用生成视频填补叙事空白，让创作者自由扩展故事
Vidmento: Creating Video Stories Through Context-Aware Expansion With Generative Video
- 根据上下文智能生成风格统一的视频片段
- 12位创作者实测显示能有效拓展初始素材
- 适合需要灵活补全剧情的视频创作者
视频叙事常受限于可用素材，限制创作表达并留下未满足的叙事缺口。生成式视频为解决此问题提供了新路径，可通过定制化视觉内容补充真实拍摄素材。我们采访了8位视频创作者，识别其在工作流中整合生成视频的机遇与挑战。基于这些洞察和既有的电影制作原则，我们开发了Vidmento——一个通过上下文感知扩展实现混合视频故事创作的工具。Vidmento可识别叙事发展机会，生成在风格与叙事上与周边内容融合的片段，并提供精细化控制。在12位创作者的测试中，该工具通过系统性地以生成内容扩展初始素材，有效支持了叙事发展与探索，实现了符合创作意图的富有表现力的视频叙事。研究揭示了创作者如何用生成内容填补叙事空缺，以及在哪些环节最看重这种融合能力。
原文摘要 · Abstract (English)
Video storytelling is often constrained by available material, limiting creative expression and leaving undesired narrative gaps. Generative video offers a new way to address these limitations by augmenting captured media with tailored visuals. To explore this potential, we interviewed eight video creators to identify opportunities and challenges in integrating generative video into their workflows. Building on these insights and established filmmaking principles, we developed Vidmento, a tool for authoring hybrid video stories that combine captured and generated media through context-aware expansion. Vidmento surfaces opportunities for story development, generates clips that blend stylistically and narratively with surrounding media, and provides controls for refinement. In a study with 12 creators, Vidmento supported narrative development and exploration by systematically expanding initial materials with generative media, enabling expressive video storytelling aligned with creative intent. We highlight how creators bridge story gaps with generative content and where they find this blending capability most valuable.
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