Aliasing and stuttering issues on HD source

bizz & buzz · 22nd December 2009, 20:42

Hello,

My source is 1080i25 music video capture. Using Srestore() solved the interlacing and filed-blends issues, but now there's a stutter caused by what seems to be dupe frames. Worse then the stuttering, there's some very bad aliasing I couldn't get rid of, no matter what I tried.

Here are samples of aliasing and stuttering from the unprocessed source (TS files) + same samples processed with the script below and encoded to Xvid (Avi):
http://www.mediafire.com/?zugnugj3mzd (26 MB).

Script:

Code:

DSS2("D:\HDTV.ts")
AssumeTFF()
tdeint(mode=1)
srestore()

Any advice on these issues? I'm out of ideas

bizz & buzz · 23rd December 2009, 10:34

Actually, this "aliasing" problem is so bad, that I'm not sure I can call it aliasing anymore. Another thing is that this artifact is not on every frame, but appears in an alternately fashion.
here it is:

RunningSkittle · 23rd December 2009, 12:27

post sample please!

bizz & buzz · 23rd December 2009, 12:36

Link is under "Mediafire" in the first post. I'll edit it to make it more clear.

Didée · 23rd December 2009, 12:43

Hmh. Quickly looking at the source, you might want to ask MTV if they destroyed the clip on purpose, or if they're simply incompetent.

bizz & buzz · 23rd December 2009, 12:45

I know, it's a total mess

is there any way to make it better?

Didée · 23rd December 2009, 13:04

Off hand, I see no way.

Fact is (seems to be) that they took already-fieldblended SD crappola, and just blew it up to HD res. I'm not sure if the upscale even was done correctly. I quickly tried to re-downscale it to interlaced SD, but that still looks quite messy. Personally, I would not invest much time into that. Label it "FUBAR", and let it be.

bizz & buzz · 23rd December 2009, 13:25

I was afraid you were going to say that...
Anyway, is there any clue on what might have caused this "mega-aliasing"?

Lyris · 23rd December 2009, 14:57

Sorry I can't add a lot more other than: "UNBELIEVABLE". The most stupid part is the huge burned-in "MTV HD" ("HD"????) logo!

Didée · 23rd December 2009, 22:30

The actual meaning of "HD" is case dependent. It can stand for "High Definition". But it can also mean "Huge Disappointment", or "Hilarious Disaster", ...

(for the wordsmiths: any way to make "empty promises" fit to the letters h+d? Or something with "scam" or similar?)

bizz & buzz · 24th December 2009, 01:08

Quote:

Originally Posted by Didée

The actual meaning of "HD" is case dependent. It can stand for "High Definition". But it can also mean "Huge Disappointment", or "Hilarious Disaster", ...

(for the wordsmiths: any way to make "empty promises" fit to the letters h+d? Or something with "scam" or similar?)

LOL... at least one good thing came out of this s***** source.

Leak · 24th December 2009, 02:01

Quote:

Originally Posted by Didée

(for the wordsmiths: any way to make "empty promises" fit to the letters h+d? Or something with "scam" or similar?)

"Hollow" for "empty" comes to mind, but "promises" is a toughy...

Gavino · 24th December 2009, 13:59

Quote:

Originally Posted by Didée

Or something with "scam" or similar?)

How about "humongous deception"?

Happy Christmas, everyone.

thetoof · 26th December 2009, 09:37

Nice thread

Merry Christmas!

Mounir · 27th December 2009, 04:47

HD stand for Highly Destructive actually

Lyris · 27th December 2009, 05:00

Here's another case of "Hilarious Disaster":
http://www.lyris-lite.net/2009/12/26...ray-disc-ever/

For those who don't want to hit the link: a Blu-ray Disc with an upconverted SD transfer which isn't even acceptable by SD standards.

22nd December 2009, 20:42	#1 \| Link
bizz & buzz Banned Join Date: Jun 2008 Posts: 94	Aliasing and stuttering issues on HD source Hello, My source is 1080i25 music video capture. Using Srestore() solved the interlacing and filed-blends issues, but now there's a stutter caused by what seems to be dupe frames. Worse then the stuttering, there's some very bad aliasing I couldn't get rid of, no matter what I tried. Here are samples of aliasing and stuttering from the unprocessed source (TS files) + same samples processed with the script below and encoded to Xvid (Avi): http://www.mediafire.com/?zugnugj3mzd (26 MB). Script: Code: DSS2("D:\HDTV.ts") AssumeTFF() tdeint(mode=1) srestore() Any advice on these issues? I'm out of ideas Last edited by bizz & buzz; 23rd December 2009 at 12:42. Reason: edit samples link

23rd December 2009, 12:43	#5 \| Link
Didée Registered User Join Date: Apr 2002 Location: Germany Posts: 5,391	Hmh. Quickly looking at the source, you might want to ask MTV if they destroyed the clip on purpose, or if they're simply incompetent. __________________ - We´re at the beginning of the end of mankind´s childhood - My little flickr gallery. (Yes indeed, I do have hobbies other than digital video!)

23rd December 2009, 13:04	#7 \| Link
Didée Registered User Join Date: Apr 2002 Location: Germany Posts: 5,391	Off hand, I see no way. Fact is (seems to be) that they took already-fieldblended SD crappola, and just blew it up to HD res. I'm not sure if the upscale even was done correctly. I quickly tried to re-downscale it to interlaced SD, but that still looks quite messy. Personally, I would not invest much time into that. Label it "FUBAR", and let it be. __________________ - We´re at the beginning of the end of mankind´s childhood - My little flickr gallery. (Yes indeed, I do have hobbies other than digital video!)

23rd December 2009, 22:30	#10 \| Link
Didée Registered User Join Date: Apr 2002 Location: Germany Posts: 5,391	The actual meaning of "HD" is case dependent. It can stand for "High Definition". But it can also mean "Huge Disappointment", or "Hilarious Disaster", ... (for the wordsmiths: any way to make "empty promises" fit to the letters h+d? Or something with "scam" or similar?) __________________ - We´re at the beginning of the end of mankind´s childhood - My little flickr gallery. (Yes indeed, I do have hobbies other than digital video!)

26th December 2009, 09:37	#14 \| Link
thetoof Sleepy overworked fellow Join Date: Feb 2008 Location: Maple syrup's homeland Posts: 933	Nice thread Merry Christmas! __________________ AnimeIVTC() - v2.00 -http://boinc.berkeley.edu/- Let all geeks use their incredibly powerful comps for the greater good (no, no, it won't slow your filtering/encoding :p)

23rd December 2009, 10:34	#2 \| Link
bizz & buzz Banned Join Date: Jun 2008 Posts: 94	Actually, this "aliasing" problem is so bad, that I'm not sure I can call it aliasing anymore. Another thing is that this artifact is not on every frame, but appears in an alternately fashion. here it is:

23rd December 2009, 12:27	#3 \| Link
RunningSkittle Skittle Join Date: Mar 2008 Posts: 539	post sample please!

23rd December 2009, 12:36	#4 \| Link
bizz & buzz Banned Join Date: Jun 2008 Posts: 94	Link is under "Mediafire" in the first post. I'll edit it to make it more clear.

23rd December 2009, 12:45	#6 \| Link
bizz & buzz Banned Join Date: Jun 2008 Posts: 94	I know, it's a total mess is there any way to make it better?

23rd December 2009, 13:25	#8 \| Link
bizz & buzz Banned Join Date: Jun 2008 Posts: 94	I was afraid you were going to say that... Anyway, is there any clue on what might have caused this "mega-aliasing"?

23rd December 2009, 14:57	#9 \| Link
Lyris Registered User Join Date: Sep 2007 Location: Europe Posts: 602	Sorry I can't add a lot more other than: "UNBELIEVABLE". The most stupid part is the huge burned-in "MTV HD" ("HD"????) logo!

27th December 2009, 04:47	#15 \| Link
Mounir Registered User Join Date: Nov 2006 Posts: 779	HD stand for Highly Destructive actually

27th December 2009, 05:00	#16 \| Link
Lyris Registered User Join Date: Sep 2007 Location: Europe Posts: 602	Here's another case of "Hilarious Disaster": http://www.lyris-lite.net/2009/12/26...ray-disc-ever/ For those who don't want to hit the link: a Blu-ray Disc with an upconverted SD transfer which isn't even acceptable by SD standards.

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