The Object Inside: Assessing 3D Examination with a Spherical Handheld Perspective-Corrected Display
The Object Inside: Assessing 3D Examination with a Spherical Handheld Perspective-Corrected Display
复制标题
内部物体：使用球形手持式透视校正显示器评估 3D 检查
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Thibault Louis
中科院分区：
文献类型：
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作者：
F. Bérard;Thibault Louis
手持式透视校正显示器 (HPCD) 可以营造握持虚拟 3D 物体的感觉。它们提供了与物理对象的操作同构的直接交互。这种错觉取决于提供自然视觉运动耦合的能力。因此需要高性能系统来评估 HPCD 的基本优点。我们使用外部投影构建了球形 HPCD。该系统提供轻量级无线无缝显示，具有头戴式立体声、强大的跟踪功能和低延迟。我们比较了该 HPCD 和其他两种交互的用户表现，这两种交互使用固定平面显示器以及触摸板或球形显示器作为间接输入。该任务涉及检查复杂的虚拟 3D 谜题。还测试了物理谜题作为参考。与预期相反，所有虚拟交互都比更“自然”的物理谜题更有效。 HPCD 的性能低于触摸板。这项研究表明，物体检查任务并没有受益于 HPCD 提供的精确旋转，而是受益于触摸板的高 C/D 增益。
Handheld Perspective Corrected Displays (HPCDs) can create the feeling of holding a virtual 3D object. They offer a direct interaction that is isomorphic to the manipulation of physical objects. This illusion depends on the ability to provide a natural visuomotor coupling. High performances systems are thus required to evaluate the fundamental merits of HPCDs. We built a spherical HPCD using external projection. The system offers a lightweight wireless seamless display with head-coupled stereo, robust tracking, and low latency. We compared users' performances with this HPCD and two other interactions that used a fixed planar display and either a touchpad or the spherical display as an indirect input. The task involved the inspection of complex virtual 3D puzzles. Physical puzzles were also tested as references. Contrary to expectations, all virtual interactions were found to be more efficient than a more "natural" physical puzzle. The HPCD yielded lower performances than the touchpad. This study indicates that the object examination task did not benefit from the accurate and precise rotations offered by the HPCD, but benefited from the high C/D gain of the touchpad.