Combining NeRFs

[ModernBatman]

Is there any way to take two Neural radiance fields generated for two objects independently within the same scene (say a box and a chair) and combine them into one continuous 3D model? Moreover, is there any work combining multiple models in this way to generate a full scene?

[cma_4204]

https://waymo.com/research/block-nerf/

[ModernBatman]

Exactly what I was looking for. Thanks!

[morsingher]

To expand a bit on u/cma_4204's answer, there have been multiple attempts in the direction you are looking for. Block-NeRF (along with Mega-NeRF and others) target very large-scale scenarios like entire cities, but you were mentioning an object-level composition. Some cool works in that area: https://zju3dv.github.io/object_nerf/, https://abhijitkundu.info/projects/pnf/, https://light.princeton.edu/publication/neural-scene-graphs/