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arXiv 2406.13640cs.ROcs.CVcs.LG
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面向跨多类传感器与任务表征学习的可迁移触觉Transformer(Transferable Tactile Transformers)

Transferable Tactile Transformers for Representation Learning Across Diverse Sensors and Tasks

MIT CSAIL(麻省理工学院计算机科学与人工智能实验室)

Jialiang Zhao, Yuxiang Ma, Lirui Wang, Edward H. Adelson

AI总结:

针对触觉传感器与任务异构的问题,提出可迁移触觉Transformer框架T3,依托聚合13种传感器、11类任务的超300万样本FoTa数据集预训练,实现零样本迁移与高效微调,显著提升接触-rich操作任务成功率。

摘要:

本文提出T3:可迁移触觉Transformer(Transferable Tactile Transformers),这是一种可跨多传感器、多任务扩展的触觉表征学习框架。T3旨在解决当前基于相机的触觉感知高度异构的问题:即传感器具备不同的外形设计,现有数据集也针对各不相同的任务采集。T3通过构建带有传感器专属编码器和任务专属解码器的共享主干Transformer,捕捉不同传感器-任务配对之间的共享潜在信息。\nT3的预训练使用了全新的Foundation Tactile(FoTa,基础触觉)数据集,该数据集由多个开源数据集聚合而成,包含从13种传感器、11类任务中采集的超过300万个数据点,是目前触觉感知领域规模最大、多样性最高的数据集,且以统一格式公开提供。\n在多类传感器与任务上的实验表明,经FoTa预训练的T3在部分传感器-任务配对中实现了零样本迁移能力,还可通过少量领域特定数据进一步微调,且其性能随网络规模增大而提升。T3作为触觉编码器,在长时域、多接触的操作任务中也具备优异效果。亚毫米级多插针电子元件插入任务的结果显示,T3的任务成功率比使用从头训练的触觉编码器的策略高25%,比不使用触觉感知的策略高53%。数据、代码和模型检查点已在https://t3.alanz.info 开源。

英文摘要:

This paper presents T3: Transferable Tactile Transformers, a framework for tactile representation learning that scales across multi-sensors and multi-tasks. T3 is designed to overcome the contemporary issue that camera-based tactile sensing is extremely heterogeneous, i.e. sensors are built into different form factors, and existing datasets were collected for disparate tasks. T3 captures the shared latent information across different sensor-task pairings by constructing a shared trunk transformer with sensor-specific encoders and task-specific decoders. The pre-training of T3 utilizes a novel Foundation Tactile (FoTa) dataset, which is aggregated from several open-sourced datasets and it contains over 3 million data points gathered from 13 sensors and 11 tasks. FoTa is the largest and most diverse dataset in tactile sensing to date and it is made publicly available in a unified format. Across various sensors and tasks, experiments show that T3 pre-trained with FoTa achieved zero-shot transferability in certain sensor-task pairings, can be further fine-tuned with small amounts of domain-specific data, and its performance scales with bigger network sizes. T3 is also effective as a tactile encoder for long horizon contact-rich manipulation. Results from sub-millimeter multi-pin electronics insertion tasks show that T3 achieved a task success rate 25% higher than that of policies trained with tactile encoders trained from scratch, or 53% higher than without tactile sensing. Data, code, and model checkpoints are open-sourced at https://t3.alanz.info

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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