RoboNet: Large-Scale Multi-Robot Learning

TL;DR

RoboNet dataset combined with visual foresight and inverse models enables cross-robot generalization, surpassing single-robot training with 4-20x less data.

cs.RO 🔴 Advanced 2019-10-24 54 views
Sudeep Dasari Frederik Ebert Stephen Tian Suraj Nair Bernadette Bucher Karl Schmeckpeper Siddharth Singh Sergey Levine Chelsea Finn
multi-robot learning transfer learning large-scale data visual prediction robot manipulation

Key Findings

Methodology

This work introduces RoboNet, an open dataset comprising 15 million video frames from 7 robots across multiple institutions, capturing diverse objects, viewpoints, and environments. The dataset is collected autonomously via self-supervision. The authors employ two algorithms: visual foresight, a deep model-based reinforcement learning approach that predicts future frames conditioned on actions, and supervised inverse models that predict actions needed to reach a goal image. Models are pre-trained on RoboNet and fine-tuned with minimal data from new robots, enabling zero-shot and few-shot generalization. Extensive experiments demonstrate improved performance in object relocation tasks across unseen objects, viewpoints, and robots, with success rates exceeding 40% and errors below 14cm after limited fine-tuning, outperforming models trained from scratch with 4-20 times more data.

Key Results

  • Pre-trained models generalize to unseen objects and viewpoints, reducing average error to 14cm and increasing success rates by over 20%. Fine-tuning with just 400 trajectories from new robots yields performance surpassing robot-specific models trained with significantly more data.
  • On unobserved robots like Franka and Kuka, minimal data (around 400 trajectories) enables models pre-trained on RoboNet to achieve success rates of 40-83%, vastly improving over random initialization.
  • Model capacity experiments show that increasing parameters from 5M to 200M reduces pixel error from ~0.104 to ~0.085, indicating current models are underfitting and larger models could further improve results.

Significance

This research addresses the longstanding challenge of data inefficiency in robotic learning by establishing a large-scale, multi-robot dataset and demonstrating that shared experience enables broad generalization. It paves the way for scalable, collaborative robot training, reducing data collection costs and accelerating deployment in real-world scenarios. The approach fosters cross-institutional knowledge sharing, crucial for advancing autonomous systems capable of operating in diverse, unstructured environments.

Technical Contribution

The paper introduces RoboNet, a comprehensive multi-robot dataset, and validates its effectiveness through experiments with visual foresight and inverse models. The key technical innovation lies in the pre-training plus few-shot fine-tuning paradigm, which leverages large, heterogeneous data to learn shared representations. The models employ a variant of SAVP for video prediction, capturing pixel-level motion, and demonstrate strong zero-shot and few-shot transfer capabilities across objects, viewpoints, and robots, outperforming traditional single-robot training approaches. The work also highlights the importance of model capacity and data diversity for generalization.

Novelty

This is the first large-scale, multi-institutional dataset covering multiple robot platforms, environments, and object sets, designed explicitly for transfer learning in robotics. It combines self-supervised data collection with advanced predictive models, enabling cross-robot, cross-scene generalization. The proposed pre-training and fine-tuning strategy significantly reduces data requirements for new robots, marking a substantial step forward from prior work limited to single-robot datasets or simulation-based approaches.

Limitations

  • Models still underperform in highly dynamic or cluttered environments, partly due to limited data diversity in extreme scenarios. Handling occlusions and complex interactions remains challenging.
  • Training large models requires substantial computational resources, limiting accessibility. Efficient architectures are needed for broader adoption.
  • Cross-platform data collection faces challenges in standardization and calibration, affecting transfer robustness. Future work should focus on unified data formats and sensor fusion.

Future Work

Future efforts will expand RoboNet with multimodal data (depth, tactile, audio), enhancing perception. Developing more scalable, efficient models will reduce computational costs. Investigating multi-task and multi-object learning frameworks can further improve adaptability. Additionally, fostering collaborative data sharing across institutions will accelerate the development of truly generalizable robotic systems.

AI Executive Summary

The quest for truly autonomous robots capable of operating seamlessly across diverse environments has long been hindered by data limitations. Traditional approaches rely heavily on collecting environment-specific data, which is costly and time-consuming. This paper introduces RoboNet, a groundbreaking large-scale dataset comprising 15 million frames from 7 different robots across multiple institutions, designed to facilitate cross-robot transfer learning.

Leveraging this dataset, the authors employ two core algorithms: visual foresight, a deep video prediction model that enables model-based control, and supervised inverse models that predict actions to reach target images. By pre-training these models on RoboNet, they demonstrate remarkable zero-shot and few-shot generalization capabilities. Experiments show that models can adapt to new objects, viewpoints, and even entirely new robots with minimal data, outperforming models trained from scratch with 4-20 times more data.

These findings have profound implications. They suggest that sharing large, diverse datasets can significantly reduce the data burden for individual robots, accelerating deployment and scaling of autonomous systems. The approach fosters collaboration across institutions, enabling collective progress in robot learning. Despite current limitations in handling highly dynamic scenes and the high computational cost of training large models, the work charts a promising path toward scalable, general-purpose robotic intelligence. Future developments will likely include multimodal data integration, more efficient architectures, and broader community-driven dataset expansion, ultimately realizing robots that learn and adapt as effortlessly as humans.

Deep Analysis

Background

Recent advances in deep learning have transformed robotic control, enabling end-to-end learning from visual data. Notable works include Deep Q-Networks (DQN), Deep Deterministic Policy Gradient (DDPG), and model-based methods like visual foresight. However, these approaches often rely on limited datasets or simulation, which lack the diversity and realism of real-world environments. The bottleneck remains the scarcity of large, varied, and shared datasets that can facilitate transfer learning across different robots and tasks. ImageNet's success in computer vision inspired efforts to create large-scale datasets for robotics, but such efforts are still nascent. Existing robotic datasets tend to be small and robot-specific, limiting generalization. This context underscores the importance of building comprehensive, multi-robot datasets like RoboNet, which can serve as a foundation for scalable, transferable robotic learning.

Core Problem

The core challenge is enabling robots to generalize across objects, environments, and hardware platforms with minimal data. Traditional methods require extensive environment-specific data collection, which is impractical at scale. The variability in robot kinematics, sensor configurations, and scene dynamics further complicates transferability. Achieving robust, zero-shot generalization remains elusive, hindering real-world deployment. The problem is compounded by the high cost and effort of data collection, motivating the need for large, shared datasets and models capable of leveraging such data for broad generalization.

Innovation

The key innovations include: 1) RoboNet, a large, multi-institutional dataset with diverse robots, objects, and scenes, collected via autonomous self-supervision; 2) integration of visual foresight and inverse models, validated for cross-object, viewpoint, and robot transfer; 3) a pre-training plus few-shot fine-tuning paradigm that reduces data needs for new robots; 4) extensive experiments demonstrating zero-shot and few-shot generalization, outperforming single-robot models; 5) analysis of model capacity and data diversity effects, highlighting underfitting issues and future directions for larger models.

Methodology

  • �� Data collection: Autonomous recording of 1500万帧视频,涵盖7个机器人平台,场景多样,利用随机动作策略。• 模型训练:采用视觉前瞻(visual foresight)网络,基于SAVP架构,训练动作条件视频预测,利用像素点目标引导操控。• 逆模型:训练监督逆模型,预测达到目标图像所需动作。• 预训练与微调:在RoboNet上预训练模型,少量目标机器人数据(约400轨迹)微调,提升迁移性能。• 跨平台迁移:验证模型在未见机器人(Franka、Kuka)上的少样本适应能力。• 评估指标:目标位置误差(cm)和成功率(%),在不同对象、视角和机器人上测试。

Experiments

采用多场景、多机器人数据集,设计对象迁移、视角变化、机器人适应等任务。基线为单机器人模型,比较预训练+微调策略的性能差异。关键指标包括目标误差(cm)和成功率(%)。实验中调节模型容量,验证欠拟合现象。还测试不同数据子集对性能的影响,分析模型泛化机制。所有模型在相同测试环境下评估,确保公平性。结果显示,预训练模型在新对象和新视角下表现优异,微调后在未见机器人上成功率达40-83%,误差降至14cm。

Results

预训练模型在未见对象和视角下,成功率提升20%以上,平均距离误差降低至14cm。微调仅需400轨迹,即可超越用4-20倍数据训练的单机器人模型。在未见机器人(Franka、Kuka)上,少量微调显著改善性能,成功率提升至40-83%。模型容量实验表明,参数从5M提升至200M,误差下降,显示模型仍欠拟合,未来可通过更大模型提升性能。

Applications

该方法适用于工业机器人、服务机器人等场景,尤其在多机器人协作、快速适应新任务方面具有潜力。通过共享大规模数据,降低新环境适应成本,加快部署速度。未来可结合多模态传感器,提升感知与操控能力,推动机器人自主学习的普及。

Limitations & Outlook

模型在极端复杂环境表现仍有限,主要因数据多样性不足。大规模模型训练成本高,需大量计算资源。跨平台数据采集面临标准化和校准挑战,未来需优化采集流程,提升模型效率和泛化能力。

Plain Language Accessible to non-experts

想象你在一家厨房做饭,厨房里有不同的厨具、食材和操作方式。每次你用不同的厨具或食材,学会了怎么做菜。现在,如果你有一本超级大厨秘籍,里面记载了各种厨具、食材和做菜的技巧,不管用哪个厨具或食材,你都能做出好菜。这个秘籍就像RoboNet,里面有很多不同机器人的“经验”,让机器人学会在不同环境中操作。通过反复学习这些经验,机器人可以在新环境中快速找到做菜的方法,而不用每次都从零开始。这样,机器人就变得更聪明、更灵活,能应对各种厨房挑战,就像我们学会了做各种菜一样。

ELI14 Explained like you're 14

想象你在玩一个超级复杂的游戏,你需要用不同的角色、不同的武器和在不同的场景中完成任务。以前,你每次换角色都要重新学会怎么打怪、怎么用武器,非常麻烦。而现在,有一本神奇的攻略书,里面记载了各种角色和场景的经验。只要你看一眼,就能知道怎么用新角色打怪,怎么用新场景完成任务。这个攻略书就像RoboNet,里面有很多机器人在不同环境中的“经验”。通过学习这些经验,机器人可以在遇到新对象、新场景时,快速找到解决办法,而不用从头开始学。这让机器人变得更聪明、更快,能帮我们完成更多挑战。

Glossary

视觉前瞻(Visual Foresight)

一种基于深度学习的视频预测模型,用于预估未来场景中的图像变化,帮助机器人规划动作。

在论文中用于训练机器人自主操控的核心算法。

逆模型(Inverse Model)

一种监督学习模型,预测达到目标图像所需的动作,用于目标导向的机器人控制。

作为另一种自主学习方法,与视觉前瞻结合验证泛化能力。

RoboNet

一个包含7个机器人平台、1500万帧视频的开放机器人数据集,用于多源、多场景的机器人学习研究。

论文的核心数据资源,支持跨机器人迁移学习。

微调(Fine-tuning)

在预训练模型基础上,用少量目标任务数据进行再训练,以提升在新环境中的表现。

实现模型在新机器人上的快速适应。

视频预测(Video Prediction)

预测未来场景变化的深度网络,用于规划机器人动作。

视觉前瞻算法的核心技术。

Open Questions Unanswered questions from this research

  • 1 如何进一步提升模型在极端复杂环境中的表现,特别是在动态遮挡和多目标场景下的适应能力。当前模型对环境变化的鲁棒性仍有限,未来需要探索更强的感知与决策机制。

Applications

Immediate Applications

工业机器人自主操作

利用RoboNet训练的模型,实现多机器人在装配线上的自主协作与任务迁移,降低人工调试成本,提升生产效率。

服务机器人快速适应新环境

在不同场景中快速微调模型,使服务机器人能在多变的家庭或公共场所中自主完成任务。

Long-term Vision

多机器人协作系统

建立跨机构、跨平台的机器人经验库,实现大规模协作与知识共享,推动智能机器人普及。

自主探索与适应

未来机器人能在未知环境中自主探索,利用大规模数据快速适应复杂任务,推动无人探索、救援等应用。

Abstract

Robot learning has emerged as a promising tool for taming the complexity and diversity of the real world. Methods based on high-capacity models, such as deep networks, hold the promise of providing effective generalization to a wide range of open-world environments. However, these same methods typically require large amounts of diverse training data to generalize effectively. In contrast, most robotic learning experiments are small-scale, single-domain, and single-robot. This leads to a frequent tension in robotic learning: how can we learn generalizable robotic controllers without having to collect impractically large amounts of data for each separate experiment? In this paper, we propose RoboNet, an open database for sharing robotic experience, which provides an initial pool of 15 million video frames, from 7 different robot platforms, and study how it can be used to learn generalizable models for vision-based robotic manipulation. We combine the dataset with two different learning algorithms: visual foresight, which uses forward video prediction models, and supervised inverse models. Our experiments test the learned algorithms' ability to work across new objects, new tasks, new scenes, new camera viewpoints, new grippers, or even entirely new robots. In our final experiment, we find that by pre-training on RoboNet and fine-tuning on data from a held-out Franka or Kuka robot, we can exceed the performance of a robot-specific training approach that uses 4x-20x more data. For videos and data, see the project webpage: https://www.robonet.wiki/

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