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nexus/wiki/concepts/首尾针动画.md
2026-04-18 12:03:16 +08:00

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---
title: "首尾针动画"
type: concept
tags: [AI, 动画, 视频制作]
last_updated: 2026-04-18
---
## Definition
通过上传两个关键帧图片首针和尾针AI 自动补齐中间变化动作,生成连贯动画的技术。
## Principle
1. 上传"首针图"(起始状态)
2. 上传"尾针图"(结束状态)
3. AI 自动分析两张图的差异
4. AI 补齐中间过渡帧
5. 生成平滑过渡的动画视频
## Related Tools
- [[KAI]] — 主流生成工具
- [[海螺AI]] — 竞品
## Related Concepts
- [[九宫格法]] — 上游步骤
- [[快节奏剪辑]] — 下游应用
## Application
- 家装视频从毛坯到精装的变化
- 产品展示从使用前到使用后
- 任何有时间流逝主题的场景