Desktop software that checks satellite and aerial orthophoto accuracy against surveyed checkpoints, for imagery producers and buyers.
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CompassAA is CompassData's desktop software for verifying the horizontal positional accuracy and quality of orthophotos, including satellite and aerial imagery. Imagery producers, buyers and users need documented proof that an orthophoto meets a contract or regulatory accuracy specification before it is delivered or relied on.
The user loads geo-referenced images and a .csv table of surveyed ground checkpoints in the same projected coordinate system, then locates each photo-identifiable checkpoint in the imagery. CompassAA compares the image-derived coordinates with the surveyed coordinates and computes RMSE, CE90, CE95 and NSSDA error statistics, with a circular error plot, a vector offset plot and values over a user-set threshold highlighted. It produces standardised reports, which can include photos of each point, against the NSSDA, ASPRS, NMAS and MIL standards; reviewed checkpoints can be exported as .csv or .shp files.
CompassAA runs as standalone software on Microsoft Windows and is licensed by subscription, with a 14-day free trial. It is based on the Accuracy Analyst tool that CompassData bought from Spatial Information Solutions in 2014. CompassData holds FAA DO-200A approval to use its ground control points and this tool to verify the accuracy of satellite or aerial imagery for aviation mapping products, and uses CompassAA to verify its satellite Airport Imagery Archive. A companion tool, CompassTA, covers elevation data.
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Space Capability
Processing
Data Fusion & Analytics
Combines data sources and applies analytics to uncover patterns.
Delivered as
Alerting & Decision Support
Geographic Scope
CompassData, Inc.
CompassData is a Colorado geospatial data company that surveys and sells ground control points, including a commercial archive of more than 85,000 photo-identifiable points. It also acquires and processes satellite, aerial, drone, LiDAR and mobile-mapping data, and licenses the CompassAA and CompassTA accuracy-verification software. Its services are ISO 9001:2015 certified and its accuracy workflows are FAA-certified.
1994
Founded
11-50
Team size
United States of America
Country
Automates notifications and tools to highlight key insights.
