A Question about "rmse_sw"

[Hs-Cheng]

Hi,

Thank you for the great python package. I have several questions related to the function rmse_sw.

1. I would like to ask what is the main difference between the functions rmse and rmse_sw? Can rmse_sw deal with a shifted object in photos without substantially increase the computed RMSE?
2. I have read your code. Why do we need the uniform_filter when doing rmse_sw? What is the purpose of the uniform_filter?
3. Could you provide some related paper or other work about "sliding window RMSE"? I had a hard time trying to search for it online.

Thank you very much for your help.