Possible, maybe, but I'd probably look at doing it a different way. The climbing on top looks like they're about to start mating...
I'd try masking the rings and animating them coming together, rather than using the stop motion.
It's all layers. Separate the rings from the background, create layers, composite. This requires compositing, rotoscope or keying and color correcting skills. The key is the preproduction planning and the way the images are shot.
Another option is to create the rings ad 3D objects and edit them in a 3D app like C4D, Blender or even in the 3D effects pugs from 3rd party vendors like Video Copilot or Zaxworks.
erhmm hehe yea, it does look like mating.
I'm not sure if it's worth that much work (I don't get paid that much) plus it will never look super realistic.
there was no planning, I just got the footage and some instructions on how it should look like, once again I can try it but it will take too much effort and it's not worth the payment
I was actually thinking about that but it's not worth it
based on the weird movement of the rings, i suspect they shot the two rings initially stacked and then pulled them apart with thread. then reversed the footage and removed the threads in post.