Is it interlacing??

Hi Guys,

Newbie question...

Going through some 4K drone footage, I can see quite a bit of shimmer whenever I look at areas of contrast or detail? So the side of buildings or the ground from above, when the drone moves, the lines of contrast shimmer.

Is this called "interlacing?"

Is there any easy fix / plug in that can rectify that?

Thank you,
Phil

phil@circuitfactory.ae wrote: …Is this called "interlacing?"…

No.
4k standards - luckily - don't allow that pest of the past

What you notice is probably 'edge enhancement' … in many cam menus euphemistic called "sharpening". Avoid next time.
I'm not aware of any method to get rid off this in post

phil@circuitfactory.ae wrote: ...Going through some 4K drone footage, I can see quite a bit of shimmer whenever I look at areas of contrast or detail? So the side of buildings or the ground from above, when the drone moves, the lines of contrast shimmer. Is this called "interlacing?" Is there any easy fix / plug in that can rectify that?...

It is definitely not interlacing as the content is progressive. My guess would be aliasing and/or moire. Moire can be pattern or color. It often manifests as a shimmering, flickering effect on detailed surfaces like brickwork.

The sharper image the more likely moire could happen. Some cameras use an optical low pass filter to reduce this, but it can decrease resolution slightly.

Aliasing and moire are very difficult (or impossible) to fix in post. Therefore some camera manufacturers have adopted a slightly softer image, figuring you can get the sharpness back using deconvolution sharpening more easily than you can fix aliasing/moire.

This is especially difficult on drone operations because you often cannot see the effect on the small screen, and it's transient based on the scene. Here is a discussion of aliasing & moire as it pertains to Sony video cameras: www.xdcam-user.com/tech-notes/aliasing-a...an-be-done-about-it/