ERMV:编辑4D机器人多视图图像以增强具身智能体
ERMV: Editing 4D Robotic Multi-view images to enhance embodied agents
AI总结:
针对机器人4D多视图操作数据稀缺问题,本文提出ERMV框架,通过EMA-Attn、稀疏STT模块和MLLM反馈干预实现一致、低成本的整序列编辑,显著增强VLA模型的鲁棒性与泛化性。
摘要:
机器人模仿学习依赖4D多视图时序图像。然而,高昂的数据采集成本和高质量数据的稀缺严重制约了视觉-语言-动作(VLA)模型等具身智能策略的泛化与应用。数据增强是克服数据稀缺的有力策略,但目前缺乏用于编辑操作任务4D多视图时序图像的方法。因此,我们提出ERMV(Editing Robotic Multi-View 4D data,编辑机器人多视图4D数据),这是一种新颖的数据增强框架,可基于单帧编辑和机器人状态条件高效编辑整个多视图序列。该任务面临三大核心挑战:(1)在动态视图和长时间跨度内保持几何与外观一致性;(2)以低计算成本扩展工作窗口;(3)确保机械臂等关键对象的语义完整性。ERMV通过一系列创新应对这些挑战。首先,为确保运动模糊中的时空一致性,我们引入新颖的极线运动感知注意力(EMA-Attn)机制,在施加几何约束之前学习由运动引起的像素位移。其次,为最大化编辑工作窗口,ERMV率先提出稀疏时空(STT)模块,该模块解耦时间和空间视图,并通过对视图进行稀疏采样来重构单帧多视图问题,从而降低计算需求。第三,为缓解误差累积,我们引入反馈干预机制,使用多模态大语言模型(MLLM)检查编辑不一致性,并仅在必要时请求有针对性的专家指导。大量实验表明,经ERMV增强的数据在仿真和真实世界环境中均显著提升了VLA模型的鲁棒性和泛化能力。
英文摘要:
Robot imitation learning relies on 4D multi-view sequential images. However, the high cost of data collection and the scarcity of high-quality data severely constrain the generalization and application of embodied intelligence policies like Vision-Language-Action (VLA) models. Data augmentation is a powerful strategy to overcome data scarcity, but methods for editing 4D multi-view sequential images for manipulation tasks are currently lacking. Thus, we propose ERMV (Editing Robotic Multi-View 4D data), a novel data augmentation framework that efficiently edits an entire multi-view sequence based on single-frame editing and robot state conditions. This task presents three core challenges: (1) maintaining geometric and appearance consistency across dynamic views and long time horizons; (2) expanding the working window with low computational costs; and (3) ensuring the semantic integrity of critical objects like the robot arm. ERMV addresses these challenges through a series of innovations. First, to ensure spatio-temporal consistency in motion blur, we introduce a novel Epipolar Motion-Aware Attention (EMA-Attn) mechanism that learns pixel shift caused by movement before applying geometric constraints. Second, to maximize the editing working window, ERMV pioneers a Sparse Spatio-Temporal (STT) module, which decouples the temporal and spatial views and remodels a single-frame multi-view problem through sparse sampling of the views to reduce computational demands. Third, to alleviate error accumulation, we incorporate a feedback intervention Mechanism, which uses a Multimodal Large Language Model (MLLM) to check editing inconsistencies and request targeted expert guidance only when necessary. Extensive experiments demonstrate that ERMV-augmented data significantly boosts the robustness and generalization of VLA models in both simulated and real-world environments.
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