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- W4205122683 abstract "Collecting samples from extraterrestrial body is of great significance for deep space scientific exploration. This paper proposes an autonomous grasping method to collect unknown natural samples from unstructured extraterrestrial surface in a safe, gentle and robust way. A deep reinforcement learning based end-to-end grasping pose estimation framework is designed. The proposed framework takes visual information as input and learns an appropriate grasping strategy. A feature extraction deep neural network and a reinforcement learning policy network are trained simultaneously so as to obtain light-weight networks for extraterrestrial detector. Meanwhile, in order to protect the sample from being damaged during grasping, collision detection is incorporated into the closed-loop during training. The grasping strategy is trained in simulation and is then transferred to real-world. Simulation and real-world experiments show that the learned policy can adapt to unseen irregular stones with less times of collision and at a high grasp success rate under single, scattered, and cluttered scenes." @default.
- W4205122683 created "2022-01-26" @default.
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- W4205122683 date "2022-01-01" @default.
- W4205122683 modified "2023-09-26" @default.
- W4205122683 title "Autonomous collision avoidance sample grasping method for extraterrestrial exploration" @default.
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- W4205122683 doi "https://doi.org/10.1016/j.actaastro.2022.01.017" @default.
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