Video yükleniyor...

Video Yüklenemedi

Ana Sayfaya Dön

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)

5 Yorum

Xiaolong Wang profil fotoğrafı
Xiaolong Wang2 yıl önce

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

Xiaolong Wang profil fotoğrafı
Xiaolong Wang2 yıl önce

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

Xiaolong Wang profil fotoğrafı
Xiaolong Wang2 yıl önce

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

Xiaolong Wang profil fotoğrafı
Xiaolong Wang2 yıl önce

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

Xiaolong Wang profil fotoğrafı
Xiaolong Wang2 yıl önce

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

Benzer Videolar

3D-LLM: Injecting the 3D World into Large Language Models paper page: Large language models (LLMs) and Vision-Language Models (VLMs) have been proven to excel at multiple tasks, such as commonsense reasoning. Powerful as these models can be, they are not grounded in the 3D physical world, which involves richer concepts such as spatial relationships, affordances, physics, layout, and so on. In this work, we propose to inject the 3D world into large language models and introduce a whole new family of 3D-LLMs. Specifically, 3D-LLMs can take 3D point clouds and their features as input and perform a diverse set of 3D-related tasks, including captioning, dense captioning, 3D question answering, task decomposition, 3D grounding, 3D-assisted dialog, navigation, and so on. Using three types of prompting mechanisms that we design, we are able to collect over 300k 3D-language data covering these tasks. To efficiently train 3D-LLMs, we first utilize a 3D feature extractor that obtains 3D features from rendered multi- view images. Then, we use 2D VLMs as our backbones to train our 3D-LLMs. By introducing a 3D localization mechanism, 3D-LLMs can better capture 3D spatial information. Experiments on ScanQA show that our model outperforms state-of-the-art baselines by a large margin (e.g., the BLEU-1 score surpasses state-of-the-art score by 9%). Furthermore, experiments on our held-in datasets for 3D captioning, task composition, and 3D-assisted dialogue show that our model outperforms 2D VLMs. Qualitative examples also show that our model could perform more tasks beyond the scope of existing LLMs and VLMs.

AK

249,708 görüntüleme • 3 yıl önce

Excited to announce GR00T N1, the world’s first open foundation model for humanoid robots! We are on a mission to democratize Physical AI. The power of general robot brain, in the palm of your hand - with only 2B parameters, N1 learns from the most diverse physical action dataset ever compiled and punches above its weight: - Real humanoid teleoperation data. - Large-scale simulation data: we are open-sourcing 300K+ trajectories! - Neural trajectories: we apply SOTA video generation models to “hallucinate” new synthetic data that features accurate physics in pixels. Using Jensen’s words, “systematically infinite data”! - Latent actions: we develop novel algorithms to extract action tokens from in-the-wild human videos and neural generated videos. GR00T N1 is a single end-to-end neural net, from photons to actions: - Vision-Language Model (System 2) that interprets the physical world through vision and language instructions, enabling robots to reason about their environment and instructions, and plan the right actions. - Diffusion Transformer (System 1) that “renders” smooth and precise motor actions at 120 Hz, executing the latent plan made by System 2. We deploy N1 on GR1 robot, 1X Neo robot, and a large collection of simulation benchmarks. N1 achieves up to +30% boost in diverse manipulation tasks for household and industrial settings. While humanoid robots are the main focus of N1, our model also supports cross-embodiment. We finetune it to work on the $110 HuggingFace LeRobot SO100 robot arm! Open robot brain runs on open hardware. Sounds just right. Let’s solve robotics, together, one token at a time. Links to our Whitepaper, Github repo, HuggingFace model, and open dataset page in the thread: 🧵

Jim Fan

465,968 görüntüleme • 1 yıl önce