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View Full Version : Rolling Shutter Correction using Optical Flow and 3D tracking



Gavin Greenwalt
04-23-2009, 08:28 PM
http://thefoundry.co.uk/blog.aspx


Here's a little something we've been working on in our spare time - correcting for CMOS rolling shutter artifacts.

We've noticed that using the phrase "CMOS rolling shutter" in a conversation gets you one of three responses:

Huh?
Not really an issue is it?
It has ruined my life.

Pietro Impagliazzo
04-23-2009, 08:30 PM
Wobble correction still looks a bit funky, but panning looks nice.

Greg M
04-23-2009, 08:32 PM
_Huh?

Gavin Greenwalt
04-23-2009, 08:39 PM
Yeah. Definitely not ready to be included in Furnace. But It's a good babystep towards a future where the application can understand the parallax and wobble it's seeing and then warp it out.

Also I think they accidentally just showed off the new Nuke6x 3d tracker interface for the first time.

Pietro Impagliazzo
04-23-2009, 08:47 PM
_Huh?

Shaky camera + Rolling shutter = Wobble.

http://vimeo.com/819044

Edit: Ok... But with the name digital FX and 2k+ posts I think you know very well what it is...

As we say in Brazil I'm trying to teach the priest to hold the mass.

:)

Luis de la Cerda
04-23-2009, 09:45 PM
The free deshaker plugin for virtualdub can correct rolling shutter panning and tilting artifacts(wobble, jello, any way you want to call it). What it doesn't do is correct moving subjects within the frame.

kidrobot
04-24-2009, 12:17 PM
Not really an issue is it?