Weiming Ren
2 papers · Latest:
Computer Vision
Tuna-2: Pixel Embeddings Beat Vision Encoders for Multimodal Understanding and Generation
Tuna-2 is a unified multimodal model using pixel embeddings for understanding and generation, outperforming vision encoders and simplifying architecture.
2604.24763
Artificial IntelligenceRationalRewards: Reasoning Rewards Scale Visual Generation Both Training and Test Time
RationalRewards uses explicit, multi-dimensional critiques to improve visual generation at both training and test time, outperforming scalar rewards.
2604.11626
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