Deinterlace and DVD conversion

[marcin 0]

I recently produced my first DVD's, using Ulead for editing and DVD production/(conversion fron AVI to MPEG).

1) The picture falls apart where motion is sped up or slowed down, or simply with fast movements. I normally deinterace the ready project, but was told that without deinterlacing I may get better results (even) on the TV.

2) Should I deinterlace, if the movie is viewed using an LCD projector and played from a mini DV tape? My fist experience is that w/out d/lace it appears better.

Your opinions?

Marcin

[Spike 0]

Ok, I'm no expert but imho to de-interlace or not depends on the target viewing device.

So if you expect to view the footage on a pc/mac monitor, then de-interlace.

TV's are interlaced devices and the footage should remain interlaced.

[slayer21016 2]

Quote

1) The picture falls apart where motion is sped up or slowed down, or simply with fast movements. I normally deinterace the ready project, but was told that without deinterlacing I may get better results (even) on the TV.

When you say the picture falls apart what exactly do you mean?.

The only time that you should have to De-Interlace on purpose is when using still frames captured from video or compressing video for the web (optional) as the tv/viewer try's to show the still frame(s) as a moving image. but since it's Interlaced (odd/even fields) you get a blinking effect because the viewer is trying to show two fields at once. De-Interlacing also adds a slight blur to the video and gives it a softer look. some people use De-Interlace to help give DV video a film look.

If the problem is when the video speeds up or slows down i would think it's a problem with the computer it self not being able to play the video back at full speed/resolution having alot of memory can help here.

I hope this helps

[marcin 0]

Thanks! I've been mistaken for a long time as to when to use deinterlace. Regularly used it for TV-screening designed projects, but only realized something was wrong when burned it on DVD.

The picture falls apart into separate horizontal lines, when there is a fast action or slow mo'.

There is no problem when playing on computer. I'll try to burn an interlaced project onto DVD and see how it looks played on TV.

M.