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  datasets:
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  - nkp37/OpenVid-1M
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  - TempoFunk/webvid-10M
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- ---
 
 
 
 
 
 
 
 
 
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  datasets:
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  - nkp37/OpenVid-1M
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  - TempoFunk/webvid-10M
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+ ---
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+ In this work, we present AMD Hummingbird-I2V, a compact and efficient diffusion-based I2V model designed for high-quality video synthesis under limited computational budgets.
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+ Hummingbird-I2V adopts a lightweight U-Net architecture with 0.9B parameters and a novel two-stage training strategy guided by reward-based feedback, resulting in
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+ substantial improvements in inference speed, model efficiency, and visual quality. To further improve output resolution with minimal overhead, we introduce a
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+ super-resolution module at the end of the pipeline. Additionally, we leverage ReNeg, an AMD proposed reward-guided framework for learning negative embeddings via
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+ gradient descent, to further boost visual quality. As a result, Hummingbird-I2V can generate high-quality 4K video in just 11 seconds with 16 inference steps on an AMD
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+ Radeon™ RX 7900 XTX GPU. Quantitative results on the VBench-I2V benchmark show that Hummingbird-I2V achieves state-of-the-art performance among U-Net-based
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+ diffusion models and competitive results compared to significantly larger DiT-based models. We provide a detailed analysis of the model architecture, training methodology,
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+ and benchmark performance.