凝視指向與頭細化微調指向操作

Abstract

隨著VR頭戴式顯示器的快速發展，研究人員一直在探索可能的交互技術，使用戶能夠輕鬆地與虛擬環境進行交互。研究強調頭部和眼睛的使用，因為我們本能地與我們視線中的物體相互作用。當觀察目標時，頭部和眼睛協調旋轉，以使目標保持在人的中心視野內;然而，它們旋轉的速度和速度尚未量化。之前的工作表明，雖然比眼睛凝視更慢，但是頭部指向更準確，而凝視指向更快但不太準確。更好地理解頭部運動與凝視將使我們能夠結合這兩種指向技術來實現快速和更準確的指向。這項工作首先研究了VR環境中目標採集期間的頭眼協調。然後，我們進一步利用了頭眼協調的本質，並利用眼睛注視的速度和頭部旋轉的精度實現了算法。我們後來在速度，準確性方面比較了Gaze + Head與頭部和眼睛指向的性能。結果表明，我們的技術快速，輕鬆，高度準確，因此比傳統的頭部和眼睛注視技術更受青睞。

With rapid advancement of VR head-mounted display, researchers have been exploring possible interaction technique that allow users to easily interact with virtual environment. Researches have emphasize on uses of head and eyes, since we instinctively interact with objects in our line of sight. When looking at a target, both the head and the eyes rotate in coordination to keep the target within the human’s central vision; however, how much and how fast they rotate have not been quantified. Prior works have shown that head pointing is more accurate though slower than eye gazing, while gaze pointing is faster but less accurate. The better understanding of head movement versus gaze will enable us to combine these two pointing techniques to achieve a fast and more accurate pointing. This work first investigated head-eye coordination during target acquisition in a VR environment. Then, we further exploited the nature of head-eye coordination and implemented an algorithm utilizing the speed of eye gaze and the precision of head rotation. We later compared the performance of Gaze+Head with head and eye pointing in terms of speed, accuracy. The result demonstrated that our technique is fast, effortless, and highly accurate, thus a much more favored pointing method than the traditional head and eye gazing techniques.