Tracking Blur in AE

[Brian Lynn]

There is good Motion Tracking tutorials on CreativeCow, check the FAQ, if you don’t find it there, try a Forums/Tutorials search under After Effects for Motion Tracking.

As far as your subject is concerned, you will probably have to rotoscope him/her as they cross the blurred area. If you can afford it, Mocha Tracking Station is AWESOME… it will help a LOT with tracking points that go off screen, or pass behind a subject. AE’s tracking will probably handle what you need, but you will have to do a bit of manual point tracking to fix problems that occur when/if your subject covers a point being tracked…

The tutorials found here on CC will show you the joys, and heartaches of rotoscoping/masking.

Good luck!

[Mike Clasby]

There are a couple of potions, but I like this script for roto work:

https://del.icio.us/escruz/Rotoscope

Put the script in you Support Folder>Scripts.

Duplicate your layer, then draw a mask over the poster.

Then File>Run>Script, choose rotAE.jsx.

Select the mask, and clcik on the “Apply Tracker’, an you get a tracker setup with as many points as you had on the mask (4 I’m assuming).

Run track on the poster (you might want to set the mask to Nonw for now), when it right… select the mask, and the Track (track 10 and clcik the Apply mask.

Now if you apply Blur to that top layer and turn the mask to Add, feather and expand as necessary, you should be good to go.

Alternatively (new to me):

There is a similar script here:

rotoTool
converts a mask to tracker points and transforms tracking data into a mask

https://www.nabscripts.com/Downloads/downloads_en_3.php?id=0

The walking in front is just roto, do it with several masks, each to a body pat, like torso, head, legs, etc, then animate Mask Shape… not much fun, hopefully they walk quickly.

[Tommyboy]

Thanks, Guys, I’m a novice on AE… I’m good on FCP. My editor doesn’t have a lot of time, and I need to get these blurs taken care of for Sundance.
T

[Mike Clasby]

You can also replace the offending poster with whatever you want. Here are some Adobe tuts:

Keep motion in perspective

https://studio.adobe.com/us/tips/tip.jsp?p=1&id=100241&xml=aft65cornerpin

Using the new Motion Tracker

https://studio.adobe.com/us/tips/tip.jsp?p=1&id=487&xml=aft6ttmotiontracker

Tracking obscured objects in video

https://studio.adobe.com/us/tips/tip.jsp?p=1&id=399&xml=aft6tracking

The last one is to basically just hold down Alt/Option if you want to reposition your track points just before they go off-screen (Alt keeps the Attach point in the same relative place).

Andrew has a lot f good tracking related stuff at his site, click his head (main page) and his link is there.

[Todd Kopriva]

Michele Yamazaki has a quick tutorial here for blurring out a logo using motion tracking:

https://toolfarm.com/tutorials/motiontrack.html

[Jimmy Brunger]

[Dave LaRonde] “Ever do any motion tracking? This’ll get you started:
” target=”_blank”>https://www.creativecow.net/articles/thompson_jay/animate_still_photo/DavysFinal-cow.mov”

I’m slightly confused in this tutew why he’s tracking a still photo? Surely you’d get the same result by parenting or pickwhipping position/anchor points?

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[Jimmy Brunger]

Ha ha! Yeah, obviously…but surely there’s no point tracking a still when you already have control over any movement on it anyway..Just thought tracking moving footage would make more sense. I wondered whether maybe I was missing something else..

*Production Studio Premium CS2 / *Combustion 3 / Mocha v1
————————————-
Win XP Pro SP2 / Intel P4 3GHz / 2GB RAM / GeForce FX5200 / DeckLink Pro / Roland DS-5 monitors / Sony BVM-20G1E / DVS SDI Clipstation / Wacom Intuos 3 A4 / 110GB boot/80GB media/600GB RAID-0