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Photo’s Jitter in AE moves?
Our client has given us very high resolution photos on a disc.
He wants us to perform very tight pan and scan moves of these photos.We have tried doing the moves of the photos themselves and using the AE camera.
So far the tests have not been what we had expected. There is jitter on the moves.We are rendering to Apple 10bit UC (lower field) codec to go DigiBeta from FCP 5.
We could also render with the Aurora Igniter 10bit UC Extreme codec. Would that help?Does anyone know a way to avoid this issue? Are there any plugins that could help
the jitter problem? Is this unavoidable?Thanks!!!
Stuart C Ferreyra
Timecode Multimedia
President
Santa Monica, CA 90025
310.826-9199 -
3 Replies
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Try the ‘remove interlace flicker’ filter from the ‘video’ effects.
Use a very small value like .1-.5 it DOES have a softening effect, but not noticably so If you are dealing with crisp elements to begin with…. Does wonders on uber-thin lines,…and may help with details in your pics vibrating……..
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Stuart,
Jeff’s suggestion to use the “Reduce Interlace Filter” effect may help.
I have a good deal of experience doing camera moves on photos and/illustrations. By camera moves I mean replicating in After Effects what used to be done with a Motion Control Camera Rig. This sounds like what you’re doing.
In my experience the best way to combat the ‘jitter” (or moire as it’s sometimes called) is to use the gaussian blur filter and blur tool in Photoshop.
If a photo/illustration contains fine lines and/or certain bright colors a moire will appear on the “camera move.” Usually, I will do a “save as” on my original image and bring it into Photoshop, saving it as a hi-rez TIF. Where the moire is most prevelant I will use the blur tool (on a low setting). I’ll blur only the areas which are jittering. I also may use a slight gaussian blur on the whole image. Afterwards, I will replace my original image with the new blurred one in After Effects.
As long as the image is a high resolution this should help. However, be spare. A little goes a long way.
Some things to keep in mind:
1. If you are zooming in to a specific area, obviously you want to be careful not to blur the image in this area too much.
2. You may want to try slowing down the move. The faster the pan/zoom/tilt, the more potential for jitter.
3. Things to look for in photos are herringbone patterns, stripes, etc…Again, a little blur on these goes a long way.
These are some suggestions which may work for you. I’ve worked on many documentaries and “cleaned up” thousands of images that were causing jitter/moire this way.
Cheers…
Johnny
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Thanks for the advice. Both very helpful.
We integrated all of your ideas and after quick fine tunning we have been able to
dramatically reduce the moire effect.They look great!
Thanks!!Stuart C Ferreyra
Timecode Multimedia
President
Santa Monica, CA 90025
310.826-9199
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