9.4. Synthetic image generation service 9.5. Intelligence data extraction services
9.6. Image registration services 10. Support metadata access services:
10.1. Image geometry model metadata access service 10.2. Spatial reference system SRS metadata access service
10.3. Coordinate transformation metadata access service 10.4. Image format metadata access service
10.5. Values of pixels metadata access service 10.6. Service capabilities metadata access service
10.7. Service properties or strategies metadata access service 10.8. Image geometry model transformation services
10.8.1. Fit approximate image geometry model to existing image geometry model 10.8.2. Convert image geometry model to different, mathematically equivalent model
Editor’s Note: In the service categorization above, the top level items numbered 1 through 10 are the current categorization of image exploitation services to be used for further detailing. That is,
OGC abstract specifications will be prepared for each listed service category. The first three listed categories are the highest priority for further detailing, in the listed order.
The Coordinate Transformation WG is already developing abstract specifications for the first listed category “Ground Coordinate Transformation Services”. The Image Exploitation Services SIG
plans to develop abstract specifications for the second listed category “Image Coordinate Transformation Services”. The “Image Modification Services” category partially overlaps the
scope of the Simple Coverages RFP, and further development of abstract specifications for that category may be delayed until definitive responses to that RFP are received.
2.2.1. Notes on the image exploitation service taxonomy
Some notes on the above taxonomy and categorization: 1. This taxonomy favors similarity of the fundamental interfaces needed by different services
instead of similarities of services functions or use. Similarity of interfaces is more appropriate for development of multiple standard APIs to image exploitation services.
2. This taxonomy includes Automated Image Understanding Services item 7 and Synthetic Image Generation Service item 9.4, although these services are considered largely beyond the scope of
this SIG. Many other services listed above under Composite Image Exploitation Services item 9 are also largely beyond the scope of this SIG. These services are listed in this taxonomy in order to
show how these higher level services are related to the image exploitation services within the scope of this SIG.
3. This taxonomy includes image coverage access services, although Coverages are a major concern of the Coverage Working Group. These coverage services are listed toward showing how
this lower level service is related to and used by the image exploitation services within the scope of IES-SIG.
4. This taxonomy intends to include certain low level services that are used by higher level image exploitation services, although these lower level services may be partially the same for features
andor collections of features with geometry. For example, Ground Coordinate Transformation Services item 1 are included.
The Open GIS Abstract Specification Page 25
Volume 15: Image Exploitation Services 00-115 corrigendum
5. This taxonomy intends to exclude high level services that are largely the same for features andor collections of features with geometry. For example, geodata discovery and access services Catalog
services are not included. 6. Most listed image exploitation services are also applicable to other grid coverage types, and
some listed services are also applicable to non-grid coverage types. However, other grid and non- grid coverage types will need additional services, not included here.
7. Some of the listed services will have distinct sub-items not all listed using, for example, a only one image or coverage and b multiple images or coverages.
2.3. Uses of Other Services
