WizardVR: 透過擴增實境頭戴顯示器輔助觀察及設計虛擬實境體驗

Abstract

交互設計師和研究人員往往難以探索新穎的虛擬現實體驗，因為時間和技術專業知識需要高成本構建它們。例如，為了使用運動跟踪系統檢測手勢或身體姿勢，研究人員需要預先設置多個攝像頭和跟踪標記。我們提供了WizardVR，它通過使用頭戴式AR顯示器實現VR體驗的嚮導原型設計，使設計人員能夠感知VR世界並將其映射到與物理世界中的VR用戶相同的坐標。它允許設計人員在沒有任何硬件限制的情況下觀察用戶的行為，並為用戶提供適當的反饋。 我們首先與VR專業人員進行了用戶研究，以驗證WizardVR在VR體驗設計初始設計階段的可行性。參與者報告說WizardVR是一種非常有用的早期原型製作方法，並且對在不同領域的應用表現出很高的興趣。 我們進一步討論了使用WizardVR支持VR觸覺體驗的原型設計。基於我們通過採訪VR /觸覺專業人士所徵求的見解，我們設計了AR視覺顯示，專門針對專業人士的需求，以探索虛擬體驗反饋的觸覺體驗。我們討論了我們的設計，並報告了與VR觸覺專業人員進行面試後用戶研究的反饋。最後，我們進行了一項基於實驗室的研究，比較了5種不同的眼睛注視光標可視化設計，使AR HMD的設計人員能夠輕鬆獲得用戶的意圖。

Interaction designers and researchers often have difficulty exploring novel virtual reality experiences due to high costs in terms of time and technology expertise require to build them. For instance, to detect hand gestures or body postures with the motion tracking system, researchers are required to setup multiple cameras and tracking markers beforehand. We present WizardVR, which enables wizard-of-oz prototyping of haptic feedback for VR experiences, by using head-mounted AR displays to allow designers to perceive the VR world and map it to the same coordinates as the VR user in the physical world. It allows designers to observe user's behavior without any hardware limitations and provide proper feedback for user. We conduct a user study with VR professionals to validate the feasibility of WizardVR in initial design phase of VR experience design. Based on the insights we solicited from interviewing with VR/haptic professionals, we designed the AR visual display, specific to the needs of professionals for exploration of haptic experience for virtual experience feedback. We discussed our design and reported on feedback received from post-interview user study with VR haptic professionals. Finally, we conducted a lab-based study to compare 5 different design for eye gaze cursor visualization to allow designers with AR HMD to easily acquire user's intent.