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What is Total Propagated Uncertainty

Total Propagated Uncertainty(TPU) is a method to propagate measurement errors through an equation to a new value.

So What?

Using TPU for the photogrammetric equations gives you confidence in your final orthophoto or timestack results. Instead of saying, the sandbar position is at 100m Cross-shore, you can say, the sandbar position is at 100m +/- 5m. Instead of saying, the wave speed is 5m/s, you can say the speed is 5m/s +/- 0.3 m/s... which you could then propagate to depth.

Photogrammetry Equations/Nomenclature Used

*There are many synonyms for the same photogrammetric processes, and there are also a handful of ways to formulate the photogrammetric equations. The form of the equations used in this code are:

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Running the code

example runs of example scripts