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Old 4th June 2007, 17:05   #301  |  Link
Terka
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just want to try
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Old 5th June 2007, 12:44   #302  |  Link
WorBry
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IMHO, Yadif is a great 'general purpose' bobber for 'on-the-fly' deinterlaced playback, as well as standards conversion of interlaced content (via a bobbed intermediate).

For (high quality) rendered 50p output however, my staple deinterlacer remains MVBob, although I have found Yadif very useful for previewing DV footage for difficult scenes that call for the special services of MCBob, particularly 'detail moving over detail' and relatively static objects exibiting marked 'vertical jittering' (aka shimmering....Didee, please dont cringe). And therein (for me at least) lies the main drawback of Yadif in that, of all 'smart bobbers' I have tested, it appears to be the most prone to the 'bobby shimmers'.

I raised a similar query over in the Yadif thread, but I'm wondering if there are routines that might be applied to 'calm-down' (or correct) the jitters, even if not as efficiently as the mighty MCBob itself?

Last edited by WorBry; 5th June 2007 at 12:51.
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Old 18th June 2007, 19:41   #303  |  Link
Kool3ds
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CAn somebody suggest some nice and good bob deinterlacers which can convert fps to 59.94 and then i can use to repal to get it back to 24.975 fps. Thanks in advance.
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Old 18th June 2007, 21:13   #304  |  Link
smok3
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just making sure, if my source is 16:9 interlaced any my desired output y resolution is the same or lower than 288, is this the correct approach:

SeparateFields()
SelectOdd()
LanczosResize(512,288)

?
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Old 18th June 2007, 23:59   #305  |  Link
wonkey_monkey
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You'll get a less-aliased result by (smart) bobbing instead of separatingfields, because then you'll keep more of the static detail and get less aliasing when you resize (separatefields.selectodd is effectively a nearest neighbour resize to half height).

David
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Old 23rd June 2009, 09:51   #306  |  Link
wicked_chan
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Thans very much for didee and every body here.I read all our discussion.I download didee's MCBob_v03c and jase99's MCBob_v03u3_MVT2 and do my test.The result is :

1、They seems cause some damage to my picture on top of my screen.you can look at my picture's top edge.I don't why,I hope somebody can tell me.Thank you.



2、MCBob by didee is more stable than jase 99's.The stable means the screen 's stability.At fast movements,didee's MCBob is more stable and better.

What about your result?
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Old 23rd June 2009, 10:10   #307  |  Link
R3Z
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Quote:
Originally Posted by wicked_chan View Post
Thans very much for didee and every body here.I read all our discussion.I download didee's MCBob_v03c and jase99's MCBob_v03u3_MVT2 and do my test.The result is :

1、They seems cause some damage to my picture on top of my screen.you can look at my picture's top edge.I don't why,I hope somebody can tell me.Thank you.
2、MCBob by didee is more stable than jase 99's.The stable means the screen 's stability.At fast movements,didee's MCBob is more stable and better.

What about your result?
Looks like a garbage region that a simple crop + resize or crop + add border would fix.

Does a simple bob show the same artifact ?
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Old 24th June 2009, 17:22   #308  |  Link
wicked_chan
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Quote:
Originally Posted by R3Z View Post
Looks like a garbage region that a simple crop + resize or crop + add border would fix.

Does a simple bob show the same artifact ?
My script is:

LoadPlugin("C:\Program Files\Pure Codec\AviSynth 2.5\plugins\DGDecode.dll")
LoadPlugin("C:\Program Files\Pure Codec\AviSynth 2.5\plugins\UnDot.dll")
import("C:\Program Files\Pure Codec\AviSynth 2.5\plugins\MCBob.avsi")
DGDecode_mpeg2source("f:\192.d2v",info=3) #加载d2v源视频
MCBob()
Crop(8,0,704,480)
LanczosResize(640,480) #强制调整最终屏幕比例
undot()

Should the MCBob after Crop and lanczosResize?
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Old 25th June 2009, 06:34   #309  |  Link
R3Z
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Quote:
Originally Posted by wicked_chan View Post
My script is:

LoadPlugin("C:\Program Files\Pure Codec\AviSynth 2.5\plugins\DGDecode.dll")
LoadPlugin("C:\Program Files\Pure Codec\AviSynth 2.5\plugins\UnDot.dll")
import("C:\Program Files\Pure Codec\AviSynth 2.5\plugins\MCBob.avsi")
DGDecode_mpeg2source("f:\192.d2v",info=3) #加载d2v源视频
MCBob()
Crop(8,0,704,480)
LanczosResize(640,480) #强制调整最终屏幕比例
undot()

Should the MCBob after Crop and lanczosResize?
The way you have it is fine mate. Motion Compensated bobbing is best when all the fields are present so there is as much information as possible to reinterpolate lost information.

As a rule of thumb crop should always be done after deinterlacing and generally make it the last thing to be done before resizing.

Have you tried the bob function SecureBob ? Its part of the mvbob function and its super quick and the results are darn good.
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Old 26th June 2009, 18:10   #310  |  Link
wicked_chan
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Thank you very much.R3Z.

I don't konw the what happened in MCBob now.But it is very slow.That is true,But very good,hehe.
I will find your SecureBob to have a try.Thanks~
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Old 27th June 2009, 11:20   #311  |  Link
wicked_chan
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I read the thread again. I decide to use securebob now.Becuse it is very fast and good.
Could I keep it 60fps? I found 60fps is better than the 30fps.More stable.

Thank you very much.
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