Interesting project, but if the goal is to preserve the original format, you really shouldn’t be deinterlacing at all. Also, removing dirt originating from the cels, removing telecine wobble, and cel edges, isn’t preservation, but processing.
I guess an ideal preservation would be to reasseble the episodes from the 35mm neg which would get rid of both wobble and cel edges, but as this would be largely impossible. Deinterlacing and IVTCing gets us one step closer to the cells as they appear on the negative (99% will be original progressive frames rather than interpolated frames). You’re right about cel dirt though. But with every project like this you have to draw a line somewhere.
Frank Sintelle said:
I think those artefacts occur when a scene is time-stretched in post production. I’m not 100% sure Klasky Csupo would be to blame.
Thats a good guess, but its far too consistent to be a timestretch. For one episode, Dead putters society, these artifacts appear halfway into the first act and are on almost every single shot till the end. Its consistent enough to be part of the workflow. Introduced somewhere along the chain from telecine to post.