 
everywhere 
2 
Rome, 
Italy 
Toulouse, 
France 
Montpellier, 
France 
WMS 
WPS 
WPS 
Download 
WMS 
WPS 
CSW 
WMS 
3 
Compute AOIs 
Compute RPCs 
Metadata 
+ 
Raw images 
Reference 3D data 
1 
Search catalog 
Ask for 
Orthorectification 
Orthorectify 
Apply RPCs to 
generate orthoimage 4 
Orthorectify raw image stored on a Terradue 
infrastructure using a reference database and 
processing chain located at Airbus Defense&Space 
infrastructure without moving the data
browser, 
everywhere 
2 
Rome, 
Italy 
Toulouse, 
France 
Montpellier, 
France 
WMS 
WPS 
WPS 
Download 
WMS 
WPS 
CSW 
WMS 
3 
Compute AOIs 
Compute RPCs 
Metadata 
+ 
Raw images 
Reference 3D data 
1 
Search catalog 
Ask for 
Orthorectification 
5 
Stream orthoimage 
WMS layer 
Orthorectify 
Apply RPCs to 
generate orthoimage 4 
Orthorectify raw image stored on a Terradue 
infrastructure using a reference database and 
processing chain located at Airbus Defense&Space 
infrastructure without moving the data
browser, 
everywhere 
Rome, 
Italy 
Toulouse, 
France 
Montpellier, 
France 
WMS 
WPS 
WPS 
Download 
WMS 
WPS 
Orthoimage 
CSW 
WMS 
Metadata 
+ 
Raw images 
Reference 3D data 
Assess Quality 
6 
Assess orthoimage quality 
Assess quality of the orthorectified image stored on 
Terradue infrastructure using a reference database 
and processing chain located at Airbus 
Defense&Space infrastructure without moving 
the data
browser, 
everywhere 
Rome, 
Italy 
Toulouse, 
France 
Montpellier, 
France 
WMS 
WPS 
WPS 
Download 
WMS 
WPS 
7 
Orthoimage 
CSW 
WMS 
Metadata 
+ 
Raw images 
Reference 3D data 
Assess Quality 
Compute AOIs 
Compute Errors 
6 
Assess orthoimage quality 
Assess quality of the orthorectified image stored on 
Terradue infrastructure using a reference database 
and processing chain located at Airbus 
Defense&Space infrastructure without moving 
the data
browser, 
everywhere 
8 
Rome, 
Italy 
Toulouse, 
France 
Montpellier, 
France 
WMS 
WPS 
WPS 
Download 
WMS 
WPS 
7 
Orthoimage 
CSW 
WMS 
Metadata 
+ 
Raw images 
Reference 3D data 
Assess Quality 
Stream error shift 
WMS layer 
Compute AOIs 
Compute Errors 
6 
Assess orthoimage quality 
Assess quality of the orthorectified image stored on 
Terradue infrastructure using a reference database 
and processing chain located at Airbus 
Defense&Space infrastructure without moving 
the data
Land Cover 
browser, 
everywhere 
Rome, 
Italy 
Toulouse, 
France 
Compute Land Cover from orthorectified image 
stored on Terradue infrastructure using CNES OTB 
processing executed on Geomatys infrastructure 
Montpellier, 
France 
WMS 
WPS 
WPS 
Download 
WMS 
WPS 
Orthoimage 
Learning features 
CSW 
WMS 
Metadata 
+ 
Raw images 
Reference 3D data 
9 
Compute Land Cover 
from orthoimage 
(stored on cloud)
Land Cover 
browser, 
everywhere 
Rome, 
Italy 
Toulouse, 
France 
Compute Land Cover from orthorectified image 
stored on Terradue infrastructure using CNES OTB 
processing executed on Geomatys infrastructure 
Montpellier, 
France 
WMS 
WPS 
WPS 
Download 
WMS 
WPS 
Orthoimage 
CSW 
WMS 
Metadata 
+ 
Raw images 
Reference 3D data 
Learning features 
9 
Compute Land Cover 
from orthoimage 
(stored on cloud) 
10 
Stream land cover map 
WMS layer
https://vimeo.com/90131217
GSCB Federated Project Pilot 
CNES/DLR/ESA experiment
Architecture 
Federated Project Pilot - GSCB 
CNES 
DLR 
ESA 
Dream 
FedEO 
WPS 
OTB 
OpenSearch 
Landsat 
Dissharm 
Take 5 
SPOT 4 
Landsat 8 
OpenSearch 
TerraSar-X 
Supersite 
WMS 
Search 
Search 
Visualize 
Process 
1 
1 
3 2
https://vimeo.com/98979095
2014.09.04   federated ground segments - toulouse

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2014.09.04 federated ground segments - toulouse

  • 1. On-demand EO Processing Services in a federation of European Ground Segments Jérôme Gasperi Innovation Toulouse, France - 5 septembre 2014
  • 2. Web Processing Service What is WPS ? WPS in a Ground Segments Federation Image processing OWS-10 OGC Testbed GSCB Federated Project Pilot
  • 3. Web Processing Service What is WPS ?
  • 4. WPS is an OGC standard that defines how to publish, describe and execute geospatial processes
  • 5. http Web application WPS P r o c e s s in g a
  • 6. Web Processing Service Image processing - Assisted land cover classification
  • 7. From pixel... Remote sensing image
  • 8. From pixel... Remote sensing image ...to information Land cover thematic map
  • 9. Orfeo Toolbox Processing http://orfeo-toolbox.org Constellation WPS http://www.constellation-sdi.org mapshup Web application http://mapshup.info
  • 10. Orfeo Toolbox Remote sensing image library Open Source Developped by the French Space Agency More than 70 high level processing chains orthorectification segmentation classification etc. Processing
  • 11. WPS a Web application 1 1 - DescribeProcess request for "Classification" Classification process description 2 2 - Set up MMI from process description + Image url Well known areas 3 3 - Execute an asynchronous "Classification" request Land Cover 4 4 - Display result retrieved as a WMS layer Orfeo Toolbox mapshup Image
  • 13. WPS in a Ground Segments Federation OWS10 and GSCB Federated Project Pilot
  • 16. Centralisation Data and processes are collocated + Authentication is easy
  • 17. Centralisation Data and processes are collocated + Authentication is easy Data governance ? Existing infrastructures ? -
  • 19. Federation + Data governance
  • 20. Federation + Data governance Authentication (Single Sign On) Transfert of data/processes between clouds Security -
  • 22. Make things work Limit as possible data transfert between clouds
  • 23. Make things work Limit as possible data transfert between clouds « Bring process to data » vs « Bring data to process » when possible
  • 24. Make things work Limit as possible data transfert between clouds « Bring process to data » vs « Bring data to process » when possible Processing results should be downloaded only if needed
  • 25. Make things work Limit as possible data transfert between clouds « Bring process to data » vs « Bring data to process » when possible Processing results should be downloaded only if needed Good option is to offer a Web service to visualize/manipulate results
  • 26. Make things work Limit as possible data transfert between clouds « Bring process to data » vs « Bring data to process » when possible Processing results should be downloaded only if needed Good option is to offer a Web service to visualize/manipulate results Interoperability layers between clouds
  • 27. Make things work Limit as possible data transfert between clouds « Bring process to data » vs « Bring data to process » when possible Processing results should be downloaded only if needed Good option is to offer a Web service to visualize/manipulate results Interoperability layers between clouds Authentication, Catalogs search, Virtualization
  • 28. Make things work Limit as possible data transfert between clouds « Bring process to data » vs « Bring data to process » when possible Processing results should be downloaded only if needed Good option is to offer a Web service to visualize/manipulate results Interoperability layers between clouds Authentication, Catalogs search, Virtualization High speed network between clouds
  • 29. WPS A WPS C Data B
  • 30. WPS A Process with then process Data the result with WPS C Data B B WPS A WPS C
  • 31. OWS-10 OGC Testbed Quality assessment and land cover services in a collaborative clouds environment
  • 32. Note: this work is the result of the CNES/Astrium joint initiative within the « Open Mobility » thread - Cloud Computing of the OGC OWS-10 Testbed
  • 33. Orthorectification of raw image ! Assess quality of the orthorectified image in terms of geometrical accuracy ! Compute Land Cover map from an orthorectified image Features
  • 34. Client base processing chain workflow between multiple clouds ! Collaborative processing without raw data acquisition transfert between clouds ! WPS based on demand processing ! Integration of Orfeo Toolbox library within Constellation SDI Key points
  • 35. Airbus Defense and Space WPS Constellation SDI http://www.constellation-sdi.org mapshup http://mapshup.info WPS WPS Web Client Orfeo Toolbox WMS CSW http://orfeo-toolbox.org/otb/
  • 36. Architecture browser, everywhere Rome, Italy Toulouse, France Montpellier, France WMS WPS WPS Download WMS WPS CSW WMS Metadata + Raw images Reference 3D data
  • 37. Orthorectify browser, everywhere Rome, Italy Toulouse, France Montpellier, France WMS WPS WPS Download WMS WPS CSW WMS Metadata + Raw images Reference 3D data 1 Search catalog Orthorectify raw image stored on a Terradue infrastructure using a reference database and processing chain located at Airbus Defense&Space infrastructure without moving the data
  • 38. browser, everywhere 2 Rome, Italy Toulouse, France Montpellier, France WMS WPS WPS Download WMS WPS CSW WMS Metadata + Raw images Reference 3D data 1 Search catalog Ask for Orthorectification Orthorectify Orthorectify raw image stored on a Terradue infrastructure using a reference database and processing chain located at Airbus Defense&Space infrastructure without moving the data
  • 39. browser, everywhere 2 Rome, Italy Toulouse, France Montpellier, France WMS WPS WPS Download WMS WPS CSW WMS Metadata + Raw images Reference 3D data 1 Search catalog Ask for Orthorectification 3 Compute AOIs Orthorectify Compute RPCs Orthorectify raw image stored on a Terradue infrastructure using a reference database and processing chain located at Airbus Defense&Space infrastructure without moving the data
  • 40. browser, everywhere 2 Rome, Italy Toulouse, France Montpellier, France WMS WPS WPS Download WMS WPS CSW WMS 3 Compute AOIs Compute RPCs Metadata + Raw images Reference 3D data 1 Search catalog Ask for Orthorectification Orthorectify Apply RPCs to generate orthoimage 4 Orthorectify raw image stored on a Terradue infrastructure using a reference database and processing chain located at Airbus Defense&Space infrastructure without moving the data
  • 41. browser, everywhere 2 Rome, Italy Toulouse, France Montpellier, France WMS WPS WPS Download WMS WPS CSW WMS 3 Compute AOIs Compute RPCs Metadata + Raw images Reference 3D data 1 Search catalog Ask for Orthorectification 5 Stream orthoimage WMS layer Orthorectify Apply RPCs to generate orthoimage 4 Orthorectify raw image stored on a Terradue infrastructure using a reference database and processing chain located at Airbus Defense&Space infrastructure without moving the data
  • 42. browser, everywhere Rome, Italy Toulouse, France Montpellier, France WMS WPS WPS Download WMS WPS Orthoimage CSW WMS Metadata + Raw images Reference 3D data Assess Quality 6 Assess orthoimage quality Assess quality of the orthorectified image stored on Terradue infrastructure using a reference database and processing chain located at Airbus Defense&Space infrastructure without moving the data
  • 43. browser, everywhere Rome, Italy Toulouse, France Montpellier, France WMS WPS WPS Download WMS WPS 7 Orthoimage CSW WMS Metadata + Raw images Reference 3D data Assess Quality Compute AOIs Compute Errors 6 Assess orthoimage quality Assess quality of the orthorectified image stored on Terradue infrastructure using a reference database and processing chain located at Airbus Defense&Space infrastructure without moving the data
  • 44. browser, everywhere 8 Rome, Italy Toulouse, France Montpellier, France WMS WPS WPS Download WMS WPS 7 Orthoimage CSW WMS Metadata + Raw images Reference 3D data Assess Quality Stream error shift WMS layer Compute AOIs Compute Errors 6 Assess orthoimage quality Assess quality of the orthorectified image stored on Terradue infrastructure using a reference database and processing chain located at Airbus Defense&Space infrastructure without moving the data
  • 45. Land Cover browser, everywhere Rome, Italy Toulouse, France Compute Land Cover from orthorectified image stored on Terradue infrastructure using CNES OTB processing executed on Geomatys infrastructure Montpellier, France WMS WPS WPS Download WMS WPS Orthoimage Learning features CSW WMS Metadata + Raw images Reference 3D data 9 Compute Land Cover from orthoimage (stored on cloud)
  • 46. Land Cover browser, everywhere Rome, Italy Toulouse, France Compute Land Cover from orthorectified image stored on Terradue infrastructure using CNES OTB processing executed on Geomatys infrastructure Montpellier, France WMS WPS WPS Download WMS WPS Orthoimage CSW WMS Metadata + Raw images Reference 3D data Learning features 9 Compute Land Cover from orthoimage (stored on cloud) 10 Stream land cover map WMS layer
  • 48. GSCB Federated Project Pilot CNES/DLR/ESA experiment
  • 49. Architecture Federated Project Pilot - GSCB CNES DLR ESA Dream FedEO WPS OTB OpenSearch Landsat Dissharm Take 5 SPOT 4 Landsat 8 OpenSearch TerraSar-X Supersite WMS Search Search Visualize Process 1 1 3 2