ALP: Action-Aware Embodied Learning for Perception

Xinran Liang, Anthony Han, Wilson Yan, Aditi Raghunathan, Pieter Abbeel

Primary Area: representation learning for computer vision, audio, language, and other modalities

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Keywords: embodied AI, active exploration, computer vision, pretraining and finetuning

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TL;DR: An embodied learning framework based on active exploration for visual perception by incorporating action information into representation learning.

Abstract: Current methods in training and benchmarking vision models exhibit an over-reliance on passive, curated datasets. Although models trained on these datasets have shown strong performance in a wide variety of tasks such as classification, detection, and segmentation, they fundamentally are unable to generalize to an ever-evolving world due to constant out-of-distribution shifts of input data. Therefore, instead of training on fixed datasets, can we approach learning in a more human-centric and adaptive manner? In this paper, we introduce Action-Aware Embodied Learning for Perception (ALP), an embodied learning framework that incorporates action information into representation learning through a combination of optimizing a reinforcement learning policy and an inverse dynamics prediction objective. Our method actively explores in complex 3D environments to both learn generalizable task-agnostic visual representations as well as collect downstream training data. We show that ALP outperforms existing baselines in several downstream perception tasks. In addition, we show that by training on actively collected data more relevant to the environment and task, our method generalizes more robustly to downstream tasks compared to models pre-trained on fixed datasets such as ImageNet.

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Submission Number: 2130