Graphic looks interlaced on top of footage

Apple Final Cut Pro Legacy

Graphic looks interlaced on top of footage

Posted by Nicholas Lamping on May 18, 2011 at 8:01 pm

Hi,

I’ve been searching for this solution in the forums but haven’t been able to find the answer.

I shot some interviews using a Canon Xl2 at 30p and then I use the suggested sequence settings for the footage when I added it to the timeline in Final Cut Pro.

Sequence Settings:
Frame Size: 720×480 NTSC DV (3:2)
Pixel Aspect Ratio: NTSC – CCIR 601 / DV (720×480) Anamorphic 16:9 (Ticked)
Field Dominance: Lower (Even)
Editing Timebase: 29.97
Compressor: Apple ProRes 422

This all looks great when I export using Quicktime Conversion H.264 853×480. But, the lower third graphic I am using looks interlaced when its fading in/out and when it moves horizontally.

The graphic is a png and 29.97 fps, but has square pixels and has no interlacing.

My question is, how do I get the graphic to not look interlaced but still have the footage look just as good?

Also, this video is for the web only.

Thanks,

Nick

Roli Rivelino replied 15 years, 2 months ago 4 Members · 6 Replies
6 Replies

Chris Tompkins
May 18, 2011 at 9:46 pm

If you shot 30p then your sequence settings should not be lower fields, it should be set to “none”

Chris Tompkins
Video Atlanta LLC
Nicholas Lamping
May 18, 2011 at 11:06 pm

I was confused why FCP’s suggested settings had lower field dominance when it was shot progressive. I switched it to “none” and the lower third graphic looks good, but the high contrast areas of the footage now have artifacts when I export. Any idea why that would be?

Thanks for the help.
Chris Tompkins
May 19, 2011 at 11:35 am

When you compress for the web you can get artifacts.

You should:

Export using “Current Settings”

Take that outputted file and drop it into your compression software.
Then create you web file.
High data rate will yield better results.

Chris Tompkins
Video Atlanta LLC
Nicholas Lamping
May 19, 2011 at 8:19 pm

Thanks for the tip.

I’m still getting these artifacts in the high contrast areas though. Any other ideas on how I can get rid of them? Or any tips on how I can avoid this in the future?

Here is a screenshot of what it looks like.
Greg Ball
May 20, 2011 at 2:15 pm

Looks like you could use some color correction on your video. Some of your levels may be too hot. Lowering the black level will give your image more detail. Lowering the whites and mid levels will also help.
Roli Rivelino
May 21, 2011 at 7:47 am

This article explains all you need to know about importing graphics https://www.larryjordan.biz/articles/lj_grfx_look.html

https://www.rolirivelino.com/

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