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Interlacing Field Order
I’m trying to find out more in-depth info about Field Ordering. I know the basics that can be found in the Premiere help files. Specifically, I’d like to know how to determine what field order to use when I’m setting up a project. More often than not, my videos will need to be exported for DVD and also as a video file that can be played on the web. I’m currently just using Progressive all the time. My logic being that when my clients view the DVD version, they’re doing so on a big LCD or plasma TV, and when they view the web version it’s on a LCD computer monitor – either way the medium is digital, so progressive (no interlacing) makes sense for me to use. I have absolutely no way of knowing what kind of TV or DVD player they’ll be using, much less if they are progressive scan or not. Usually my clients don’t even have that information.
Also, what are the repercussions of choosing the wrong interlacing method? I mean, will it look strange in some way when you play the video? Does it mess with the brightness of the image, or flicker or something?
Thanks,
Dustin -
2 Replies
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The project field order should be based on the field order of your source material.
DVD playback hardware will handle the deinterlacing for display on LCD and Plasma. I think it’s called Bob &/or Weave deinterlacing.
In Premiere, unless you are using a deinterlacing plugin or some other creative processing technique, you are losing 50% of your vertical resolution when deinterlacing. Premiere’s deinterlacing method removes every other line, than doubles the remaining lines (removes one field, than duplicates the remaining field)to create a Progressive frame.
As long as you are in the DVD format, you should be okay.
But, if you’re going to be recompressing the video for web or desktop delivery you should deinterlace.
In which case you would create a second Premiere project, one that uses Progresive frames.Vince
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Thanks for taking the time to reply, Vincent. None of my source footage comes from a camera, it’s all digital frames rendered out of 3D animation software. So it sounds like I’m doing the right thing by using the progressive (no interlacing) option.
Good to know.
Thanks again,
Dustin
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