Stabilize Anomaly

[Ben G unguren]

Looks like the “rolling shutter” problem to me. I’m guessing this was shot with a DSLR or other camera with a CMOS chip inside it.

I’ve had good results with the Foundry’s “Rolling Shutter” plugin — you get a 15-day free trial with it. The plugin is a bit pricey but you can also “rent” it for about $5/day — this is how I do it, as I usually only need to use the plugin every once in a while, and can do everything in a single day.

[Steve Brame]

I see that the ‘minimum order’ for rental is $70.

Steve Brame
creative illusions Productions

[Ben G unguren]

really? holy smokes, you’re right — I guess we did it all on the 15-day trial license. And to buy it’s $500. I’ve never tried this one, but it’s about half that price:
https://www.prodad.com/home/products/videostabilizing/300391667,l-us.xhtml

[Robert Ober]

[ben g unguren] “really? holy smokes, you’re right — I guess we did it all on the 15-day trial license. And to buy it’s $500. I’ve never tried this one, but it’s about half that price:
https://www.prodad.com/home/products/videostabilizing/300391667,l-us.xhtml“

Might try the demo of that one if I cannot get AE’s to work better. I suppose I should look at Resolve Lite and see if there is any rolling shutter reduction. I did not notice it, but it is a somewhat complex interface.

Thanks Gentlemen,
Robert

[Robert Ober]

[ben g unguren] “Looks like the “rolling shutter” problem to me. I’m guessing this was shot with a DSLR or other camera with a CMOS chip inside it.”

Not a fan of the DSLR movement although I understand it. I shot the event an AG-HPX300 on my shoulder which is CMOS and a AG-HMC150 on a tripod which is also CMOS. The shaky clip is of course from the HPX300. AE CS5.5 has rolling shutter reduction as part of the stabilize effect. I will try changing those settings.

Thanks,
Robert

[Conrad Olson]

Are you trying to use the new warp stabilzer?

I haven’t used it but I think it might be overkill for this shot. Can’t you just do an old fashioned point track to stabilize it? If you track two points you can stabilise the position and rotation and it won’t add any of those artefacts.

From what I’ve seen in the demos the warp stabilser is good when you have a camera moving through a scene. This looks like that camera is just hand-held to the movement you want to stablise is much more of a 2D problem.

—

conradolson.com

[Ben G unguren]

2D stabilization is what you want when your camera is on a tripod, or effectively on a tripod — like a handheld shot where the person isn’t changing his/her location.

Rolling shutter appears in CMOS cameras when there is a lot of horizontal movement, and has nothing to with whether the camera is moving in 2D or 3D space, nor does it have anything to do with the camera canting right or left. Stabilizing footage tends to enhance the visibility of rolling shutter rather then eliminate it. The solutions we’ve talked about are specifically for rolling-shutter removal — you’d use these in conjunction with a 2D or 3D tracking solution.

[Ben G unguren]

Addendum: I haven’t used the Warp Stabilizer either, so I just looked it up. It looks like the Warp Stabilizer (in AE CS 5.5) should do the job — very impressive plugin! It will track and remove rolling shutter in one go. Have you tried going into the Advanced settings of the plugin and fiddling with the rolling shutter options?

[Robert Ober]

[Conrad Olson] “Are you trying to use the new warp stabilzer?”

Yes, Warp Stabilize is what I have been using.

[ben g unguren] “Have you tried going into the Advanced settings of the plugin and fiddling with the rolling shutter options?”

I switched to Enhanced on the Rolling Shutter part and the wavy is diminished but still very noticeable. Have not gotten back into Resolve Lite, I think it broke with the latest Cuda upgrade.

I was thinking of the manual method, since I am a notalentwannabe is there a good, hopefully free, tutorial somewhere?

BTW, the Mercalli plugin does pretty good on the rolling shutter but seems to be terrible at stabilizing. I will play with it some more.

Thanks again men,
Robert

[Ben G unguren]

I don’t think manually correcting rolling shutter is a good idea — I’ve never heard any happy endings, at least.

Before coming across the “track and remove rolling shutter at the same time” solution in CS5.5, the process was (1)remove rolling shutter, (2) stabilize / motion track / etc. The rolling shutter was always the first thing that had to be corrected. (I figure if you’re going to break down the process and go all crazy-manual on us, that might be useful to know.) Good luck!

Ben Unguren
Motion Graphics & Editing
http://www.mostlydocumentary.com

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