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Author

Xueyang Fu

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Preprint Aug 2026

OmniVR: Joint Video-Audio Conditional Generation for Restoring Degraded Historical Films

OminiVR surpasses all prior methods on all six visual metrics, achieves the best audio quality, and produces natural colorization---the first method to jointly address all three aspects of audio-video generative restoration.

Xin Lu, Zihao Fan, Mingchen Zhong et al. · 1 citation

Temporal-Synergistic Policy Optimization for Unsupervised Low-Light Image Enhancement

This work proposes an unsupervised low-light enhancement framework based on Group Relative Policy Optimization (GRPO), which utilizes perceptual preferences to directly optimize the diffusion policy and introduces a Sliding Window Hybrid ODE-SDE Sampling strategy that confines stochasticity to dynamic sub-intervals, thereby achieving efficient coarse-to-fine exploration and precise advantage attribution.

Yuanfei Bao, Dong Li, Jie Huang et al. · 0 citations

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