发表机构
Graduate School of Culture Technology at KAIST（KAIST文化技术研究生院）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究针对XR环境提出单手势缩放方案UniScale，设计五种映射策略并与双手捏合基线对比，发现单手势技术在无抓持缩放时可显著减少手部移动，为XR多模态交互提供设计启示。
AI 中文摘要
对象缩放是XR环境中实现复杂且高效任务的基础空间操作。本文研究了XR环境下基于凝视与手部交互的单手势缩放技术。我们提出了UniScale，这是一组替代标准双手捏合的单手势方案，使用户在缩放对象的同时，手部可用于并行空间操作。我们基于物理隐喻设计了五种不同的映射策略，探索了涉及深度、角度、微手势及手指间距输入的单手势控制方式。随后我们将这些技术与标准双手基线（用户通过双手捏合手势调整双手间距）进行对比。在用户研究中，我们在抓持（clutching）和无抓持条件下，评估了它们在3D对象缩放任务中的有效性。结果表明，虽然双手缩放依赖抓持实现稳定控制，但单手势技术在无抓持条件下表现更优，能显著减少手部物理移动。从结果中，我们得出了开发高效XR环境下3D多模态交互的重要设计启示。
英文摘要
Object scaling serves as a fundamental spatial manipulation that enables complex and productive tasks in XR environments. This paper investigates unimanual scaling techniques for XR using gaze and hand interactions. We propose UniScale, a set of unimanual alternatives to the standard bimanual pinch, allowing users to scale objects while preserving hand availability for concurrent spatial manipulations. We design five distinct mapping strategies based on physical metaphors, exploring unimanual control that varies depth, angle, micro-gestures, and finger-distance input. We then compare these techniques against a standard bimanual baseline, in which users adjust the inter-hand distance via a bimanual pinch gesture. In a user study, we evaluate their effectiveness in a 3D object scaling task under both clutching and clutching-free conditions. The results indicate that while bimanual scaling relies on clutching for stable control, unimanual techniques excel in clutching-free conditions, significantly reducing physical hand movement. From the results, we derive valuable design implications for developing efficient 3D multimodal interactions in XR.
Comments11 pages, 7 Figures, Accepted to ISMAR'26, TVCG'26
