Mouvement inverse planartracker

Hello

I try to retrieve the stabilization or Steady data from the planartracker in order to apply in reverse to find the original movements.

Context:
I used a planar tracker in steady mode, then applied a paint node for a correction. Now, I want to find the original movement. I don't see where to find the stabilization data of the Planar tracker?
thanks

If you copy the planar tracker node and use the steady mode, there is checkbox to inverse steady mode.

sshot-915.jpg (229.65 KiB) Viewed 1878 times

Steady / unsteady workflow may introduce a bit of softness into image so you may want to in the end replace steady / unsteady nodes with planar transform node for the paint tool you merge over the original. But it may not be a big deal, depending on what you are working on.

Image.jpg (146.35 KiB) Viewed 1846 times

Hello I had already tested your proposal, but it doesn't reverse in the way we understand it!

Not sure what you are doing, but its a pretty straightforward way to do steady / unsteady workflow, the way I illustrated. I can't see what you are doing or not doing, I can only see what you posted. At this point I'm not even sure if that is what you want or is that what you get but don't want. Need more information.

OK. I used the Steady mode on the planar to fix a shot because the camera moves suddenly. I put a paint in a row to correct the top of her forehead to the limit of the hairstyle. So far so good.

Now I have to unsteady to find the original camera movements. I've tested a lot of things, but the difficulty is to be able to retrieve the steading data from the Planar Tracker, "reverse" it and apply it to a node.

Unless another method is more appropriate

I hope all the tracking data will be transferred, but try to copy and paste this code in your fusion node area. It should illustrate the basic steady / unsteady workflow.

The only thing I can think of that you may have not done is if you started to track from somewhere in the middle of the clip and you set your refernce frame, than when you swich to steady you need to set steady refernce frame at the same one as your tracking one. Set and go buttons are for that.

I used some checkerboard pattern and some texture for the track to be able to track and instead of footage I can share the set up with you. I've also included fusion comp, just in case tracking data does not carry over. But try to copy and paste the code from text file to your fusion node area.

steady_unsteady_workflow.zip

(58.87 KiB) Downloaded 47 times

sshot-916.jpg (211.91 KiB) Viewed 1816 times

Je ne sais pas ce que tu fais mais il faut copier le même noeud où tu avais le mode steady > le mettre (coller) après ton noeud paint > cocher "reverse" sur ce noeud là...

Thank you for spending time on my case.

Yes, it works on your example, but you do it with a still image in the frame. In my case, there is camera movement and the actor moves inside the frame. The steady is done on a point of the character and the frame therefore rotates around with the Steady function. In the end, I have to find the original setting.

I did take the same reference image.

Thank you for spending time on my case.

Yes, it works on your example, but you do it with a still image in the frame.

I used something, could have been anything, I just used some checkerboard pattern and noise, which I than attached to transform node and used potrube modifer to add some random motion. Simulating unsteady footage. Which I than tracked and steady. Add paint node, paint on the steadied footage, and copy the tracker to inverse and match move in the end. I don't know what you are doing, but that is how you should be doing it.

In my case, there is camera movement and the actor moves inside the frame. The steady is done on a point of the character and the frame therefore rotates around with the Steady function. In the end, I have to find the original setting.

No idea idea what you did there. But follow what I have shown, it will work. You must be doing something that you shouldn't be doing. Since you didn't show what you are doing I can only speculate. But follow the basic appraoch I've shown and it will work.

Hello I understood your workflow. I can't give you the plan in question because of confidentiality, but here is one for understanding

https://we.tl/t-HayKQja4HW

I understood the problem. You have to add a merge with the original plan.

I eventually understood what you're trying to achieve... In this case, erasing the red brand name, right ?

Hello I understood your workflow. I can't give you the plan in question because of confidentiality, but here is one for understanding

I see now, your footage. Its a pretty much nightmare scenario. You have wobble carboard moving in one direction, shadows moving in another, and whole camera movement is in yet another one with some rolling shutter or shakiness, and on top of all that you have a nasty looking smudge on the lens of the camera. Pretty bad.

In this type of situation, you are unlikely to get away with just a single track or even if you track something and you can, like the sign on the cardboard, you are stuck with all the differnt movements and changing of light and things passing over each other.

So maybe freeze frame the best most clear frame, paint out what you can, and do that for each element. Shadow, lens dirty, sign or whatever you want to remove. You can freeze frame using time speed or time stretcher node.

But I think even with some assistance you are likley going to have to paint frame by frame. Too many moving parts and lighting change for single techniques, but you may be able to assist yourself with multiple tracks and freeze frames. Question is, is it worth the trouble.

If you don't have too many frames to work with, say 100 frames or so than I would recommend you do it manually frame by frame. Clone multistroke and paint tool. Move frame by frame and paint out elements you want. Because I'm not sure how else you would do it automatically. You can track things but they change over time, so you can't just freeze frame or if you do, than you would have to do it in several passes and again paint frame by frame.

C'est un scénario quasi cauchemardesque.

It was an example of an image for the exercise, on the film I'm working on, it's much worse! Shallow depth of field, shadow, camera movement, lack of contrast etc. On some shots I used several trackers and paint, piece by piece. On others, I did work frame by frame.

For this one, I wanted to use the Steady/ Unsteady which works well for part of the plan. Thank you

Je te réponds quand même vite fait, même si tu t'appliques à n'en avoir rien à foutre de mes réponses depuis le début du fil : tu aurais intérêt à faire un gros "insert", plutôt que de vouloir effacer.
C'est à dire un match move de toute la surface du carton retravaillée, puis rajouter le gars qui passe devant.

Just a suggestion in french to rather opt for inserting a large plane covering the whole plane than trying to paint little spots frame by frame and bothered by the shadow. It would get rid of the shadows as well, which you could add back later, as well as a matte for the working guy...

Sorry, when I typed "insert" in the bookmarks of an old machine firefox I'm on right now, I just had this old video about Mocha, but the technique is 100% the same :

Bonjour Sam,
J' ai bien lu vos posts, je n'en ai pas "rien à foutre" désolé de vous avoir froissé.
L'insert est effectivement une solution que j'ai appliqué souvent, mais ma problématique ici n'était pas de parfaire la retouche, mais de comprendre le processus Steady/Unsteady du planar que j'ai très bien expliqué dans mes posts. La vidéo que j'ai jointe étaient une video prétexte pour l'exemple.

A la prochaine.
Bonne journée

Oui, j'entends bien; le fait est que ce n'est pas la contrariété de l'absence totale de réponse qui est importante, mais que la réponse - même courte - avait été donnée globalement. Et si je te l'ai donnée c'est parce que je fais ça toute l'année
Donc finalement tu as perdu ton temps et tu n'es pas plus avancé, là maintenant... Bref...

To put an end, here after is what you were looking for, specifically at 05:05

Here is an option that might get you a fair bit of the way there. It's procedural and quite pain free. Your actual clip may present completely different challenges to this cardboard of course. You would need to do the shadows separately and a BrightnessContrast might be needed after Transform1 for a slight adjustment but this only took 15 minutes. You might need 5 or 6 paint frames at the end, I didn't want to push the size any further.
It's a kind of steady unsteady but using the Corner Pin and a mask so only a fraction of the image is affected.
https://drive.google.com/file/d/1UQw5qa ... drive_link