Origin of correcting algorithm  :

Dr. Alexander Uhl invented a method that he used to filter the moving average and to check for signals. Originally it was used at simple moving average

This indicator :

This indicator is using the modified "correcting" method. Instead of using standard deviation for calculation, it is using EMA deviation (originally published here : EMA deviation) and is applied to super smoother (originally published here : Super smoother)

Usage :

You can use the change of color as signals