Vertical interlacing?

[soujir0u]

Hi, I didn't know where to post this, hopefully I didn't get too far off.

Anyway, I have a concert video that seems to have lots of vertical lines in the picture. The video is interlaced, but a simple telecide() or swap field order manages to result in all progressive frames. I have attached an image to this post.

The vertical lines are especially evident if you zoom into the picture. I wonder if there's such a thing as vertical interlacing... Is there any filter that's able to get rid of these artifacts?

http://otakusanc.homestead.com/files/vertical.jpg

[sh0dan]

There is no such thing as vertical interlace - but there is a problem somewhere with the source. Did you capture this yourself?

It looks like a bug/problem somewhere - it could however be several problems:

- Buggy/bad capture hardware, where the A/D converter detects different luma values for every second pixel (the hardware probably sample two pixels at the time for YUY2 output).

- A buggy filter/codec was used for something in the process.

[Malevolent]

Don't know if this will work, but i imagine it might...

Turnright()
Fielddeinterlace()
Turnleft()


Try it out & let us know ;)







:devil:

[snowmoon]

By any chance did you use Vdub for capture and use realtime noise reduction? At one point the NR was screwy ans appered to work on every other pixel.... just a thought.

[soujir0u]

It's actually a DVD source. The vertical lines are there even if I play the DVD with WinDVD...

[jorel]

did you see this noises only with this dvd source?

is important to know cos it can be cables,the dvd player,
power suply,and maybe wireless telephone too, etc.
high noises can be generate out in the pc too,
like tvs, receivers next of pc.
seems to me a very high frequences noises under the pc,
not the source.

ahh...sorry my bad english!
:)

[soujir0u]

Yup, this is the first source I've seen with these lines...

[Kika]

First, i think it is a true interlaced Video, because most of concert videos are filmed with electronic cameras. So Telecide() can't get rid of the interlacing. (BTW: in order to brush up my english: was this correct or did i (again) anything wrong? ;) )

Second, maybe - maybe! - these lines are the result of wrong encoding (not the correct color range). In this case, you only can try Fiters like convolution3d. But i'm not sure abot this, never hat this problem.

[soujir0u]

Hmm.. Well, the thing is that if I use telecide(post=false), I don't get any combed frames and only very few blended frames. If I use fielddeinterlace, I get lots of blended frames.

I tried Malevolent's suggestion, and it actually helps but the picture is a bit blurrier.