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Vision-Language Foundation model should go to 3D for robotics!🤖 CoRL23 Oral: GNFactor learns Generalizable Neural Feature Fields for language conditioned manipulation on diverse scenes. It unifies 3D➕Stable Diffusion features using generalizable NeRFs.
56,268 görüntüleme • 2 yıl önce •via X (Twitter)
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Instead of optimizing a single NeRF per scene, GNFactor trains an encoder-based generalizable NeRF that allows generalization across different kitchens and different object arrangements. The NeRF feature can be extracted in real-time, allowing close loop control. 2/n

We train the generalizable NeRF on diverse kitchen scenes, and at the same time distill the pre-trained Stable Diffusion features into NeRF. This leverages semantics from 2D foundation models and puts them in 3D structure via NeRF. Below is view synthesis for features. 3/n

Another key insight: Instead of estimating the object location or states, we directly learn a policy on this 3D + Semantic feature. This avoids errors occuring in state estimation, but at the same time provides richer priors/representations compared to end-to-end approaches. 4/n

Related work: Our ICCV23 paper: FeatureNeRF: Learning Generalizable NeRFs by Distilling Foundation Models by @jianglong_ye We hope to continue pushing the direction of representation learning with NeRF in both vision and robotics. 5/n

Work done with @ZeYanjie, Ge Yan, @yh_kris, @anna_macalus, @tttoaster_, @jianglong_ye, @ncklashansen, @erranlli Paper:
