  Learning policies that can generalize to unseen environments is a fundamental
challenge in visual reinforcement learning (RL). While most current methods
focus on acquiring robust visual representations through auxiliary supervision,
pre-training, or data augmentation, the potential of modern vision foundation
models remains underleveraged. In this work, we introduce Segment Anything
Model for Generalizable visual RL (SAM-G), a novel framework that leverages the
promptable segmentation ability of Segment Anything Model (SAM) to enhance the
generalization capabilities of visual RL agents. We utilize image features from
DINOv2 and SAM to find correspondence as point prompts to SAM, and then SAM
produces high-quality masked images for agents directly. Evaluated across 8
DMControl tasks and 3 Adroit tasks, SAM-G significantly improves the visual
generalization ability without altering the RL agents' architecture but merely
their observations. Notably, SAM-G achieves 44% and 29% relative improvements
on the challenging video hard setting on DMControl and Adroit respectively,
compared to state-of-the-art methods. Video and code:
https://yanjieze.com/SAM-G/
