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The Accuracy Triangle- The Photogrammetric Triad

Author: Lewis Graham, December 11, 2017

We get a lot of questions regarding accuracy in drone mapping projects.  These questions range from ground control layout suggestions to the necessity of camera calibration.  Sometimes it is useful to step back a bit and take a wholistic view of the elements that impact photogrammetric accuracy.  The information in this article is meant to be a thought exercise, not a mathematically precise discussion, of the elements that affect photogrammetric accuracy.

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