让治疗师远程安全指导康复训练,自动适配患者动作习惯。
Learning a Shape-adaptive Assist-as-needed Rehabilitation Policy from Therapist-informed Input
- 将治疗师修正力转为隐空间的路径点,减少干预强度。
- 学习可变形轨迹策略,降低矫正力32%以上,提升动作平滑度。
- 适合远程康复、个性化治疗场景,尤其适用于运动功能重建。
治疗师参与的机器人康复系统在提升康复效果方面展现出巨大潜力,但其广泛应用受限于交互安全性不足和适应能力弱。本文提出一种新型遥操作介导框架,使治疗师能直观、安全地实施按需辅助(AAN)疗法。首先,将治疗师提供的修正力编码为隐空间中的路径点,仅需最小干预即可保留患者自身运动偏好;其次,学习一种形状自适应的AAN康复策略,基于患者运动偏好与治疗师输入的路径点,部分且逐步地形变参考轨迹。在两种典型任务上的验证结果表明,该策略在远程AAN治疗中具有实用性,并在降低矫正力和提升动作平滑度方面优于两项先进方法。
原文摘要 · Abstract (English)
Therapist-in-the-loop robotic rehabilitation has shown great promise in enhancing rehabilitation outcomes by integrating the strengths of therapists and robotic systems. However, its broader adoption remains limited due to insufficient safe interaction and limited adaptation capability. This article proposes a novel telerobotics-mediated framework that enables therapists to intuitively and safely deliver assist-as-needed~(AAN) therapy based on two primary contributions. First, our framework encodes the therapist-informed corrective force into via-points in a latent space, allowing the therapist to provide only minimal assistance while encouraging patient maintaining own motion preferences. Second, a shape-adaptive ANN rehabilitation policy is learned to partially and progressively deform the reference trajectory for movement therapy based on encoded patient motion preferences and therapist-informed via-points. The effectiveness of the proposed shape-adaptive AAN strategy was validated on a telerobotic rehabilitation system using two representative tasks. The results demonstrate its practicality for remote AAN therapy and its superiority over two state-of-the-art methods in reducing corrective force and improving movement smoothness.
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