[PD] Gem somewhat more adaptive background subtraction?

[Peter P.]

Hi list,

just wondering if anyone has looked into a way to subtract a background
in Gem pixes using a hybrid approach between frame difference
[pix_movement] and difference to a static snapshot [pix_background]. I
want to be able to detect object in front of a background also during
slow light condition changes or unsupervised operation in say a gallery
context.
I can remember that EyesWeb had an adaptive background subtraction, that
did possibly time-average a series of images to derive the background
snapshot. Has anyone done anything more fancy in Gem than the two
wonderful objects above offer?

thanks for all ideas!
Peter