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Use Warp Stabilizer based on background

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Jim ArcoUse Warp Stabilizer based on background
by on Mar 1, 2013 at 3:33:14 pm

While Warp Stabilizer usually does an excellent job, it is clearly biased toward stabilizing the foreground objects in the frame. I need to smooth a wobbly shot based on the background instead of the foreground. (Imagine a handheld panning shot of a graduate walking down an aisle toward the stage.)

There is an excellent tutorial on Adobe's site, but it assumes a greenscreen background with markers. I have tried masking the foreground object (person) but then WS trys to track the mask.

Ideally, I'd like to stabilize the shot based on the panned background, ignoring the moving foreground person. Any suggestions?

Jim


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Vishesh AroraRe: Use Warp Stabilizer based on background
by on Mar 1, 2013 at 3:53:52 pm

Jim

I have tried masking the foreground object (person) but then WS trys to track the mask.


Precompose the Footage after masking the FG object. Then use WS on Precomp where there is no Mask.

Vishesh Arora
3D and Motion Graphics Artist
Films Rajendra

Blog:
http://digieffects.wordpress.com

2011 3D Demo Reel:








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Jim ArcoRe: Use Warp Stabilizer based on background
by on Mar 1, 2013 at 4:44:30 pm

Vishesh,

Thanks for the idea. That seems to work OK.

How do I now 'link' the stabilized footage to the original footage without the mask? WS doesn't seem to generate any position keyframes, so there is nothing to which to parent the unmasked footage.

Jim


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Jim ArcoRe: Use Warp Stabilizer based on background
by on Mar 1, 2013 at 5:56:52 pm

Oops, I guess I could just delete the masks after WS. ;-)

Jim


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Vishesh AroraRe: Use Warp Stabilizer based on background
by on Mar 1, 2013 at 6:00:00 pm

Yeah ;)

Glad to help

Vishesh Arora
3D and Motion Graphics Artist
Films Rajendra

Blog:
http://digieffects.wordpress.com

2011 3D Demo Reel:








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