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wiki/concepts/Clone-Faces.md
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title: "Clone Faces"
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type: concept
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tags: [AI Generation, Bias, Image]
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date: 2026-04-20
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---
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## Definition
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AI 在生成多元群体图像或视频时,生成多个版本相同面孔的问题。这是基础图像模型(如 Midjourney、Sora、Runway)的系统性缺陷,需要通过显式约束防止。
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## Why It Happens
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- 模型的训练数据偏向特定面部特征
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- 缺乏对面部多样性的显式约束
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- 文本到图像的映射在处理"多样化群体"时产生重复
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## How to Counter
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- 明确要求不同的面部结构、年龄和体型
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- 使用负向提示如"no duplicate faces"、"no cloned faces"
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- 在提示词中指定 intersectional variance(交叉多样性)
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## Related Concepts
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- [[InclusiveVisualsSpecialist]] — 对抗此问题的专家角色
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- [[NegativePromptLibrary]] — 提供防止此问题的负向提示库
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- [[GibberishText]] — 类似的 AI 幻觉问题
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