Auto Scene/Cut Detect (post-capture)

I am looking for a way to take an already edited and encoded videostream and have final cut pro analyze the video and place a marker every where it detects a cut.

I am not sure if this is possible. I did read of a application that did something like this in after effects by duplicating the track, overlaying it, and shifting it by 1 frame, it would then do some sort of analysis to detect if the overall pixel data changes between the tracks at any point and places a marker there.

Any body have any ideas for Final Cut?

thanks,

ryan