Deinterlacing the simpsons: framerate conversion

The following is a sequence of fields from the 625/50 (PAL) release of the first season of The Simpsons on DVD.

The following are the raw fields, not frames, from the DVD. Clearly we are seeing the result of some framerate conversion, and I think it's pretty crazy. Every n fields (I haven't determined n yet) we see a field which is just a half/half blend of the two adjacent fields. The result is a nasty blurry frame. Ugh!

Not only is it ugly, but for someone trying to deinterlace, this is going to make any algorithm suck. I'll post results up soon of what artifacts this leads to when you look closely.

Field parityImage with link to full resolution png


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