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Old May 18th, 2009, 03:42 AM   #1
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What deinterlace technique is used by Neoscene

iMovie 09 requires progressive video in order to use all of its functions, yet Sony and Panasonic AVCHD camcorders shoot 1080i60. That opens three options:

1) deinterlace 1080i60 to 1080p30

2) deinterlace 1080i60 to 1080p60

3) standards convert 1080i60 to 720p60

4) standards convert 1080i60 to 540p60


Questions:

1) what method does neoscene use to deinterlace: Line-double, Frame-blend, Adaptive, or Decombing? Is it any better than the standard QT Deinterlace?

2) Is #2 possible with neoscene. (It combines adjacent fields across frame-boundaries as is done in flat-penal HDTVs.)

3) How about #3 or #4? What type of down-scaling is used by neoscene?
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Old May 18th, 2009, 12:35 PM   #2
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This may help you, until you get a more-detailed reply:

http://www.dvinfo.net/conf/cineform-...interlace.html
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Old May 18th, 2009, 07:44 PM   #3
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"We do not throw any a fields, we are better than regular field blending, but not a just as a motion tracking deinterlacer. If you shoot with a 50Hz shutter (or 60Hz for NTSC) the results are quite nice and preserve a good resolution.
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My guess David is saying, "We do not throw AWAY any fields..." WHICH MEANS they don't use Line-doubling (BOB).


"... we are better than regular field blending," DEPENDS ON WHAT YOU CARE ABOUT field-blending adds blur which actually helps cover the fact 60Hz video becomes 30Hz. But, is does hurt resolution.

"... but not AS GOOD as a motion tracking deinterlacer."

OK -- that leaves WEAVE and DECOMB. But, Weave is ruled-out because he says they don't use Adaptive.

So is it Decomb -- which blends only edges if there are differences in fields? Of course, areas within objects are a weave of both fields so moving object detail is lost, which is OK.

What I don't get is why David, who is not shy about tek talk, doesn't say what IS USED? David?
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Old May 18th, 2009, 09:01 PM   #4
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Basically is it not a standard decomb, there is a little more to it, I don't know a third party equilavent. It resolves to about 75% of the vertical resolution, but handles highlights better than most decomb deinterlacers.
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Old May 18th, 2009, 09:09 PM   #5
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Quote:
Originally Posted by Steve Mullen View Post
iMovie 09 requires progressive video in order to use all of its functions, yet Sony and Panasonic AVCHD camcorders shoot 1080i60. That opens three options:

1) deinterlace 1080i60 to 1080p30

2) deinterlace 1080i60 to 1080p60

3) standards convert 1080i60 to 720p60

4) standards convert 1080i60 to 540p60


Questions:

1) what method does neoscene use to deinterlace: Line-double, Frame-blend, Adaptive, or Decombing? Is it any better than the standard QT Deinterlace?

2) Is #2 possible with neoscene. (It combines adjacent fields across frame-boundaries as is done in flat-penal HDTVs.)

3) How about #3 or #4? What type of down-scaling is used by neoscene?
NeoScene does not allow down-scaling, so #3 and #4 are out. If the cameras can shoot 24p in 60i you can also use the pulldown removal.
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