Interlaced video becomes wavy, *PICS Before & After

Forum|Forum|7 years ago
December 8, 2018
2 replies
2194 views

Hi all, I eliminated the (interlaced?) lines in my digitized '90s home video footage by selecting Modify > Interpret Footage > Field Order > Conform to "Lower Field First" (...not Progressive). This fix worked 90% of the time. However 10% of the time it made my footage look wavy/watery (instead of choppy). Or maybe it's a separate problem. I was Googling it, but the only thing I found was "Rolling Shutter Repair," and that didn't help. Can you please offer a solution?

Here are some specs...

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Averdahl

Community Expert

However 10% of the time it made my footage look wavy/watery (instead of choppy)

Depending on the hardware used when you captured the footage those 10% of your original footage may actually be Upper Field First. So if the footage is Upper Field First but are interpreted in Premiere Pro as Lower Field first there will be issues similar to the one you describe. (and vice versa...)

So it can be worth testing with Upper filed First as well.

B

BookBookAuthor

Known Participant

Thanks Meg The Dog and Averdahl. I don't have any information about how this footage was originally captured or converted. Changing Lower Field to Upper Field doesn't seem to help. Maybe I should say that in the PICS above, I had already changed the Pixel Aspect Ratio from Square Pixels (1.0) to D1/DV NTSC (0.9091). However, the waves appear whether I do this or not. I'm also using "Scale to Frame Size" because my footage is smaller than my 1080 Sequence.

Ann Bens

Community Expert

Hi Meg the Dog and Ann, Sorry! I take that back. I did NOT upscale the footage in the preview PICS I sent. However, I did upscale the footage in the project I'm working on. Either way, the problem persists. (I'm upscaling this clip in my project to match other footage that's bigger).

You cannot just plain upscale SD to HD without running into some kind of issue.