Removing background from a video - based on comparison to an image of the background

vvvv beta question
1

Hi

is this possible?
i started to dig around the web, but didnt find anything specific yet, except http://www2.ulg.ac.be/telecom/publi/publications/barnich/Barnich2011ViBe/index.html , which i cannot access.

thanks!

krisztian

2

http://legacy.vvvv.org/tiki-index.php?page=User+Shaders
there is two examples here