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Stabilize – still got the jitters
I get a lot of footage coming in that I’ve had nothing to do with shooting, so before you say ‘use a tripod’ you’re preaching to the converted.
Generally it’s handheld DV for corporate presentations and such. I’m using After Effects 7.0 pro on a 1.8ghz G5 Mac. The footage is PAL.
I’ve been using the stabilize feature with varying results. Sometimes it works well, but surprisingly, the clips with only a little bit of float, come out looking worse than when I started. They have an unnatural jitter which is even worse than the hand held look.
I’ve tried messing with the object selector size, the search area, and the options panel. I’ve tried applying more than one tracker. I’ve tried rendering and applying more trackers. And after hours of experimenting, am still none the wiser. It all seems a bit hit and miss.
Looking at the tutorials that are around, I’m doing all the right things. But I’m sitll not happy with the amount of jitter. This seems to be caused by the tracker flicking between pixels, when applied this turns into a nasty interlace type effect with all the lines trying to decide if they’re a pixel up or a pixel down.
I had a thought today, that maybe if I convert the footage to progressive, it might work a little better? And the other idea I had, is that if you could remove say, 4 of every 5 key frames, you could apply easy ease or whatever. Rather than elimiate the motion completely, resign yourself to the fact it’s going to be there, but smooth it out a bit. At least that might fix the unnatural jitter.
Is there a quck way to delete every nth key frame or do I have to do it all manually?
Is anyone else using the stabilize function on DV footage with any success? I take it it works better with higher resolution source material?
Any advice would be much appreciated.
Havanother1
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3 Replies
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most folks pick too small a target. Make sure you’re looking at enough pixels.
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> I’ve tried messing with the object selector size, the search area, and the options panel. I’ve tried applying more than one tracker. I’ve tried rendering and applying more trackers. And after hours of experimenting, am still none the wiser. It all seems a bit hit and mi< Weird as it sounds, preblur often helps. DV is interlaced so you can also try creating keyframes for each field. Save yourself tons of problems by using a 10 second clip for your test and only change one, maybe two, parameters at a time. FYI, I have found the stabilization in CS3 to be fabulous with our DV footage. bogiesan
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Thanks, maybe I just need to mess around a bit more. Or get the CS3 version.
havanother1
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