Mailing List AE-List@media-motion.tv ? Message #53019
From: Steve Oakley <steveo@practicali.com>
Subject: Re: [AE] Motion tracking
Date: Tue, 25 Feb 2014 11:03:19 -0600
To: After Effects Mail List <AE-List@media-motion.tv>
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I agree. so much depends on camera, mount, and if the props on the copter are balanced. bad balance = lots of vibration. there are so many factors involved that I'd want some quick tests or sample shots using same setup to see what problems you may or may not have.

S


On Tue, Feb 25, 2014 at 10:46 AM, David Torno <torno@sydefxink.com> wrote:
Depends on the camera being used. Drone recorded footage is VERY shaky, unless stabilized via a camera rig, not a post process. If a GoPro or CMOS chip camera is used, then rolling shutter becomes a huge issue. Given how intense a drone shakes, you can end up with a very warbled image that makes proper 3D tracking impossible. It's like tracking a funhouse mirror, no object is a reliable track point due to the constant rolling shutter warping. Clean stable image = clean post work.

David Torno
Technical Director
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"The most useless day is that in which we do not laugh"
-Charles Field

On Feb 25, 2014, at 3:33 AM, Anthony Clifford <anthony@sensia-media.nl> wrote:

Helle people,

I will start a exciting motion tracking assignment in a week.

The footage will be shot by a Drone. We will film a large open field where
there eventually be 3D buildings.

So some motion tracking and some 3D work.

Would the 3D camera tracker inside of AE be sufficient or should I try an other one?

And do I need tracker markers on the field?

I am new at this and every tip is very welcome.

Cheers,
Anthony




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