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Methods for the specification and validation of geolocation accuracy and predicted accuracy
Author(s): John Dolloff; Jacqueline Carr
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Paper Abstract

The specification of geolocation accuracy requirements and their validation is essential for the proper performance of a Geolocation System and for trust in resultant three dimensional (3d) geolocations. This is also true for predicted accuracy requirements and their validation for a Geolocation System, which assumes that each geolocation produced (extracted) by the system is accompanied by an error covariance matrix that characterizes its specific predicted accuracy. The extracted geolocation and its error covariance matrix are standard outputs of (near) optimal estimators, either associated (internally) with the Geolocation System itself, or with a “downstream” application that inputs a subset of Geolocation System output, such as sensor data/metadata: for example, a set of images and corresponding metadata of the imaging sensor’s pose and its predicted accuracy. This output allows for subsequent (near) optimal extraction of geolocations and associated error covariance matrices based on the application’s measurements of pixel locations in the images corresponding to objects of interest. This paper presents recommended methods and detailed equations for the specification and validation of both accuracy and predicted accuracy requirements for a general Geolocation System. The specification/validation of accuracy requirements are independent from the specification/validation of predicted accuracy requirements. The methods presented in this paper are theoretically rigorous yet practical.

Paper Details

Date Published: 1 May 2017
PDF: 20 pages
Proc. SPIE 10199, Geospatial Informatics, Fusion, and Motion Video Analytics VII, 1019908 (1 May 2017); doi: 10.1117/12.2263855
Show Author Affiliations
John Dolloff, National Geospatial-Intelligence Agency (United States)
Jacqueline Carr, National Geospatial-Intelligence Agency (United States)


Published in SPIE Proceedings Vol. 10199:
Geospatial Informatics, Fusion, and Motion Video Analytics VII
Kannappan Palaniappan; Peter J. Doucette; Gunasekaran Seetharaman; Anthony Stefanidis, Editor(s)

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