Re: Aperture size to optimise SNR

Posted by SCO on May 08, 2023; 1:00am
URL: http://astroimagej.170.s1.nabble.com/Aperture-size-to-optimise-SNR-tp2228p2231.html

BIC is the Bayesian information criterion.  It prevents over-fitting. The process is described here: https://en.wikipedia.org/wiki/Bayesian_information_criterion .  In practice, I find that the BIC starts to increase when the aperture becomes completely inappropriate.  This happens even though the SNR might keep improving.

Ed