DenseReward: Dense Reward Learning via Failure Synthesis for Robotic Manipulation
Overview
This research presents DenseReward, a dense robotic reward model designed to overcome limitations in reinforcement learning by synthesizing physically realistic failure trajectories without manual annotation. The system predicts frame-level reward scores from visual observations and language instructions, enabling fine-grained task progress estimation. Experiments show DenseReward outperforms general-purpose vision-language models and existing robotic reward models in both simulated and real-world manipulation tasks, providing effective guidance for downstream model predictive control and reinforcement learning.
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- arXiv Robotics — research abstractsSignalDenseReward: Dense Reward Learning via Failure Synthesis for Robotic Manipulation
This research presents DenseReward, a dense robotic reward model designed to overcome limitations in reinforcement learning by synthesizing physically realistic failure trajectories without manual annotation. The system predicts frame-level reward scores from visual observations and language instructions, enabling fine-grained task progress estimation. Experiments show DenseReward outperforms general-purpose vision-language models and existing robotic reward models in both simulated and real-world manipulation tasks, providing effective guidance for downstream model predictive control and reinforcement learning.
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