未来へのキーポイント:モデルベース強化学習における自己教師あり対応学習
Keypoints into the Future: Self-Supervised Correspondence in Model-Based Reinforcement Learning
画像からキーポイントの対応関係を自己教師ありで学習し、それを用いた予測モデルでモデルベース強化学習を行う手法を提案。3Dシーンやオクルージョン、カテゴリ汎化で精度が向上し、実機でも有効性を確認した。
著者: Lucas Manuelli, Yunzhu Li, Pete Florence, Russ Tedrake
分類: cs.RO
原文アブストラクト
Predictive models have been at the core of many robotic systems, from quadrotors to walking robots. However, it has been challenging to develop and apply such models to practical robotic manipulation due to high-dimensional sensory observations such as images. Previous approaches to learning models in the context of robotic manipulation have either learned whole image dynamics or used autoencoders to learn dynamics in a low-dimensional latent state. In this work, we introduce model-based prediction with self-supervised visual correspondence learning, and show that not only is this indeed possible, but demonstrate that these types of predictive models show compelling performance improvements over alternative methods for vision-based RL with autoencoder-type vision training. Through simulation experiments, we demonstrate that our models provide better generalization precision, particularly in 3D scenes, scenes involving occlusion, and in category-generalization. Additionally, we validate that our method effectively transfers to the real world through hardware experiments. Videos and supplementary materials available at https://sites.google.com/view/keypointsintothefuture
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