Unverified50% confidenceFactExact time
早期视频生成架构如3D U-Net加时间注意力层的时间感受野通常仅覆盖16-24帧（约1-2秒）
1
Sources
50%
Confidence
Long-term
Relevance
8/7/2026
First Seen
Sources
AI视频生成进化史：从Will Smith吃面翻车到电影级画质
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