Offline Products

Offline products are usually available to the customer within days after receipt of raw imagery and GIS input data. These products are based on algorithms and processes developed by our founder and President, Ernie Carroll. As such, we refer these technologies as "Ernie-ware".

• Rapid -- 23-30 m resolution, 6-10 classes -- This process produces good thematic accuracy land cover and can be used to process, at high speed, large volumes of SPOT, LandSat or other medium resolution, multispectral images into thematic maps. Because of thematic and geospatial control issues, this process is currently only available for imagery of rural areas within the United States.

• High Accuracy -- 20-30 m resolution, 10-16 classes -- This process produces high thematic accuracy land cover from SPOT, LandSat or other medium-spatial-resolution, large area, multispectral scenes, by making use of samples of time-coincident high-spatial-resolution, panchromatic imagery in the processing.

• Radar Land Use/Land Cover -- 8.1 to 30 m resolution, 5-10 classes -- This medium to high thematic accuracy process produces, from available radar data to include AIRSAR (airborne radar system operated by Jet Propulsion Laboratory and NASA) and RadarSat (spaceborne radar system operated by the Canadian Space Agency), land use and land cover data previously believed impossible to obtain from radar. The process, which has been optimized for urban and suburban environments, is of particular utility for areas of the world with high cloud cover.

• One Image City Digital Elevation Models -- to 3 m post-spacings -- This high spatial accuracy process permits the generation of city DEMs from a single 1 m spatial resolution satellite image. Thus reducing imagery collection costs by 50 percent. Since, as with any imagery collected for DEM generation, collection geometry is critical, it is critical that GDS be involved in the tasking of the data to be used in this process.

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