HMA-T
Description
|
HMA-T |
| EO Profile of GML and HMA Product Catalog for VITO CVB |
| Keywords |
HMA-T, OGC, interoperability, catalogue, EO Profile of GML |
Project Objectives
In a first phase, and in accordance with the needs for OGC compliance (interoperability) established in the predecessor “OGC Compliance for CVB” internal project, the EO Product Metadata standardised within the “GML 3.1.1 Application schema for Earth Observation products” specification (OGC06-080 or “EO Profile of GML”) will be applied to a set of representative VITO EO Products.
This study work will allow testing of this metadata specification on a range of products (raw EO Products, synthesis products, derived products and products from airborne sensors) and may lead to the creation of specific extensions (vendor specific parameters) and/or derived GML application schemas. In addition, it will provide VITO with the required experience to allow future adoption of this specification as common EO Product Metadata format.
Once this study is completed, one of the VITO systems will be selected for the implementation of an HMA Product Catalog. This Catalog prototype will be set up using the ERDAS EO Proxy framework, it will be implemented by and hosted at GIM and filled with a representative set of metadata.
This is in line with the roadmap for interoperability and OGC compliance, that foresees a metadata catalog, using similar ERDAS software and following the same HMA metadata specification.
Methodology
First, existing metadata for a variety of VITO CVB products will be mapped to the “EO Profile of GML” metadata specification (OGC06-080). As a result of this study, the feasibility of adopting the specification is checked and -if needed- VITO-specific extensions (“application profiles”) are identified. These can be fed back to the organizations involved in the development of the standard. Once the metadata specification is then suitable for VITO CVB product metadata, a pilot catalog service will be implemented using ERDAS EO Proxy Framework software, that makes an existing metadata stores HMA-compliant through metadata “translation”.
This pilot catalog - maintained until 1 year after project completion at GIM - will not only prove the feasibility and use of such a service, it can also be a pilot for the implementation of a HMA product metadata catalog, combined with Web Mapping & Web Coverage Service, using similar ERDAS software, as foreseen in the OGC compliance roadmap (output of the “OGC Compliance for CVB” project).
(Expected) Results
- testing of EO Profile of GML on derived, synthesis and airborne products
- mapping of all VITO EO Product metadata on the EO Profile of GML standard
- potentially the creation of extensions to the standard or application schema(s) derived from the standard to allow the description of these VITO CVB products
- deployment of an HMA EO Product catalogue reference implementation.
Partners
- Geographic Information Management (GIM) NV (Belgium)
- ERDAS (formely Ionicsoft) (Belgium)
Illustration

Screenshot from catalogue reference implementation
Contact:
Erwin Goor
Tel. + 32 14 33 67 25
Fax + 32 14 32 27 95
Mobile + 32 493 51 42 74
Send a message to Erwin Goor
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