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interlace-like lines in moving parts of the video-image
Hi there,
I have a film which I have to show at an exhibition next saturday. I shot a scene in it with a canon xl1 and a panasonic dvx100a, edited on a g5 in fcp 4.5. Everything looks fine when I view the whole thing through the camera on the video monitor. However, when I use Quicktime or Compressor to make an mpeg2 file, interlace like lines appear on the edges of moving figures. Can it have something to do with a bad way of de-interlacing or something? I’d be really happy if somebody could help me as I have worked on this project for 1.5 years and don’t want the exhibition to be flawed.
Greetings,
Hanselblat -
4 Replies
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Hanselblat – I’m confused, are you seeing the interlace lines on your video monitor or your computer monitor?
And what will you be showing your project on?
TC -
Hi Perch,
thanks for your really quick reply. It’s an mpeg2 file I’m watching so it’s the computermonitor, not the video monitor. I also put the file via toast on a dvd and played it with a dvd player on a tv; same result. The projection during the exhibition will be from a dvd, via a dvd player and a beamer onto a projection screen. Do you have any idea; oh, maybe I should have mentioned I letterboxed the 4:3 image, but I don’t see how that could matter.
Greetings,
Hanselblat -
I run in to this all the time. my workaround is to export “using quicktime movie” (not using quicktime conversion)to an uncompressed 8-bit file. I take a hit on the large file but it is one of the few codecs that renders a file without the field artifacts. After the export, you can compress your file to Mpeg2 with your favorite transcoding App. This may not be the best or the most efficiant method but it works for me.
Kris
G4 dual 1.0
1.25 GB SDRAM -
I find the same thing happens to me when I convert to MPEG 2 and view it back in DVD studio pro etc…however it corrects itslef when burnt to DVD with the lines neither appearing when played back on a computer or television.
Not sure why it happens but I have learnt to ignore it.
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