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JES Deinterlace
A friend of mine told about this freeware tool. It’s amazing and I can’t believe it’s hardly discussed here. Had I known about it sooner, it would have saved me a lot of money in Teranex fees.
Basically, it lets you do an inverse telecine with footage that has broken cadence. Somehow it can detect broken cadence and deinterlace any film-based video into 24p or 23.98p. It’s 99% flawless – you still get an occasional frame with mixed fields but very rarely. But it gives you the option to make a Quicktime reference file for every cadence break, thus helping you identify any bad frames.
It’s also fast. Very fast. Like 10x real-time. Probably faster than that even. I did P-JPEG to P-JPEG and it blasted through it. It obviously didn’t re-compress anything else it would have taken much longer.
And once you get a clean progressive-scan Quicktime, you can get a perfecly clean upconversion to 1080 or 720 using only Final Cut’ Motion tab and rendring it (or use the Blackmagic/Kona upconverter). Even if you are mastering to standard def, it’s best to make a master with the cadence intact. That way a 24p DVD can easily be authored from it.
It seems to me a lot of people think Final Cut can’t do good upconversions because of the scaling engine. Not true. Final Cut’s scaling engine is actually very good. The problem isn’t the scaling, it’s the deinterlacing. Even when going from 480i to 1080i, the video must be deinterlaced first as part of the upconversion process. Cinema Tools can do this as can the Kona and Blackmagic’s inverse telecine capture. But this only works if there is clean cadence and you identify the A frame. Otherwise you get horrendous jaggies. But if you use JES first, you won’t have that problem.
Teranex products have their place of course and I’d never trivialize its importance for certain workflows. One example is if you need to convert the true framerate from 30 to 24. FCP doesn’t do that so well. Also if you need to convert old analog video you’ll get much, much better results using a Xantus. Not to mention it’s ability to remove noise. But for digital video sources where the frames are locked into place, you really don’t need it thanks to JES.
Sean
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1 Reply
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Based on your post, I downloaded this product. I’ve only used it to remove the “jaggies” from my HDV compressed footage and it works like a charm !!!!! I’m very impressed.
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