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Jon Barron Profile picture
Jon Barron
@jon_barron
Research scientist at Google in SF, NeRF person, normcore AI researcher
Jerome Ku Profile picture Nikolai Profile picture 2 subscribed
Mar 3, 2022 • 5 tweets • 3 min read
Very glad I can finally talk about our newly-minted #CVPR2022 paper. We extended mip-NeRF to handle unbounded "360" scenes, and it got us ~photorealistic renderings and beautiful depth maps. Explainer video: and paper: arxiv.org/abs/2111.12077 We "contract" Euclidean space into a bounded domain, which gets hard because we need to warp the mip-NeRF Gaussians that model 3D volumes of space. The trick for making this work is linearizing the contraction (thanks JAX!) and using the same math as an extended Kalman filter.