Tracking Camera of a Time Stretched Layer

I've seen the recommendations with Rich Gerard's being pretty descriptive but the thought had just occurred to me.  Have you considered doing all of the tracking before the stabilizing?  You say bumpy but not sure if it is so bumpy that it's untrackable.

My thought is, track it first, place your track objects or whatever you planned to do and then render out, bring back in to AE and THEN slow down and stabilize the footage.

Just a thought.

Eric

Your workflow is all fouled up.

1. Warp stabilize the original footage to preserve as many original pixels as you can
2. Render an image sequence (Preferable) or visually lossless digital intermediate from your original footage
3. Do your time changes to your new DI
4. Render another DI and add that to your project as the stabilized and slowed down footage
5. Do your camera tracking on the second DI

You may be able to get away with pre-comps and skipping the digital intermediate phase but it's very easy to get completely fouled up and unless the shot is very short the processing and rendering times are going to go through the roof. The number one goal in any workflow is to preserve as many original pixels and original frames as you can because everything you do starts to introduce errors.

Slowing down then warp stabilizing will throw more errors  by far than warp stabilizing and then slowing down. If you have done anything to your footage including just moving it a couple of pixels down into the right you must pre-compose that shot or render it before you try to use any kind of tracking including camera tracking.

I hope this helps.

Prerender the slo-mo & stabiliaed footage.  Use it for the camera track.