Find the Fruit: Zero-Shot Sim2Real RL for Occlusion-Aware Plant Manipulation

Fuente: arXiv
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Hauptverfasser: Subedi, Nitesh, Yang, Hsin-Jung, Jha, Devesh K., Sarkar, Soumik
Format: Preprint
Veröffentlicht: 2025
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author Subedi, Nitesh
Yang, Hsin-Jung
Jha, Devesh K.
Sarkar, Soumik
author_facet Subedi, Nitesh
Yang, Hsin-Jung
Jha, Devesh K.
Sarkar, Soumik
contents Autonomous harvesting in the open presents a complex manipulation problem. In most scenarios, an autonomous system has to deal with significant occlusion and require interaction in the presence of large structural uncertainties (every plant is different). Perceptual and modeling uncertainty make design of reliable manipulation controllers for harvesting challenging, resulting in poor performance during deployment. We present a sim2real reinforcement learning (RL) framework for occlusion-aware plant manipulation, where a policy is learned entirely in simulation to reposition stems and leaves to reveal target fruit(s). In our proposed approach, we decouple high-level kinematic planning from low-level compliant control which simplifies the sim2real transfer. This decomposition allows the learned policy to generalize across multiple plants with different stiffness and morphology. In experiments with multiple real-world plant setups, our system achieves up to 86.7% success in exposing target fruits, demonstrating robustness to occlusion variation and structural uncertainty.
format Preprint
id arxiv_https___arxiv_org_abs_2505_16547
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Find the Fruit: Zero-Shot Sim2Real RL for Occlusion-Aware Plant Manipulation
Subedi, Nitesh
Yang, Hsin-Jung
Jha, Devesh K.
Sarkar, Soumik
Robotics
Artificial Intelligence
Autonomous harvesting in the open presents a complex manipulation problem. In most scenarios, an autonomous system has to deal with significant occlusion and require interaction in the presence of large structural uncertainties (every plant is different). Perceptual and modeling uncertainty make design of reliable manipulation controllers for harvesting challenging, resulting in poor performance during deployment. We present a sim2real reinforcement learning (RL) framework for occlusion-aware plant manipulation, where a policy is learned entirely in simulation to reposition stems and leaves to reveal target fruit(s). In our proposed approach, we decouple high-level kinematic planning from low-level compliant control which simplifies the sim2real transfer. This decomposition allows the learned policy to generalize across multiple plants with different stiffness and morphology. In experiments with multiple real-world plant setups, our system achieves up to 86.7% success in exposing target fruits, demonstrating robustness to occlusion variation and structural uncertainty.
title Find the Fruit: Zero-Shot Sim2Real RL for Occlusion-Aware Plant Manipulation
topic Robotics
Artificial Intelligence
url https://arxiv.org/abs/2505.16547