How does parallel inversion connect ith instantNGP?

[desifisker]

I'd like to create my own NeRF using InstantNGP then use parallel inversion to be able to query the nerf for a pose based on an observed image. I think I understand how InstantNGP works, but I am a little lost on how to actually use parallel inversion... any tips are appreciated!

[aboutzack]

Same questions.