If your project requires Ground Control Points, look no further. CompassData provides complete global coverage, with more than 40,000 photo identifiable Ground Control Points available right now, and more GCPs being collected all the time with our GNSS GIS products.

Orthoimagery or orthorectified imagery is aerial or satellite imagery which has been geometrically corrected. Geometric correction, or orthorectification, is necessary to adjust for topographic relief, camera tilt and lens distortion.

CompassData generates high quality terrain models in a variety of formats and from a variety of sources. Our GNSS GIS products like DEMs may be used for orthorectification of satellite imagery, volumetric calculations and relief map generation.

CompassAA is a simple, fast, and complete workflow solution to verify the accuracy and quality of orthophotos. This software’s consistent methods and readily understood capabilities benefit the planner, producer, customer, or end user of orthophotos.

CompassTA automatically tests and verifies the accuracy of elevation data products. CompassTA lets you test LiDAR point cloud data, DEM data products, and other raster elevation data with our GNSS GIS products.

Our GNSS GIS products with GeoExpress® can compress technology, manage the data can become less problematic. GeoExpress® is the industry-standard geospatial compression software package for creating, viewing and publishing geospatial imagery.