arXiv:2412.00084cs.LGcs.RO2024-12被引 2

拆解扩散策略的五大组件,揭示其在机器人学习中的关键作用。

Unpacking the Individual Components of Diffusion Policy

  • 通过五个核心模块构建条件去噪扩散模型生成动作序列。
  • 在ManiSkill和Adroit基准上验证各组件对性能的贡献度。
  • 适合研究机器人模仿学习与扩散模型的开发者参考。

模仿学习为学习通用且复杂的机器人技能提供了有前景的路径。最近提出的扩散策略通过条件去噪扩散过程生成机器人动作序列,在与其它模仿学习方法对比中取得了最先进性能。本文总结了扩散策略的五个关键组成部分:1)观测序列输入;2)动作序列执行;3)滚动时域机制;4)U-Net或Transformer网络架构;5)FiLM条件调节。通过在ManiSkill和Adroit基准上的实验,本研究旨在阐明每个组件在不同场景下对扩散策略成功的影响。我们希望这些发现能为未来研究和工业应用中扩散策略的使用提供有价值的见解。

原文摘要 · Abstract (English)

Imitation Learning presents a promising approach for learning generalizable and complex robotic skills. The recently proposed Diffusion Policy generates robot action sequences through a conditional denoising diffusion process, achieving state-of-the-art performance compared to other imitation learning methods. This paper summarizes five key components of Diffusion Policy: 1) observation sequence input; 2) action sequence execution; 3) receding horizon; 4) U-Net or Transformer network architecture; and 5) FiLM conditioning. By conducting experiments across ManiSkill and Adroit benchmarks, this study aims to elucidate the contribution of each component to the success of Diffusion Policy in various scenarios. We hope our findings will provide valuable insights for the application of Diffusion Policy in future research and industry.

机器人学习扩散模型模仿学习

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