Interlacing Artifacts

[Ken Diewert]

Originally Posted by David Jimerson

What exactly is it you're trying to achieve? A DVD presentation with no interlace artifacts?

What kind of a TV will you be watching on?

Yes, an interlace artifact-free DVD would be great in this and in most cases.

I've got an CRT Toshiba 1080i widescreen, but I've got to assume that it must be viewed optimally on standard 4:3, in many cases.

I've been using this project as part of an H1/Vegas training session. I'll be heading out next weekend to shoot a project that I would like to output to DVD for sale.

I will be downconverting for the near future, but I would like to have HDV master tapes for the future. Otherwise I would should SD 4:3.

It may be that I do have to shoot SD 4:3 to get a reasonable 4:3 viewable DVD, but I would then not have HDV master tapes.

I appreciate your help.

Ken.

[David Jimerson]

If it's going to be viewed most often on a standard TV, the interlacing artifacts won't show. It's only an issue when being viewed on progressive displays.

You put up a lot of barriers here for your result. If all you can do really is downconversion from the camera (not sure why that would be), and if the manual removal of pulldown doesn't work, and if you're not getting good results converting to 24p, there really seems to be only one option left -- 30f. It'll take some of the video look away and will give you progressive frames, but you won't be able to encode a progressive DVD. However, like I said, that won't matter on a standard TV, and if a progressive player/TV attempts to deinterlace it for display on a progressive TV, depending on how it's done, it may show very few or even no artifacts -- but again, that depends on the player/TV.

[Ken Diewert]

David,

I'm downconverting for now because I'm currently running a P4 2.4Ghz 512mb with lots of drive space. I'm replacing it soon, but was trying to manage in downconversion mode for awhile.

Ken.

[David Jimerson]

That makes sense. Give 30F a try.

[Ken Diewert]

David,

I rendered the project in DVD Architect 3 and burned some DVD's. All things considered it worked out well. Definitely no signs of interlacing (guess that makes sense on an interlaced TV).

Thanks for all the help. I'm going to shoot a couple of things in 60i to try posting on my system that way.

Ken.

[David Jimerson]

With 60i, you're going to see interlacing on a progressive display like a computer screen.

[Ken Diewert]

David,

Thanks for the heads up. Now I won't panic when I see it.

Ken.