Understanding camera prior accuracy values

Development Asset Creation
1

I’m specifying prior camera poses with a flight log.  In the Alignment Settings, I’m able to enter various ‘accuracy’ values, for example ‘Position X accuracy,’ ‘Yaw accuracy,’ etc.  

Does anyone know what ‘accuracy’ means in this context?  Are these 1sigma values?  3sigma values?  Some sort of hard truncation bound, a la truncated least-squares optimization?  

Side note: if these values represent uncertainty bounds, then I would recommend calling them ‘Precision,’ for example ‘Position precision X (1sigma)’ would be accurate and unambiguous. 

Thanks!

2

Hi thitch2,

the accuracy there is basically the range of ± the accuracy value.

Also, thank you for your ideas.

3

Hi ,

Ok, I will treat this value as a truncation bound in my work (± range contains 100% of statistical observations).  Thank you.