ORFEO Preparatory Programme Object database development

ORFEO Preparatory Programme
Object database development using VHR images
ORFEO - CNES Toulouse
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Objective
Development of a predefined object catalogue
Catalogue can be a support
for algorithmic tests of extraction information tools
for the validation of these tools by thematic experts
Catalogue interesting different themes considered in Orfeo Preparatory
Programme
Sea & Coastal areas
Hydrology
Risk & Humanitarian aid
Forest
Geology & Geophysics
Agriculture
Cartography & town and
country planning
Information sources
ORFEO - CNES Toulouse
QuickBird images used as basic information in Orfeo thematic studies
Reports and presentations prepared by the thematic groups
Thematic studies reports
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Development process
Development of the list of objects of interest
Drafting of a first list using reports and presentations of GT
(objects related to specific themes)
Addition of generic objects showing a multi-thematic interest
Validation by CNES and GT experts
Database specification
Content
Structure
Format
Test on 2 sites
Object identification by photo-interpretation
Automated extraction of the associated « imagettes »
Validation of the structure and format by CNES
Production of the whole database
Object identification by photo-interpretation
Validation of these objects and possible enhancement by the GT team leaders
ORFEO - CNES Toulouse
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Database specifications
Study areas
Arles (2 images)
Genève
Boumerdès (3 images)
Saint-Gilles (2 images)
Boigneville
Massif des Maures
Calanques de Marseille
Peyrat le Château
Cannes
Salon de Provence (2 images)
Cévennes (2 images)
Villamblain (2 images)
Durance (3 images)
Yard
ORFEO - CNES Toulouse
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Database specifications
Nomenclature
4 level hierarchy (similar to Corine Land Cover)
from the broadest meaning to the most accurate one
Example :
Level 1 : Sealed areas
Level 2 : Sport facilities
Level 3 : Swimming-pool
Level 4 : Collective swimming-pool
from the largest object to the smallest one
Example :
ORFEO - CNES Toulouse
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Level 1 : Road and rail infrastructure
Level 2 : Airport
Level 3 : Airport terminal
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Database specifications
Content
QuickBird images
Image description files
date
number of bands
location
acquisition conditions
size
number of identified objects per level
Image extracts corresponding to identified objects
Image extract description files
input image
position
input area
dimensions
object type
Format
Images : BSQ
Image extracts : 4 band TIFF
Description files : text
ORFEO - CNES Toulouse
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Database specifications
Structure by test site
(XXXX : test site acronym )
(A1 : level 1 object)
(A11 : level 2 object)
(A111 : level 3 object)
(A1111 : level 4 object)
ORFEO
XXXX
XXXX_AAAAMMJJJ
XXXX_AAAAMMJJJ
XXXX_A1
XXXX_objects
XXXX_A1
XXXX_image
XXXX_B1
XXXX_C1
XXXX_D1
……
XXXX_A11
XXXX_A12
XXXX_A13
XXXX_A1111
XXXX_A112
XXXX_A1112
XXXX_A113
XXXX_A1113
XXXX_A114
XXXX_A1.tif
XXXX.txt
XXXX_A14
……
XXXX_A111
XXXX.bsq
XXXX_A1.txt
……
XXXX_A1114
……
ORFEO - CNES Toulouse
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Some statistics about the data base
Number of objects per level
ORFEO - CNES Toulouse
Level
Number of objects
1
285
2
1 352
3
1 674
4
622
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Some statistics about the data base
Number of objects per test site
ORFEO - CNES Toulouse
Study area
Number of object
Study area
Number of object
Arles nord
150
Durance sud
195
Arles sud
205
Genève
355
Boumerdes 1
89
Massif des maures
300
Boumerdes 2
110
Peyrat le Château
105
Boumerdes 3
115
Salon nord
173
Boigneville
170
Salon sud
203
Calanques
160
Saint-Gilles 1
186
Cannes
250
Saint-Gilles 2
192
Cevennes 1
77
Villamblain 1
120
Cevennes 2
133
Villamblain 2
120
Durance nord
174
Yard
210
Durance centre
170
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Examples
Arles Nord test site
Dense urban area
(A0102)
Sealed areas
(A01)
ORFEO - CNES Toulouse
Industrial area (A0104)
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Examples
Cannes test site
Runway
(poste B010101)
Asphalt runway
(poste B01010101)
Airport terminal
(poste B010102)
Airpot (Poste B0101)
ORFEO - CNES Toulouse
Plane
(poste B010105)
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