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happycube

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Join date
9-Apr-2013
Last activity
22-Oct-2015
Posts
62

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Post
#764542
Topic
Star Wars GOUT in HD using super resolution algorithm (* unfinished project *)
Time

Danfun128 said:

Question about the super resolution algorithm, does it require that the source originally came from something sufficiently high resolution, or can it work for things like home movies that were filmed directly on vhs tape?

I dunno.  It would have to be time base corrected to even have a chance, I think.

Post
#764473
Topic
Star Wars GOUT in HD using super resolution algorithm (* unfinished project *)
Time

_,,,^..^,,,_ said:

Yep! Also, consider the various PAL versions... they are good, but because PAL players are not high-end, your invention could squeeze a lot more quality from them!

I'm in the US so PAL isn't really available to me, but I do have some good PAL RF samples and every so often I make some progress on PAL stuff.  I think I'll look at it more this next week(end).

I'll probably look at http://mentat.za.net/supreme/ this weekend, which is BSD-licensed.  There are some single-frame and neural network techniques that sound interesting as well.

I was aware of this, but not able to use it... if this technique could mantain the promises as seen in the pictures, it could be the real winning one!

 Perhaps... I pretty much only use Linux, so can any of the scripts you or Dre use be ported to Vapoursynth?

Post
#764454
Topic
Star Wars GOUT in HD using super resolution algorithm (* unfinished project *)
Time

_,,,^..^,,,_ said:

Think to this technique used with your laserdisc capture workflow...

Oh I have been... :)  (If this can make the GOUT look this nice, imagine how JSC might look!)

I'll probably look at http://mentat.za.net/supreme/ this weekend, which is BSD-licensed.  There are some single-frame and neural network techniques that sound interesting as well.

Post
#742219
Topic
Auto IVTC of CAV LDs based on vertical interval data?
Time

CLV disks don't have white flags - only the LD-V8000 even supported them on CLV, so there wasn't a point to putting it on any movie disks.  I've had good luck so far using ffmpeg's pulldown detection, which supports regular deinterlacing as a fallback.

IIRC they were planning to use the time compressed Star Wars master for the CAV version but they couldn't get the white flags right on it.  So the cadence is probably all wonky anyway.  The JSC is also known for being off, sadly.

The VBI data itself is pretty easy to work with - I have basic but imperfect sample code for the frame #s, and recognizing the white flag is trivial... getting it into a regular workflow is the problem.

Post
#690292
Topic
Star Wars Laserdisc Preservations. See 1st Post for Updates.
Time

On CAV laserdiscs, there is a "white flag" on lines 11 and 274 (or 22 and 23?) that indicate the first field of a new frame.  Also, the frame # is put in the first field.  MAME has some good decoding code for that.

So if you can get VBI data, it would be possible to automatically construct an avisynth pulldown script.

Unfortunately, the white flag data isn't on CLV disks, since the LD-V8000 was the only player made that could process them.  In fact, per blamld the speedup process used didn't tie in with white flag creation - Fox's original plan was to do a 4-sided time-compressed CAV disk!