一种基于深度强化学习的VR重定向行走方法、系统

By constructing a deep reinforcement learning method with multi-scale observation space vectors and a multi-objective joint reward function, the problem of co-optimizing the continuity of exploration and the imperceptibility of perception in VR redirected walking is solved, enabling users to explore safely and continuously in the virtual environment and improving VR immersion and user experience.

CN122223281BActive Publication Date: 2026-07-17SHANDONG UNIV OF FINANCE & ECONOMICS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV OF FINANCE & ECONOMICS
Filing Date
2026-04-24
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing VR redirection walking methods based on deep reinforcement learning cannot achieve the synergistic optimization of exploration continuity and perceptual imperceptibility when the virtual space is much larger than the physical space. They also ignore the differences between different features, which prevents the model from making full use of differentiated features for effective guidance. Furthermore, when focusing on obstacle avoidance tasks, they neglect the critical balance between walking safety and perceptual imperceptibility during redirection.

Method used

By performing dense and sparse ray sampling on obstacles inside and outside the target VR user's field of vision, a multi-scale observation space vector with asymmetric representation is constructed. This vector is then encoded using the multi-scale spatiotemporal feature fusion network MSFF-Net. Combined with a deep reinforcement learning agent and a multi-objective joint reward function, the training is optimized to generate a redirection walking control strategy, enabling users to explore safely and continuously in the virtual environment.

Benefits of technology

It enables precise perception and effective guidance for users in complex virtual-physical spaces, simultaneously optimizing exploration efficiency, obstacle avoidance effects, and user comfort, extending the continuous collision-free walking distance for users, and enhancing the immersion and continuity of VR exploration.

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Abstract

本发明公开了一种基于深度强化学习的VR重定向行走方法、系统,涉及VR技术领域。本发明先对VR用户视野内外障碍物做密集与稀疏射线采样,结合运动状态构建非对称多尺度观测空间向量;再用MSFF‑Net编码得到多尺度时空特征向量;随后构建DRL智能体与融合探索效率、碰撞风险、感知舒适度的多目标奖励函数,以PPO算法训练;最终用训练好的智能体生成重定向策略,引导用户完成VR重定向行走。该方法通过多尺度观测与MSFF‑Net编码,结合PPO训练与多目标奖励,实现探索效率、主动避障、用户舒适度同步优化,降低碰撞概率,提升重定向不可察觉性,延长无碰撞行走距离,增强VR沉浸感与漫游连续性,适配复杂虚实场景。
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