February 27, 2006
OGC Adopts GMLJP2 Standard
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Message from the Editor -
Welcome to GISWeekly! In a
press release this week, LizardTech, a division of Celartem, Inc., announced that the OGC has officially adopted the GMLJP2 standard proposed by LizardTech and Galdos Systems and a consortium of leading aerospace and geospatial technology companies. Jon Skiffington, product manager for LizardTech's GeoExpress, talks about the new non-proprietary standard for delivering and displaying large geospatial imagery.
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Susan Smith, Managing Editor
OGC Adopts GMLJP2 Standard
By Susan Smith
In apress release this week, LizardTech, a division of Celartem, Inc., announced that the OGC has officially adopted the GMLJP2 standard proposed by LizardTech and Galdos Systems and a consortium of leading aerospace and geospatial technology companies. GML is a Web-authoring language for delivering and displaying geographic data over the Internet, based on eXtensible Markup Language (XML). GML will be used to define rich geospatial metadata within a JPEG 2000 (JP2) file. Just last week, Galdos Systems, the creators of GML, won a contract from Oak Ridge National Laboratory to
develop open-standards based infrastructures. The GML standard is significant because it is intended to drive cross-platform interoperability by ensuring vendor independence from formats and rapidly displaying large geospatial images over the internet.
Jon Skiffington, product manager for GeoExpress, answered some questions for us about the announcement and what this means to geospatial users:
year LizardTech announced that they were working to extend Oracle Spatial 10g GeoRaster architecture to integrate native MrSID technology inside Oracle. This was said to be a precursor to bringing LizardTech closer toward providing JPEG2000 support for Oracle Spatial 10g in the future. Does the GMLJP2 standard adoption further that goal and if so, how, specifically?
JS: We feel that this will accelerate the adoption of JPEG 2000 for geospatial raster imaging, allowing increased interoperability between systems. While Oracle Spatial can not make use of GMLJP2 natively, LizardTech will work to make sure that GML metadata in JPEG 2000 files is preserved in the Oracle database.
2) Will the products created using the GMLJP2 standard be dependent in any way on Oracle?
JS: While we anticipate that JPEG 2000 imagery will be stored within Oracle, GMLJP2 is a non-proprietary OGC standard. This means that the number of applications that will support GMLJP2 is limited only by the number of organizations that choose to build support for it.
3) What is the difference between GeoExpress 6 "supporting JP2" and what the GMLJP2 standard allows?
time, orbit track), and image quality information such as cloud cover and air quality at the time of image capture.
The OpenGIS(R) GML in JPEG 2000 for Geographic Imagery (GMLJP2) Implementation Specification. It is available for
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