Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2507.05135 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866911191612260352 |
|---|---|
| author | Pchelintsev, Svyatoslav Patratskiy, Maxim Onishchenko, Anatoly Korchemnyi, Alexandr Medvedev, Aleksandr Vinogradova, Uliana Galuzinsky, Ilya Postnikov, Aleksey Kovalev, Alexey K. Panov, Aleksandr I. |
| author_facet | Pchelintsev, Svyatoslav Patratskiy, Maxim Onishchenko, Anatoly Korchemnyi, Alexandr Medvedev, Aleksandr Vinogradova, Uliana Galuzinsky, Ilya Postnikov, Aleksey Kovalev, Alexey K. Panov, Aleksandr I. |
| contents | Large Language Models are increasingly used in robotics for task planning, but their reliance on textual inputs limits their adaptability to real-world changes and failures. To address these challenges, we propose LERa - Look, Explain, Replan - a Visual Language Model-based replanning approach that utilizes visual feedback. Unlike existing methods, LERa requires only a raw RGB image, a natural language instruction, an initial task plan, and failure detection - without additional information such as object detection or predefined conditions that may be unavailable in a given scenario. The replanning process consists of three steps: (i) Look - where LERa generates a scene description and identifies errors; (ii) Explain - where it provides corrective guidance; and (iii) Replan - where it modifies the plan accordingly. LERa is adaptable to various agent architectures and can handle errors from both dynamic scene changes and task execution failures. We evaluate LERa on the newly introduced ALFRED-ChaOS and VirtualHome-ChaOS datasets, achieving a 40% improvement over baselines in dynamic environments. In tabletop manipulation tasks with a predefined probability of task failure within the PyBullet simulator, LERa improves success rates by up to 67%. Further experiments, including real-world trials with a tabletop manipulator robot, confirm LERa's effectiveness in replanning. We demonstrate that LERa is a robust and adaptable solution for error-aware task execution in robotics. The project page is available at https://lera-robo.github.io. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_05135 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | LERa: Replanning with Visual Feedback in Instruction Following Pchelintsev, Svyatoslav Patratskiy, Maxim Onishchenko, Anatoly Korchemnyi, Alexandr Medvedev, Aleksandr Vinogradova, Uliana Galuzinsky, Ilya Postnikov, Aleksey Kovalev, Alexey K. Panov, Aleksandr I. Robotics Large Language Models are increasingly used in robotics for task planning, but their reliance on textual inputs limits their adaptability to real-world changes and failures. To address these challenges, we propose LERa - Look, Explain, Replan - a Visual Language Model-based replanning approach that utilizes visual feedback. Unlike existing methods, LERa requires only a raw RGB image, a natural language instruction, an initial task plan, and failure detection - without additional information such as object detection or predefined conditions that may be unavailable in a given scenario. The replanning process consists of three steps: (i) Look - where LERa generates a scene description and identifies errors; (ii) Explain - where it provides corrective guidance; and (iii) Replan - where it modifies the plan accordingly. LERa is adaptable to various agent architectures and can handle errors from both dynamic scene changes and task execution failures. We evaluate LERa on the newly introduced ALFRED-ChaOS and VirtualHome-ChaOS datasets, achieving a 40% improvement over baselines in dynamic environments. In tabletop manipulation tasks with a predefined probability of task failure within the PyBullet simulator, LERa improves success rates by up to 67%. Further experiments, including real-world trials with a tabletop manipulator robot, confirm LERa's effectiveness in replanning. We demonstrate that LERa is a robust and adaptable solution for error-aware task execution in robotics. The project page is available at https://lera-robo.github.io. |
| title | LERa: Replanning with Visual Feedback in Instruction Following |
| topic | Robotics |
| url | https://arxiv.org/abs/2507.05135 |