Crossing, or goal crossing, has proven useful in various selection scenarios, including pen, mouse, touch, and virtual reality (VR). However, crossing has not been exploited for freehand selection using augmented reality head-mounted displays (AR HMDs). Using the HoloLens, we explore freehand crossing for selection and compare it to the state-of-the-art “gaze and commit” (head gaze) method. We report on three studies investigating freehand crossing in multiple use cases. The first study shows that crossing outperforms head gaze in selection scenarios of varying target arrangements. The second explores crossing, head gaze, and hand pointing in radial menu and dynamic interface scenarios. The third explores crossing as a function carrier for a variety of basic interaction functions in a drawing application. This work builds on existing knowledge on the goal-crossing paradigm by demonstrating its potential as a useful interaction method in 3D AR HMD interfaces.

中文翻译：

---

头戴式增强现实中徒手交叉选择的探索

交叉或目标交叉已被证明在各种选择场景中很有用，包括笔、鼠标、触摸和虚拟现实 (VR)。然而，使用增强现实头戴式显示器 (AR HMD) 尚未利用交叉进行徒手选择。使用 HoloLens，我们探索徒手交叉进行选择，并将其与最先进的“凝视和提交”（头部凝视）方法进行比较。我们报告了在多个用例中调查徒手交叉的三项研究。第一项研究表明，在不同目标排列的选择场景中，交叉优于头部注视。第二个探索径向菜单和动态界面场景中的交叉、头部注视和手指向。第三个探讨了将交叉作为绘图应用程序中各种基本交互功能的功能载体。